/** * Keybindings - Keybinding configuration service definitions. * * Owns parsing, validation, merge, and persistence of user keybinding * configuration consumed by the server runtime. * * @module Keybindings */import { KeybindingRule, KeybindingsConfig, KeybindingsConfigError, KeybindingShortcut, KeybindingWhenNode, MAX_KEYBINDINGS_COUNT, ResolvedKeybindingRule, ResolvedKeybindingsConfig, type ServerRemoveKeybindingInput, type ServerUpsertKeybindingInput, type ServerConfigIssue,} from "@t3tools/contracts";import * as Array from "effect/Array";import * as Cache from "effect/Cache";import * as Cause from "effect/Cause";import * as Deferred from "effect/Deferred";import * as Duration from "effect/Duration";import * as Effect from "effect/Effect";import * as Exit from "effect/Exit";import * as FileSystem from "effect/FileSystem";import * as Path from "effect/Path";import * as Layer from "effect/Layer";import * as Predicate from "effect/Predicate";import * as PubSub from "effect/PubSub";import * as Result from "effect/Result";import * as Schema from "effect/Schema";import * as SchemaIssue from "effect/SchemaIssue";import * as SchemaTransformation from "effect/SchemaTransformation";import * as Ref from "effect/Ref";import * as Context from "effect/Context";import * as Scope from "effect/Scope";import * as Stream from "effect/Stream";import * as Semaphore from "effect/Semaphore";import * as ServerConfig from "./config.ts";import { writeFileStringAtomically } from "./atomicWrite.ts";import { fromJsonStringPretty, fromLenientJson } from "@t3tools/shared/schemaJson";import { DEFAULT_KEYBINDINGS, DEFAULT_RESOLVED_KEYBINDINGS, compileResolvedKeybindingRule, compileResolvedKeybindingsConfig, parseKeybindingShortcut,} from "@t3tools/shared/keybindings"; export { DEFAULT_KEYBINDINGS, compileResolvedKeybindingRule, compileResolvedKeybindingsConfig, parseKeybindingShortcut,}; export const ResolvedKeybindingFromConfig = KeybindingRule.pipe( Schema.decodeTo( Schema.toType(ResolvedKeybindingRule), SchemaTransformation.transformOrFail({ decode: (rule) => Effect.succeed(compileResolvedKeybindingRule(rule)).pipe( Effect.filterOrFail( Predicate.isNotNull, () => new SchemaIssue.InvalidValue({ message: "Invalid keybinding rule", }), ), Effect.map((resolved) => resolved), ), encode: (resolved) => Effect.gen(function* () { const key = encodeShortcut(resolved.shortcut); if (!key) { return yield* Effect.fail( new SchemaIssue.InvalidValue({ message: "Resolved shortcut cannot be encoded to key string", }), ); } const when = resolved.whenAst ? encodeWhenAst(resolved.whenAst) : undefined; return { key, command: resolved.command, when, }; }), }), ),); function isSameKeybindingRule(left: KeybindingRule, right: KeybindingRule): boolean { return ( left.command === right.command && left.key === right.key && (left.when ?? undefined) === (right.when ?? undefined) );} function keybindingShortcutContext(rule: KeybindingRule): string | null { const parsed = parseKeybindingShortcut(rule.key); if (!parsed) return null; const encoded = encodeShortcut(parsed); if (!encoded) return null; return `${encoded}\u0000${rule.when ?? ""}`;} function hasSameShortcutContext(left: KeybindingRule, right: KeybindingRule): boolean { const leftContext = keybindingShortcutContext(left); const rightContext = keybindingShortcutContext(right); if (!leftContext || !rightContext) return false; return leftContext === rightContext;} function keybindingRuleFromUpsertInput(input: ServerUpsertKeybindingInput): KeybindingRule { return input.when === undefined ? { key: input.key, command: input.command } : { key: input.key, command: input.command, when: input.when };} function replaceTargetFromUpsertInput(input: ServerUpsertKeybindingInput): KeybindingRule | null { if (!input.replace) return null; return input.replace.when === undefined ? { key: input.replace.key, command: input.replace.command } : { key: input.replace.key, command: input.replace.command, when: input.replace.when };} function keybindingRuleFromRemoveInput(input: ServerRemoveKeybindingInput): KeybindingRule { return input.when === undefined ? { key: input.key, command: input.command } : { key: input.key, command: input.command, when: input.when };} function encodeShortcut(shortcut: KeybindingShortcut): string | null { const modifiers: string[] = []; if (shortcut.modKey) modifiers.push("mod"); if (shortcut.metaKey) modifiers.push("meta"); if (shortcut.ctrlKey) modifiers.push("ctrl"); if (shortcut.altKey) modifiers.push("alt"); if (shortcut.shiftKey) modifiers.push("shift"); if (!shortcut.key) return null; if (shortcut.key !== "+" && shortcut.key.includes("+")) return null; const key = shortcut.key === " " ? "space" : shortcut.key; return [...modifiers, key].join("+");} function encodeWhenAst(node: KeybindingWhenNode): string { switch (node.type) { case "identifier": return node.name; case "not": return `!(${encodeWhenAst(node.node)})`; case "and": return `(${encodeWhenAst(node.left)} && ${encodeWhenAst(node.right)})`; case "or": return `(${encodeWhenAst(node.left)} || ${encodeWhenAst(node.right)})`; }} const RawKeybindingsEntries = fromLenientJson(Schema.Array(Schema.Unknown));const KeybindingsConfigPrettyJson = fromJsonStringPretty(KeybindingsConfig);const decodeKeybindingRuleExit = Schema.decodeUnknownExit(KeybindingRule);const decodeResolvedKeybindingFromConfigExit = Schema.decodeExit(ResolvedKeybindingFromConfig);const decodeRawKeybindingsEntriesExit = Schema.decodeUnknownExit(RawKeybindingsEntries);const encodeKeybindingsConfigPrettyJson = Schema.encodeEffect(KeybindingsConfigPrettyJson); export interface KeybindingsConfigState { readonly keybindings: ResolvedKeybindingsConfig; readonly issues: readonly ServerConfigIssue[];} export interface KeybindingsChangeEvent { readonly keybindings: ResolvedKeybindingsConfig; readonly issues: readonly ServerConfigIssue[];} function trimIssueMessage(message: string): string { const trimmed = message.trim(); return trimmed.length > 0 ? trimmed : "Invalid keybindings configuration.";} function malformedConfigIssue(detail: string): ServerConfigIssue { return { kind: "keybindings.malformed-config", message: trimIssueMessage(detail), };} function invalidEntryIssue(index: number, detail: string): ServerConfigIssue { return { kind: "keybindings.invalid-entry", index, message: trimIssueMessage(detail), };} function mergeWithDefaultKeybindings(custom: ResolvedKeybindingsConfig): ResolvedKeybindingsConfig { if (custom.length === 0) { return [...DEFAULT_RESOLVED_KEYBINDINGS]; } const overriddenCommands = new Set(custom.map((binding) => binding.command)); const retainedDefaults = DEFAULT_RESOLVED_KEYBINDINGS.filter( (binding) => !overriddenCommands.has(binding.command), ); const merged = [...retainedDefaults, ...custom]; if (merged.length <= MAX_KEYBINDINGS_COUNT) { return merged; } // Keep the latest rules when the config exceeds max size; later rules have higher precedence. return merged.slice(-MAX_KEYBINDINGS_COUNT);} /** * Keybindings - Service tag for keybinding configuration operations. */export class Keybindings extends Context.Service< Keybindings, { /** * Start the keybindings runtime and attach file watching. * * Safe to call multiple times. The first successful call establishes the * runtime; later calls await the same startup. */ readonly start: Effect.Effect<void, KeybindingsConfigError>; /** * Await keybindings runtime readiness. * * Readiness means the config directory exists, the watcher is attached, the * startup sync has completed, and the current snapshot has been loaded. */ readonly ready: Effect.Effect<void, KeybindingsConfigError>; /** * Ensure the on-disk keybindings file exists and includes all default * commands so newly-added defaults are backfilled on startup. */ readonly