rzen
1e65b7c986
The m4 scene plumbing was already honest — one WindowGroup value per CardWindowRef enforces one-window-per-card, and CardWindowFate's ancestor walk answered dismissal — so this card fills the window: a two-column shell whose body column takes all resize flex and whose sidebar width derives once from font metrics (26 characters of average body advance plus em gutters), the five 05-ordered section headers as placeholders, and the card body as selectable plain text until Preview mode lands. The fate walk now returns a CardPlacement (card + lane), so one pass answers both liveness and the live board › lane subtitle; a board rename lands for free through displayName. Card windows remember their frames per card in the board record (case-folded id keys, unchanged-writes-nothing), restoring instead of cascading; only unremembered cards take the last-used size and cascade. Store acquisition stays gated on liveStore — a card window never opens a board — and the close-flush hook stands with nothing to flush until the Edit-session card. Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
834 lines
41 KiB
Swift
834 lines
41 KiB
Swift
import Foundation
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import os
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// MARK: - Timestamps
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/// The one shape a `Date` takes in the registry file — ISO 8601 **with fractional seconds**, UTC.
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///
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/// **Why fractional seconds** rather than `JSONEncoder.DateEncodingStrategy.iso8601`'s whole ones:
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/// `lastOpened` is not a display stamp, it is the recents list's *sort key* (02-architecture.md
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/// § Per-board app state, "The recents list *is* this registry sorted by last-opened"). Restoring
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/// several boards at launch happens well inside one second, and at whole-second resolution those
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/// rows would tie and order arbitrarily.
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///
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/// **Why `ISO8601DateFormatter`** and not `Date.ISO8601FormatStyle`, the modern value type that
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/// would be `Sendable` and need none of the ceremony below: the format style *truncates* to the
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/// millisecond while its own parser rounds, so `parse(format(d)) != d` for about half of all dates
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/// (measured, not assumed — it drifts a millisecond earlier on each round trip). This formatter is
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/// an exact fixed point, which is what lets `BoardRegistry.stamp(_:)` guarantee that a record in
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/// memory and the same record reloaded from disk are *equal*, not merely close.
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///
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/// **Built per use rather than shared**: the formatter is a non-`Sendable` class and the encoder's
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/// and decoder's date strategies are `@Sendable` closures, so a captured or global instance would
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/// be an unchecked concurrency promise. One costs microseconds and this file holds a handful of
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/// records — the safe answer is also the cheap one.
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private func boardRegistryTimestampFormatter() -> ISO8601DateFormatter {
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let formatter = ISO8601DateFormatter()
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formatter.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
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formatter.timeZone = TimeZone(identifier: "UTC")
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return formatter
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}
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// MARK: - Records
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/// A board's window frame, remembered per board (02-architecture.md § Windows, "per-board frame
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/// memory").
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///
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/// Stored as four `Double`s rather than an `NSRect`/`CGRect` so the persisted JSON is a shape this
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/// file owns, independent of any framework's `Codable` conformance. Repositioning a frame onto a
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/// live screen when the saved one is gone is the window layer's job, not this type's — nothing here
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/// validates the numbers.
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public struct WindowFrame: Codable, Sendable, Equatable {
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public var x: Double
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public var y: Double
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public var width: Double
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public var height: Double
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public init(x: Double, y: Double, width: Double, height: Double) {
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self.x = x
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self.y = y
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self.width = width
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self.height = height
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}
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}
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/// One known board: everything the app keeps *about* a board that must never be written *into* it.
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///
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/// **Files-first is absolute** (02-architecture.md § Per-board app state): no frontmatter key, no
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/// sidecar, no xattr — this record lives wholly in Application Support, which is also why two
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/// machines sharing a board through a remote each keep their own (push-on-commit and window frames
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/// are genuinely per-machine choices).
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///
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/// The **bookmark is the identity**; `lastKnownPath` is display text and nothing else. Matching an
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/// opened folder to its record resolves the bookmark and compares file identity, so a board renamed
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/// or moved on the same volume keeps its settings and its place in recents.
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///
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/// ### Evolving this struct
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///
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/// The synthesized `Codable` conformance rejects a file missing any non-optional key, and
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/// `BoardRegistry` responds to a rejected file by quarantining it — every record lost. So **a key
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/// added here must be optional or have a decoding default**, or the addition silently empties every
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/// existing user's recents on upgrade. That policy, not a version field, is what keeps this format
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/// readable across releases.
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public struct BoardRecord: Codable, Sendable, Equatable, Identifiable {
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public let id: UUID
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/// The security-scoped bookmark — **the board's identity**, refreshed on every open. Empty only
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/// in the degenerate case where the system refused to make one at all, which is a record born
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/// orphaned: it shows in recents with Forget and never matches an open.
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public var bookmark: Data
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/// Last-known title or folder name, for the recents row. Display only.
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public var displayName: String
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/// Where the board was last seen, for the recents row when the bookmark no longer resolves and
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/// there is nothing else to show. **Never used for matching** — that is the bookmark's job, and
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/// a path that matched would reintroduce exactly the identity-by-string bug this design excludes.
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public var lastKnownPath: String
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public var lastOpened: Date
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/// Counts stamped at last close, `nil` until a close has stamped them.
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///
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/// Registry-cached on purpose: the welcome window renders these instead of scanning
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/// (§ Per-board app state, "no directory scan at welcome time" — which would be slow on a big
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/// board and would hang on an unavailable one). Staleness until the next open is accepted, and a
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/// board that has never been closed simply shows no counts.
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public var laneCount: Int?
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public var cardCount: Int?
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public var windowFrame: WindowFrame?
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/// This board's **card** window frames, keyed by card GUID (05-card-window.md ▸ Window: "frames
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/// restore per card across relaunch where state restoration allows").
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///
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/// Here rather than in `UserDefaults` for the reason the board's own frame is here: a frame
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/// belongs to a board that the bookmark follows through renames and moves, and a path-keyed
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/// preference would lose every card frame the first time the board was renamed. And here rather
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/// than in the board folder because files-first is absolute — a window frame is per-machine app
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/// state, never board data.
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///
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/// **The key is the card id case-folded** (`ItemID`'s comparison rule), so a folder respelled
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/// `ABC…` finds the frame stored under `abc…` — the same identity rule the window key itself
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/// uses, since the two must agree about what "this card" means.
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///
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/// The honest residual: entries accumulate for every card the user has ever opened a window for
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/// on this board, and a card deleted afterwards leaves its entry behind. Accepted — the record
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/// is per-machine convenience state measured in tens of bytes per entry, and it dies wholesale
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/// with Forget like everything else here.
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public var cardWindowFrames: [String: WindowFrame]?
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/// The board's `icon` — registry-cached with live write-through, beside `displayName`
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/// (02-architecture.md § Per-board app state: "The row's title and icon are registry-cached
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/// too — with live write-through"). `nil` when the board's `icon` key is missing or
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/// malformed, which the welcome row reads exactly as the board window itself does: draw the
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/// level default, never a guess (`ItemSymbol`). The value round-trips verbatim as the
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/// frontmatter carries it — an SF Symbol name, unvalidated here; resolving it against what
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/// the running system can draw is the renderer's job, not this record's.
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///
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/// Stamped at the same moments `displayName` is (`recordOpen`, `recordClose`), and — unlike
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/// the counts — refreshed *live* while the board is open: `BoardRegistry.syncDisplayState`
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/// is the write-through `BoardStore`'s reload pipeline calls into.
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public var icon: String?
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/// The board's `iconColor`, cached beside `icon` for the same reason and at the same
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/// moments. A palette name or a `#RRGGBB[AA]` hex, resolved through `Palette` at render
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/// time — never here.
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public var iconColor: String?
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/// Whether this board's window is open **right now** — the restoration set, as a live marker
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/// rather than an at-quit write (02-architecture.md § Launch and window lifecycle, settled).
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///
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/// Set when the board's window opens, cleared on *user-initiated* close; quit's teardown
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/// deliberately leaves it standing, because the boards open at quit are by definition the ones
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/// to restore. **Crash recovery falls out for free**: after a crash the flags describe what was
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/// open at crash time, so the next launch restores exactly that — no separate recovery logic, no
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/// once-at-quit stamp to race teardown or miss when the app dies.
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///
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/// **Optional because every key here must be** (see Evolving this struct above): a registry file
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/// written before this key existed decodes with `nil`, which reads as "not open" and costs the
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/// user nothing. A non-optional `Bool` would have quarantined every existing file on upgrade and
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/// emptied everyone's recents.
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public var isOpenNow: Bool?
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/// Whether committing also pushes (07-sync-collab.md). Off by default: pushing is a decision,
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/// not a side effect.
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public var pushOnCommit: Bool
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/// Whether this board's once-per-board iCloud/network-volume warning has been shown
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/// (07-sync-collab.md). Once-per-*board*, which is why it lives on the record rather than in
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/// `UserDefaults`.
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public var remoteLocationWarned: Bool
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public init(
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id: UUID = UUID(),
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bookmark: Data,
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displayName: String,
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lastKnownPath: String,
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lastOpened: Date,
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laneCount: Int? = nil,
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cardCount: Int? = nil,
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windowFrame: WindowFrame? = nil,
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cardWindowFrames: [String: WindowFrame]? = nil,
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isOpenNow: Bool? = nil,
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pushOnCommit: Bool = false,
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remoteLocationWarned: Bool = false,
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icon: String? = nil,
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iconColor: String? = nil
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) {
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self.id = id
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self.bookmark = bookmark
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self.displayName = displayName
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self.lastKnownPath = lastKnownPath
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self.lastOpened = lastOpened
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self.laneCount = laneCount
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self.cardCount = cardCount
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self.windowFrame = windowFrame
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self.cardWindowFrames = cardWindowFrames
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self.isOpenNow = isOpenNow
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self.pushOnCommit = pushOnCommit
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self.remoteLocationWarned = remoteLocationWarned
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self.icon = icon
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self.iconColor = iconColor
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}
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}
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/// A recents row: the record, plus whether its board can be reached right now.