syncDefaultKeybindingsOnStartup: Effect.Effect<void, KeybindingsConfigError>; /** * Load runtime keybindings state along with non-fatal configuration issues. */ readonly loadConfigState: Effect.Effect<KeybindingsConfigState, KeybindingsConfigError>; /** * Read the latest keybindings snapshot from cache/disk. */ readonly getSnapshot: Effect.Effect<KeybindingsConfigState, KeybindingsConfigError>; /** * Stream of keybindings config change events. */ readonly streamChanges: Stream.Stream<KeybindingsChangeEvent>; /** * Upsert a keybinding rule and persist the resulting configuration. * * Writes config atomically and enforces the max rule count by truncating * oldest entries when needed. */ readonly upsertKeybindingRule: ( input: ServerUpsertKeybindingInput, ) => Effect.Effect<ResolvedKeybindingsConfig, KeybindingsConfigError>; /** * Remove a single persisted keybinding rule by exact key/command/when match. */ readonly removeKeybindingRule: ( input: ServerRemoveKeybindingInput, ) => Effect.Effect<ResolvedKeybindingsConfig, KeybindingsConfigError>; }>()("t3/keybindings") {} const make = Effect.gen(function* () { const { keybindingsConfigPath } = yield* ServerConfig.ServerConfig; const fs = yield* FileSystem.FileSystem; const path = yield* Path.Path; const upsertSemaphore = yield* Semaphore.make(1); const resolvedConfigCacheKey = "resolved" as const; const changesPubSub = yield* PubSub.unbounded<KeybindingsChangeEvent>(); const startedRef = yield* Ref.make(false); const startedDeferred = yield* Deferred.make<void, KeybindingsConfigError>(); const watcherScope = yield* Scope.make("sequential"); yield* Effect.addFinalizer(() => Scope.close(watcherScope, Exit.void)); const emitChange = (configState: KeybindingsConfigState) => PubSub.publish(changesPubSub, configState).pipe(Effect.asVoid); const readConfigExists = fs.exists(keybindingsConfigPath).pipe( Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to access keybindings config", cause, }), ), ); const readRawConfig = fs.readFileString(keybindingsConfigPath).pipe( Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to read keybindings config", cause, }), ), ); const loadWritableCustomKeybindingsConfig = Effect.fn(function* (): Effect.fn.Return< readonly KeybindingRule[], KeybindingsConfigError > { if (!(yield* readConfigExists)) { return []; } const rawConfig = yield* readRawConfig.pipe( Effect.flatMap(Schema.decodeEffect(RawKeybindingsEntries)), Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "expected JSON array", cause, }), ), ); return yield* Effect.forEach(rawConfig, (entry) => Effect.gen(function* () { const decodedRule = decodeKeybindingRuleExit(entry); if (decodedRule._tag === "Failure") { yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, entry, error: Cause.pretty(decodedRule.cause), }); return null; } const resolved = decodeResolvedKeybindingFromConfigExit(decodedRule.value); if (resolved._tag === "Failure") { yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, entry, error: Cause.pretty(resolved.cause), }); return null; } return decodedRule.value; }), ).pipe(Effect.map(Array.filter(Predicate.isNotNull))); }); const loadRuntimeCustomKeybindingsConfig = Effect.fn(function* (): Effect.fn.Return< { readonly keybindings: readonly KeybindingRule[]; readonly issues: readonly ServerConfigIssue[]; }, KeybindingsConfigError > { if (!