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///
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/// The classification is a **bookmark resolution and nothing else** — no `fileExists`, no listing,
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/// no counting. That is what makes `BoardRegistry.recents()` safe to call while a network volume is
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/// offline (§ Per-board app state, and § Graceful orphaning for what `unavailable` means to the UI:
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/// the row shows with Forget rather than disappearing).
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public enum RecentBoard: Sendable, Equatable {
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/// Resolved. `at` is where the board lives *now*, which is not necessarily `lastKnownPath` — a
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/// bookmark follows renames and moves on the same volume.
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case available(BoardRecord, at: URL)
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/// The bookmark no longer resolves: deleted, or moved across a volume boundary a bookmark
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/// cannot follow. Orphaned — "its settings are conveniences and die with it".
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case unavailable(BoardRecord)
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public var record: BoardRecord {
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switch self {
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case let .available(record, _): record
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case let .unavailable(record): record
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}
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}
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/// Where the board is now, or `nil` for an orphan.
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public var url: URL? {
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switch self {
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case let .available(_, url): url
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case .unavailable: nil
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}
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}
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}
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// MARK: - BoardRegistry
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/// The persistent side of per-board app state: one record per known board, in Application Support
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/// (02-architecture.md § Per-board app state).
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///
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/// ### Three rules do most of the work
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///
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/// 1. **Identity, never paths.** An opened folder finds its record by resolving each record's
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/// bookmark and comparing file identity. A renamed board keeps its settings; a board reopened
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/// through a symlink or a moved parent does not acquire a second record.
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/// 2. **Nothing it does touches a board folder.** Not a byte, not an xattr. The one file it writes
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/// is its own, and it lives somewhere else entirely.
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/// 3. **It never takes the app down.** A missing file is an empty registry; a corrupt one is moved
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/// aside and the registry starts empty; a save that fails is logged. Every method here is
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/// non-throwing on purpose — "its settings are conveniences", and losing a window frame must
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/// never cost the user a board.
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///
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/// ### Deliberately not here
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///
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/// App-wide state that is not board-scoped — quick-style recents, the SSH host-key table, the
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/// last-used card-window size — lives *beside* this file, not in it (§ Per-board app state, "App-wide
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/// state has the same home"). Secrets live in the Keychain and nowhere near here.
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@MainActor
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public final class BoardRegistry {
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/// The JSON file this registry is. Public because a diagnostic ("Reveal registry in Finder") and
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/// every test want to name it, and because injecting it is how a test stays out of the real
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/// Application Support directory.
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public let storageURL: URL
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private var records: [BoardRecord]
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private static let logger = Logger(subsystem: "dev.rzen.indie.Kanban", category: "board-registry")
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/// `~/Library/Application Support/<bundle id>/board-registry.json`, inside the sandbox
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/// container. The bundle-id subfolder is Apple's convention and keeps the app's files together
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/// as the app-wide neighbours arrive.
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public static var defaultStorageURL: URL {
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let support = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first
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?? URL(fileURLWithPath: NSHomeDirectory(), isDirectory: true)
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.appendingPathComponent("Library/Application Support", isDirectory: true)
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let bundleIdentifier = Bundle.main.bundleIdentifier ?? "dev.rzen.indie.Kanban"
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return support
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.appendingPathComponent(bundleIdentifier, isDirectory: true)
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.appendingPathComponent("board-registry.json", isDirectory: false)
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}
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/// Loads the registry, tolerating everything a file on disk can be.
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///
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/// Missing file: an empty registry — the first-launch case, and not an error. **Corrupt file:
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/// renamed aside with a timestamp and the registry starts empty.** Renamed rather than deleted
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/// because the file may be the only trace of a user's board list, and a support request can read
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/// it even when this app cannot; empty rather than fatal because a truncated convenience file
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/// must not stand between the user and their boards.
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public init(storageURL: URL) {
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self.storageURL = storageURL
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self.records = []
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self.records = loadFromDisk()
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}
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// MARK: - Opening and closing
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/// Records that a board was opened, and answers with the id of the record it belongs to.
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///
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/// Matching is the interesting half: every existing record's bookmark is resolved and its file
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/// identity compared with the opened folder's. A hit is *the* record no matter what path either
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/// side is spelled with — the done-when criterion for a renamed board keeping its settings.
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/// Records whose bookmarks no longer resolve are skipped rather than repaired: an orphan is a
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/// recents row with Forget, not a candidate for a board that is demonstrably somewhere else.
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///
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/// A match is updated in place with a **fresh bookmark** (subsuming the stale-refresh case), the
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/// path it was opened at, and `lastOpened` = now. No match creates a record. Either way the
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/// file is saved before returning.
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///
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/// **`isOpenNow` is deliberately untouched here.** Recording an open and *being* open are two
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/// different facts: this method is called before a window exists (and, later, by flows that
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/// record a board without showing one), so the flag is set by `setOpenNow(id:)` once the window
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/// has actually opened. Folding it in would flag boards that never made it onto screen and hand
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/// the next launch a restoration set describing failures.
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///
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/// ### `displayName` is `nil` before a load has run — that is the whole of "record before load"
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///
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/// 02-architecture.md § Per-board app state (settled): **"the registry record is created before
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/// loading"**, and **"the record's provisional display name is the folder name … the first
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/// successful load replaces it with the cached title."** This method is the one open-time stamp
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/// both moments share, told apart by whether the caller has anything authoritative to say yet:
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///
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/// - `nil` (the "before load" call, `BoardWindowHost.start()`'s first act): the bookmark,
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/// `lastKnownPath`, and `lastOpened` refresh as always, but `displayName`/`icon`/`iconColor`
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/// are left **untouched** on a record that already has them — the last successful open's
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/// cached title is still the best information this board's row has, and a load that is about
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/// to fail must not regress it to the bare folder name. A **brand-new** record has nothing
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/// cached yet, so it takes the folder name — "a never-successfully-opened record is not a
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/// special class; it lingers in recents like any other."
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/// - Non-`nil` (a caller with real, loaded values): overwrites `displayName`/`icon`/`iconColor`
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/// unconditionally, exactly as before this distinction existed. Nothing in this app calls it
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/// that way any more — a successful load's replacement goes through `syncDisplayState`
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/// instead, which shares its no-op-skip discipline with every reload afterward — but the
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/// parameter stays meaningful on its own rather than folding into a second method, and every
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/// existing test naming a concrete string exercises exactly this branch.
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///
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/// **Why this does not cost a second bookmark mint.** `recordOpen` is called exactly once per
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/// open attempt (the "before load" call), so the one bookmark it mints here is the *whole* of
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/// this open's mint (02 § Per-board app state, "one bookmark per open board"). The successful-load
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/// follow-up is `syncDisplayState`, which never touches `bookmark` at all.
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@discardableResult
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public func recordOpen(
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of rootURL: URL,
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displayName: String? = nil,
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icon: String? = nil,
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iconColor: String? = nil
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) -> UUID {
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let bookmark = Self.makeBookmark(for: rootURL)?.data ?? Data()
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if bookmark.isEmpty {
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// Both the security-scoped and the plain attempt failed — vanishingly unlikely for a
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// folder the app has just opened. The record is still created: a row the user can see
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// and Forget beats a board that silently never joins recents.
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Self.logger.error("no bookmark could be created for the opened board; its record is born orphaned")
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}
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if let index = indexOfRecord(matching: rootURL) {
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records[index].bookmark = bookmark
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if let displayName {
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records[index].displayName = displayName
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records[index].icon = icon
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records[index].iconColor = iconColor
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}
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records[index].lastKnownPath = rootURL.path
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records[index].lastOpened = Self.stamp()
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save()
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return records[index].id
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}
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let record = BoardRecord(
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bookmark: bookmark,
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displayName: displayName ?? Self.folderName(of: rootURL),
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lastKnownPath: rootURL.path,
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lastOpened: Self.stamp(),
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icon: icon,
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iconColor: iconColor
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)
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records.append(record)
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save()
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return record.id
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}
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|
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/// The folder name, extension stripped — `AppModel.folderDisplayName(of:)`'s own rule, restated
|
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/// here rather than reached for: this file is `Foundation`-only and must not import the app
|
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/// layer to borrow four words of `URL` math.
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private static func folderName(of url: URL) -> String {
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url.deletingPathExtension().lastPathComponent
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}
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|
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/// Stamps the counts the welcome window will render for this board until it is opened again
|
|
/// (§ Per-board app state, "Recents counts are registry-cached ... stamped at last close").
|
|
///
|
|
/// Called from the close-flush sequence (02-architecture.md § Launch and window lifecycle),
|
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/// where the store's last snapshot is still in hand — which is the whole reason the counts are
|
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/// free here and expensive anywhere else.
|
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///
|
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/// `displayName`/`icon`/`iconColor` are re-stamped here too, from the same last-held snapshot.
|
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/// Unlike the counts, these three are already kept current while the board is open — every
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/// reload write-throughs via `syncDisplayState` — so this is the belt-and-braces close-time
|
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/// stamp rather than their only update path: a final, cheap guarantee that closing a board
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/// never leaves its row one edit behind, whatever wired the live path.
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public func recordClose(
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id: UUID,
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displayName: String,
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laneCount: Int,
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cardCount: Int,
|
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icon: String? = nil,
|
|
iconColor: String? = nil
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) {
|
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update(id) { record in
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record.displayName = displayName
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record.icon = icon
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record.iconColor = iconColor
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|
record.laneCount = laneCount
|
|
record.cardCount = cardCount
|
|
}
|
|
}
|
|
|
|
// MARK: - The open-now marker
|
|
|
|
/// Marks this board as open — called when its window has actually opened, not when the open was
|
|
/// merely attempted (02-architecture.md § Launch and window lifecycle).
|
|
public func setOpenNow(id: UUID) {
|
|
update(id) { $0.isOpenNow = true }
|
|
}
|
|
|
|
/// Clears the marker — **user-initiated close only**.
|
|
///
|
|
/// Quit's teardown must never call this, and that omission is the entire restoration mechanism:
|
|
/// "quit's teardown closes deliberately leave it standing (the boards were open at quit by
|
|
/// definition; teardown distinguishes user-close from quit-close, and that distinction is the
|
|
/// whole mechanism)". A crash calls nothing at all, which is why crash recovery needs no code of
|
|
/// its own — the flags already describe what was open when the app died.