(yield* readConfigExists)) { return { keybindings: [], issues: [] }; } const rawConfig = yield* readRawConfig; const decodedEntries = decodeRawKeybindingsEntriesExit(rawConfig); if (decodedEntries._tag === "Failure") { const detail = `expected JSON array (${Cause.pretty(decodedEntries.cause)})`; return { keybindings: [], issues: [malformedConfigIssue(detail)], }; } const keybindings: KeybindingRule[] = []; const issues: ServerConfigIssue[] = []; for (const [index, entry] of decodedEntries.value.entries()) { const decodedRule = decodeKeybindingRuleExit(entry); if (decodedRule._tag === "Failure") { const detail = Cause.pretty(decodedRule.cause); issues.push(invalidEntryIssue(index, detail)); yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, index, entry, error: detail, }); continue; } const resolvedRule = decodeResolvedKeybindingFromConfigExit(decodedRule.value); if (resolvedRule._tag === "Failure") { const detail = Cause.pretty(resolvedRule.cause); issues.push(invalidEntryIssue(index, detail)); yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, index, entry, error: detail, }); continue; } keybindings.push(decodedRule.value); } return { keybindings, issues }; }); const writeConfigAtomically = (rules: readonly KeybindingRule[]) => { return encodeKeybindingsConfigPrettyJson(rules).pipe( Effect.map((encoded) => `${encoded}\n`), Effect.flatMap((encoded) => writeFileStringAtomically({ filePath: keybindingsConfigPath, contents: encoded, }).pipe( Effect.provideService(FileSystem.FileSystem, fs), Effect.provideService(Path.Path, path), ), ), Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to write keybindings config", cause, }), ), ); }; const loadConfigStateFromDisk = loadRuntimeCustomKeybindingsConfig().pipe( Effect.map(({ keybindings, issues }) => ({ keybindings: mergeWithDefaultKeybindings(compileResolvedKeybindingsConfig(keybindings)), issues, })), ); const resolvedConfigCache = yield* Cache.make< typeof resolvedConfigCacheKey, KeybindingsConfigState, KeybindingsConfigError >({ capacity: 1, lookup: () => loadConfigStateFromDisk, }); const loadConfigStateFromCacheOrDisk = Cache.get(resolvedConfigCache, resolvedConfigCacheKey); const revalidateAndEmit = upsertSemaphore.withPermits(1)( Effect.gen(function* () { yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); const configState = yield* loadConfigStateFromCacheOrDisk; yield* emitChange(configState); }), ); const syncDefaultKeybindingsOnStartup = upsertSemaphore.withPermits(1)( Effect.gen(function* () { const configExists = yield* readConfigExists; if (!configExists) { yield* writeConfigAtomically(DEFAULT_KEYBINDINGS); yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); return; } const runtimeConfig = yield* loadRuntimeCustomKeybindingsConfig(); if (runtimeConfig.issues.length > 0) { yield* Effect.logWarning( "skipping startup keybindings default sync because config has issues", { path: keybindingsConfigPath, issues: runtimeConfig.issues, }, ); yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); return; } const customConfig = runtimeConfig.keybindings; const existingCommands = new Set(customConfig.map((entry) => entry.command)); const missingDefaults: KeybindingRule[] = []; const shortcutConflictWarnings: Array<{ defaultCommand: KeybindingRule["command"]; conflictingCommand: KeybindingRule["command"]; key: string; when: string | null; }> = []; for (const defaultRule of DEFAULT_KEYBINDINGS) {Lines 1–500 of 704. 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/** * Keybindings - Keybinding configuration service definitions. * * Owns parsing, validation, merge, and persistence of user keybinding * configuration consumed by the server runtime. * * @module Keybindings */ import { KeybindingRule, KeybindingsConfig, KeybindingsConfigError, KeybindingShortcut, KeybindingWhenNode, MAX_KEYBINDINGS_COUNT, ResolvedKeybindingRule, ResolvedKeybindingsConfig, type ServerRemoveKeybindingInput, type ServerUpsertKeybindingInput, type ServerConfigIssue, } from "@t3tools/contracts"; import * as Array from "effect/Array"; import * as Cache from "effect/Cache"; import * as Cause from "effect/Cause"; import * as Deferred from "effect/Deferred"; import * as Duration from "effect/Duration"; import * as Effect from "effect/Effect"; import * as Exit from "effect/Exit"; import * as FileSystem from "effect/FileSystem"; import * as Path from "effect/Path"; import * as Layer from "effect/Layer"; import * as