|
|
public func clearOpenNow(id: UUID) {
|
|
update(id) { $0.isOpenNow = false }
|
|
}
|
|
|
|
/// The boards to reopen at launch: every record still flagged open, **oldest `lastOpened`
|
|
/// first**.
|
|
///
|
|
/// Ascending, unlike `recents()`, because these are reopened in order and the result should be
|
|
/// the stacking the user left behind — the most recently opened board ends up frontmost because
|
|
/// it opens last. Classification is `recents()`' own bookmark resolution, reused rather than
|
|
/// re-implemented: a flagged board on an unmounted volume is `unavailable` here for exactly the
|
|
/// reason it is unavailable there, and the launch flow renders it as a failed restoration
|
|
/// (§ "A restored board that fails surfaces on welcome, row-level") instead of hanging on a
|
|
/// mount.
|
|
///
|
|
/// The preference gates only whether this is *consulted*; the flags are maintained regardless.
|
|
public func restorables() -> [RecentBoard] {
|
|
recents()
|
|
.filter { $0.record.isOpenNow == true }
|
|
// Ascending, with the same id tie-break `recents()` uses inverted, so two boards opened
|
|
// in the same millisecond still come back in one stable order rather than whichever
|
|
// `sorted(by:)` felt like.
|
|
.sorted { lhs, rhs in
|
|
lhs.record.lastOpened == rhs.record.lastOpened
|
|
? lhs.record.id.uuidString < rhs.record.id.uuidString
|
|
: lhs.record.lastOpened < rhs.record.lastOpened
|
|
}
|
|
}
|
|
|
|
// MARK: - Per-board settings
|
|
|
|
public func updateWindowFrame(id: UUID, frame: WindowFrame) {
|
|
update(id) { $0.windowFrame = frame }
|
|
}
|
|
|
|
/// One card window's remembered frame on this board, or `nil` when that card has never had one
|
|
/// (05-card-window.md ▸ Window). The caller decides what "no frame" means — for a card window it
|
|
/// means "open at the last-used size and cascade".
|
|
public func cardWindowFrame(id: UUID, cardID: ItemID) -> WindowFrame? {
|
|
record(id: id)?.cardWindowFrames?[cardID.canonicalValue]
|
|
}
|
|
|
|
/// Remembers one card window's frame. Keyed by `ItemID`'s own comparison value, so the read
|
|
/// above finds it whatever case the card's folder is spelled in.
|
|
///
|
|
/// **Unchanged writes nothing**, `syncDisplayState`'s rule: a card window reports its frame on
|
|
/// every move and at the end of every live resize, and the board window's twin already saves on
|
|
/// each of those — this one must not add a registry file write for a frame that did not move.
|
|
public func updateCardWindowFrame(id: UUID, cardID: ItemID, frame: WindowFrame) {
|
|
guard cardWindowFrame(id: id, cardID: cardID) != frame else { return }
|
|
update(id) { record in
|
|
var frames = record.cardWindowFrames ?? [:]
|
|
frames[cardID.canonicalValue] = frame
|
|
record.cardWindowFrames = frames
|
|
}
|
|
}
|
|
|
|
/// The live write-through for an *open* board's title, icon, and iconColor
|
|
/// (02-architecture.md § Per-board app state, "these three refresh whenever an open board's
|
|
/// reload changes them"). `BoardStore` calls into this — indirectly, through the delegate
|
|
/// `BoardWindowHost.configureWindow` wires — on every successful reload, so an in-app rename
|
|
/// or restyle lands in the welcome row the instant the store's snapshot shows it, and a
|
|
/// foreign edit of an *open* board's root rides the same reload for free.
|
|
///
|
|
/// **A no-op, and no save, when nothing differs from what is already cached.** A reload fires
|
|
/// on every tree change anywhere in the board, most of which touch no board-level field at
|
|
/// all, so calling this unconditionally must not churn the registry file on an unrelated card
|
|
/// edit — the same "an unchanged value writes nothing" rule `setLaneWidth` and `commitRename`
|
|
/// already keep.
|
|
///
|
|
/// An unknown id is `update`'s own no-op (a board closed and forgotten mid-reload), for the
|
|
/// same reason every other setter here tolerates one.
|
|
public func syncDisplayState(id: UUID, title: String, icon: String?, iconColor: String?) {
|
|
guard let index = indexOfRecord(id) else {
|
|
Self.logger.debug("syncDisplayState: no record for this id — ignored")
|
|
return
|
|
}
|
|
guard records[index].displayName != title
|
|
|| records[index].icon != icon
|
|
|| records[index].iconColor != iconColor
|
|
else { return }
|
|
|
|
records[index].displayName = title
|
|
records[index].icon = icon
|
|
records[index].iconColor = iconColor
|
|
save()
|
|
}
|
|
|
|
public func setPushOnCommit(id: UUID, _ value: Bool) {
|
|
update(id) { $0.pushOnCommit = value }
|
|
}
|
|
|
|
/// Marks this board's once-per-board remote-location warning as shown (07-sync-collab.md).
|
|
/// One-way: there is no un-warn, because the warning is about a location the board is already at.
|
|
public func setRemoteLocationWarned(id: UUID) {
|
|
update(id) { $0.remoteLocationWarned = true }
|
|
}
|
|
|
|
// MARK: - Reading
|
|
|
|
/// Every known board, most recently opened first, each classified by whether its bookmark
|
|
/// resolves — the recents list, which *is* this registry sorted by last-opened.
|
|
///
|
|
/// **No directory is scanned and nothing is counted here.** Counts come from the records; the
|
|
/// only filesystem work is bookmark resolution, done with `.withoutUI` and `.withoutMounting`
|
|
/// so an offline volume classifies as unavailable instead of blocking the welcome window on a
|
|
/// mount.
|
|
///
|
|
/// Two quiet side effects, both of them the "stale is fine — refresh silently" rule: a bookmark
|
|
/// that resolves *stale* is replaced with a fresh one, and if any was, the file is saved. A
|
|
/// stale bookmark still works, but only for a while — refreshing it here is what keeps a board
|
|
/// that moves around from eventually orphaning itself. `lastKnownPath` is deliberately **not**
|
|
/// refreshed: it is the display fallback for a record that *cannot* be resolved, so the resolved
|
|
/// URL, not the record, is what an available row shows.
|
|
///
|
|
/// The sort is total — `lastOpened` descending, then id — because `sorted(by:)` is not stable
|
|
/// and two rows that tie should still come back in the same order every call.
|
|
public func recents() -> [RecentBoard] {
|
|
var resolvedURLs: [UUID: URL] = [:]
|
|
var refreshedAny = false
|
|
|
|
for index in records.indices {
|
|
guard let resolution = Self.resolve(records[index].bookmark) else { continue }
|
|
resolvedURLs[records[index].id] = resolution.url
|
|
guard resolution.isStale else { continue }
|
|
if let refreshed = Self.withScopedAccess(to: resolution.url, { Self.makeBookmark(for: $0) }) {
|
|
records[index].bookmark = refreshed.data
|
|
refreshedAny = true
|
|
}
|
|
}
|
|
if refreshedAny {
|
|
save()
|
|
}
|
|
|
|
return records
|
|
.sorted { lhs, rhs in
|
|
lhs.lastOpened == rhs.lastOpened
|
|
? lhs.id.uuidString > rhs.id.uuidString
|
|
: lhs.lastOpened > rhs.lastOpened
|
|
}
|
|
.map { record in
|
|
if let url = resolvedURLs[record.id] {
|
|
.available(record, at: url)
|
|
} else {
|
|
.unavailable(record)
|
|
}
|
|
}
|
|
}
|
|
|
|
public func record(id: UUID) -> BoardRecord? {
|
|
records.first { $0.id == id }
|
|
}
|
|
|
|
/// Drops a record — the Forget action on an orphaned recents row, and the only way a record
|
|
/// leaves. Nothing else prunes: a board that is merely unavailable today may be a remounted
|
|
/// volume tomorrow, so forgetting is always the user's call.
|
|
public func forget(id: UUID) {
|
|
guard let index = indexOfRecord(id) else { return }
|
|
records.remove(at: index)
|
|
save()
|
|
}
|
|
|
|
/// Drops every record — File ▸ Open Recent ▸ Clear Menu (11-command-nexus.md).
|
|
///
|
|
/// **Finder's Clear Menu clears the menu; this registry *is* the menu**, so the equivalence is
|
|
/// exact: there is no separate recents list that could be emptied while the records stayed, and
|
|
/// a record whose board never appears anywhere is a setting nothing can reach. It is therefore
|
|
/// `forget(id:)` applied to every row, and the one test worth writing says exactly that.
|
|
///
|
|
/// One save rather than one per record: the file is rewritten wholesale anyway, and forgetting
|
|
/// twenty boards should not be twenty writes.
|
|
public func forgetAll() {
|
|
guard !records.isEmpty else { return }
|
|
records.removeAll()
|
|
save()
|
|
}
|
|
|
|
// MARK: - Matching
|
|
|
|
/// The index of the record whose bookmark resolves to the same file as `url`, if any.
|
|
private func indexOfRecord(matching url: URL) -> Int? {
|
|
guard let target = FileIdentity(of: url) else { return nil }
|
|
return records.firstIndex { record in
|
|
guard let resolution = Self.resolve(record.bookmark) else { return false }
|
|
// Scope is started around the identity read and stopped immediately. Resolving a
|
|
// security-scoped bookmark grants nothing by itself, and in the sandbox an unscoped
|
|
// `resourceValues` call on some *other* board's folder is exactly the read that gets
|
|
// refused — which would silently turn "the same board" into "a new one" and duplicate
|
|
// the record. The pairing is balanced, so an outer scope this app holds elsewhere is
|
|
// unaffected.
|
|
return Self.withScopedAccess(to: resolution.url) { FileIdentity(of: $0) == target }
|
|
}
|
|
}
|
|
|
|
private func indexOfRecord(_ id: UUID) -> Int? {
|
|
records.firstIndex { $0.id == id }
|
|
}
|
|
|
|
/// Mutates a record and saves. An unknown id is a no-op: a window that outlived its record —
|
|
/// the user pressed Forget while the board was open — must not crash on its way out.
|
|
private func update(_ id: UUID, _ mutate: (inout BoardRecord) -> Void) {
|
|
guard let index = indexOfRecord(id) else {
|
|
Self.logger.debug("update: no record for this id — ignored")
|
|
return
|
|
}
|
|
mutate(&records[index])
|
|
save()
|
|
}
|
|
|
|
// MARK: - Bookmarks
|
|
|
|
/// A bookmark and which flavor the system actually gave us.
|
|
struct Bookmark {
|
|
let data: Data
|
|
let isSecurityScoped: Bool
|
|
}
|
|
|
|
/// Creates a bookmark for `url`, security-scoped if the system allows it.
|
|
///
|
|
/// **The security-scoped path is the real one.** In production every board URL arrives through
|
|
/// NSOpenPanel, a Finder drag, or a previously resolved bookmark, so the app already holds
|
|
/// access and `.withSecurityScope` succeeds — which is what lets the board reopen after a
|
|
/// relaunch at all (02-architecture.md § Platform, "security-scoped bookmarks for reopening
|
|
/// boards across launches"; the `com.apple.security.files.bookmarks.app-scope` entitlement is
|
|
/// what backs it).
|
|
///
|
|
/// **The plain fallback exists for the cases where that is not true**: a unit test pointing at a
|
|
/// temp directory the panel never blessed, and a non-sandboxed debug build where the option is
|
|
/// meaningless. A plain bookmark still tracks renames and moves — the identity story is intact —
|
|
/// it simply grants no access on resolution, which outside the sandbox is nothing to grant.
|
|
/// Returning `nil` from both attempts is left to the caller, which records an orphan rather than
|
|
/// dropping the board.
|
|
static func makeBookmark(for url: URL) -> Bookmark? {
|
|
if let data = try? url.bookmarkData(options: [.withSecurityScope]) {
|
|
return Bookmark(data: data, isSecurityScoped: true)
|
|
}
|
|
if let data = try? url.bookmarkData(options: []) {
|
|
Self.logger.debug("security-scoped bookmark unavailable; fell back to a plain bookmark")
|
|
return Bookmark(data: data, isSecurityScoped: false)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
struct Resolution {
|
|
let url: URL
|
|
let isStale: Bool
|
|
}
|
|
|
|
/// Resolves a bookmark, mirroring `makeBookmark(for:)`'s two flavors in the same order.
|
|
///
|
|
/// `.withoutUI` and `.withoutMounting`: resolution runs during a recents listing, and a recents
|
|
/// listing must never put up a dialog or block for seconds mounting a server. A board on an
|
|
/// unmounted volume is *unavailable right now*, which is precisely what the row should say.
|
|
///
|
|
/// Resolution alone does **not** start security-scoped access — the caller does that around the
|
|
/// use, balanced. That is why `recents()` can classify every record without ever holding a scope
|
|
/// open.
|
|
static func resolve(_ bookmark: Data) -> Resolution? {
|
|
guard !bookmark.isEmpty else { return nil }
|
|
|
|
var isStale = false
|
|
if let url = try? URL(
|
|
resolvingBookmarkData: bookmark,
|
|
options: [.withSecurityScope, .withoutUI, .withoutMounting],
|
|
relativeTo: nil,
|
|
bookmarkDataIsStale: &isStale
|
|
) {
|
|
return Resolution(url: url, isStale: isStale)
|
|
}
|
|
|
|
isStale = false
|
|
if let url = try? URL(
|
|
resolvingBookmarkData: bookmark,
|
|
options: [.withoutUI, .withoutMounting],
|
|
relativeTo: nil,
|
|
bookmarkDataIsStale: &isStale
|
|
) {
|
|
return Resolution(url: url, isStale: isStale)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
/// Runs `body` with security-scoped access held, if this URL has any to hold.
|
|
///
|
|
/// `startAccessingSecurityScopedResource()` returns `false` for a URL that is not
|
|
/// security-scoped (a plain bookmark's, or anything already inside the container), and then
|
|
/// there is nothing to stop — so the pairing stays balanced either way.
|
|
static func withScopedAccess<T>(to url: URL, _ body: (URL) -> T) -> T {
|
|
let started = url.startAccessingSecurityScopedResource()
|
|
defer {
|
|
if started {
|
|
url.stopAccessingSecurityScopedResource()
|
|
}
|
|
}
|
|
return body(url)
|
|
}
|
|
|
|
// MARK: - Persistence
|
|
|
|
/// Now, at the resolution the file records — so the registry in memory and the registry on disk
|
|
/// are *identical*, not merely close.
|
|
///
|
|
/// Stamping through the same formatter the encoder uses makes the round trip exact by
|
|
/// construction: what `string(from:)` produces, `date(from:)` maps back to the value that will
|
|
/// be decoded, and that value formats to the same string again. Without this a freshly stamped
|
|
/// record and its reloaded self would differ in the microseconds no format carries — an equality
|
|
/// that fails only sometimes, which is the worst kind.
|
|
private static func stamp(_ date: Date = Date()) -> Date {
|
|
let formatter = boardRegistryTimestampFormatter()
|
|
return formatter.date(from: formatter.string(from: date)) ?? date
|
|
}
|
|
|
|
/// Writes the whole file, atomically, and never throws.
|
|
///
|
|
/// Whole-file because it is a handful of small records and a partial writer would be a
|
|
/// consistency problem in exchange for nothing. Atomic because a crash mid-write must leave the
|
|
/// previous file, not half of this one — the same temp-then-rename discipline `BoardWriter` uses
|
|
/// on the user's own files. A failure is logged and swallowed: the caller is a window close or a
|
|
/// settings toggle, and neither has anything useful to do about a full disk.
|
|
private func save() {
|
|
let encoder = JSONEncoder()
|
|
// `.sortedKeys` for a byte-stable file (the same records always produce the same bytes) and
|
|
// `.prettyPrinted` because the one time anybody reads this file by hand is when something
|
|
// has gone wrong.
|
|
encoder.outputFormatting = [.sortedKeys, .prettyPrinted]
|
|
encoder.dateEncodingStrategy = .custom { date, encoder in
|
|
var container = encoder.singleValueContainer()
|
|
try container.encode(boardRegistryTimestampFormatter().string(from: date))
|
|
}
|
|
|
|
// Sorted by id, not by recency: the array's order carries no meaning (`recents()` sorts),
|
|
// so pinning it keeps the file from churning every time a board is opened.
|
|
let ordered = records.sorted { $0.id.uuidString < $1.id.uuidString }
|
|
|
|
do {
|
|
try FileManager.default.createDirectory(
|
|
at: storageURL.deletingLastPathComponent(),
|
|
withIntermediateDirectories: true
|
|
)
|
|
try encoder.encode(ordered).write(to: storageURL, options: .atomic)
|
|
} catch {
|
|
Self.logger.error("could not save the board registry: \(error.localizedDescription, privacy: .public)")
|
|
}
|
|
}
|
|
|
|
private func loadFromDisk() -> [BoardRecord] {
|
|
guard FileManager.default.fileExists(atPath: storageURL.path) else { return [] }
|
|
|
|
guard let data = try? Data(contentsOf: storageURL) else {
|
|
quarantine("unreadable")
|
|
return []
|
|
}
|
|
|
|
let decoder = JSONDecoder()
|
|
decoder.dateDecodingStrategy = .custom { decoder in
|
|
let container = try decoder.singleValueContainer()
|
|
let text = try container.decode(String.self)
|
|
guard let date = boardRegistryTimestampFormatter().date(from: text) else {
|
|
throw DecodingError.dataCorruptedError(
|
|
in: container,
|
|
debugDescription: "not an ISO 8601 timestamp: \(text)"
|
|
)
|
|
}
|
|
return date
|
|
}
|
|
|
|
do {
|
|
return try decoder.decode([BoardRecord].self, from: data)
|
|
} catch {
|
|
quarantine(error.localizedDescription)
|
|
return []
|
|
}
|
|
}
|
|
|
|
/// Renames the unreadable file aside so the next save starts clean.
|
|
///
|
|
/// Renamed, never deleted: this file may be the only record of which boards a user had, and a
|
|
/// bug that corrupts it should leave evidence to diagnose rather than a hole. The timestamp
|
|
/// keeps repeat corruptions from overwriting each other; the id suffix covers two in the same
|
|
/// millisecond.
|
|
private func quarantine(_ reason: String) {
|
|
Self.logger.error("board registry is unreadable (\(reason, privacy: .public)); quarantining it")
|
|
|
|
// The timestamp's colons are legal in a path but read as `/` in Finder, so they go.
|
|
let stamp = boardRegistryTimestampFormatter()
|
|
.string(from: Date())
|
|
.replacingOccurrences(of: ":", with: "-")
|
|
let folder = storageURL.deletingLastPathComponent()
|
|
let base = storageURL.deletingPathExtension().lastPathComponent
|
|
let fileExtension = storageURL.pathExtension
|
|
|
|
func destination(_ name: String) -> URL {
|
|
let file = folder.appendingPathComponent(name, isDirectory: false)
|
|
return fileExtension.isEmpty ? file : file.appendingPathExtension(fileExtension)
|
|
}
|
|
|
|
var target = destination("\(base)-corrupt-\(stamp)")
|
|
if FileManager.default.fileExists(atPath: target.path) {
|
|
target = destination("\(base)-corrupt-\(stamp)-\(UUID().uuidString.prefix(8))")
|
|
}
|
|
|
|
do {
|
|
try FileManager.default.moveItem(at: storageURL, to: target)
|
|
} catch {
|
|
// Nothing further to do: the next `save()` overwrites the file atomically anyway, so a
|
|
// failed quarantine costs the evidence, not the registry.
|
|
Self.logger.error("could not quarantine it: \(error.localizedDescription, privacy: .public)")
|
|
}
|
|
}
|
|
}
|