Predicate from "effect/Predicate"; import * as PubSub from "effect/PubSub"; import * as Result from "effect/Result"; import * as Schema from "effect/Schema"; import * as SchemaIssue from "effect/SchemaIssue"; import * as SchemaTransformation from "effect/SchemaTransformation"; import * as Ref from "effect/Ref"; import * as Context from "effect/Context"; import * as Scope from "effect/Scope"; import * as Stream from "effect/Stream"; import * as Semaphore from "effect/Semaphore"; import * as ServerConfig from "./config.ts"; import { writeFileStringAtomically } from "./atomicWrite.ts"; import { fromJsonStringPretty, fromLenientJson } from "@t3tools/shared/schemaJson"; import { DEFAULT_KEYBINDINGS, DEFAULT_RESOLVED_KEYBINDINGS, compileResolvedKeybindingRule, compileResolvedKeybindingsConfig, parseKeybindingShortcut, } from "@t3tools/shared/keybindings"; export { DEFAULT_KEYBINDINGS, compileResolvedKeybindingRule, compileResolvedKeybindingsConfig, parseKeybindingShortcut, }; export const ResolvedKeybindingFromConfig = KeybindingRule.pipe( Schema.decodeTo( Schema.toType(ResolvedKeybindingRule), SchemaTransformation.transformOrFail({ decode: (rule) => Effect.succeed(compileResolvedKeybindingRule(rule)).pipe( Effect.filterOrFail( Predicate.isNotNull, () => new SchemaIssue.InvalidValue({ message: "Invalid keybinding rule", }), ), Effect.map((resolved) => resolved), ), encode: (resolved) => Effect.gen(function* () { const key = encodeShortcut(resolved.shortcut); if (!key) { return yield* Effect.fail( new SchemaIssue.InvalidValue({ message: "Resolved shortcut cannot be encoded to key string", }), ); } const when = resolved.whenAst ? encodeWhenAst(resolved.whenAst) : undefined; return { key, command: resolved.command, when, }; }), }), ), ); function isSameKeybindingRule(left: KeybindingRule, right: KeybindingRule): boolean { return ( left.command === right.command && left.key === right.key && (left.when ?? undefined) === (right.when ?? undefined) ); } function keybindingShortcutContext(rule: KeybindingRule): string | null { const parsed = parseKeybindingShortcut(rule.key); if (!parsed) return null; const encoded = encodeShortcut(parsed); if (!encoded) return null; return `${encoded}\u0000${rule.when ?? ""}`; } function hasSameShortcutContext(left: KeybindingRule, right: KeybindingRule): boolean { const leftContext = keybindingShortcutContext(left); const rightContext = keybindingShortcutContext(right); if (!leftContext || !rightContext) return false; return leftContext === rightContext; } function keybindingRuleFromUpsertInput(input: ServerUpsertKeybindingInput): KeybindingRule { return input.when === undefined ? { key: input.key, command: input.command } : { key: input.key, command: input.command, when: input.when }; } function replaceTargetFromUpsertInput(input: ServerUpsertKeybindingInput): KeybindingRule | null { if (!input.replace) return null; return input.replace.when === undefined ? { key: input.replace.key, command: input.replace.command } : { key: input.replace.key, command: input.replace.command, when: input.replace.when }; } function keybindingRuleFromRemoveInput(input: ServerRemoveKeybindingInput): KeybindingRule { return input.when === undefined ? { key: input.key, command: input.command } : { key: input.key, command: input.command, when: input.when }; } function encodeShortcut(shortcut: KeybindingShortcut): string | null { const modifiers: string[] = []; if (shortcut.modKey) modifiers.push("mod"); if (shortcut.metaKey) modifiers.push("meta"); if (shortcut.ctrlKey) modifiers.push("ctrl"); if (shortcut.altKey) modifiers.push("alt"); if (shortcut.shiftKey) modifiers.push("shift"); if (!shortcut.key) return null; if (shortcut.key !== "+" && shortcut.key.includes("+")) return null; const key = shortcut.key === " " ? "space" : shortcut.key; return [...modifiers, key].join("+"); } function encodeWhenAst(node: KeybindingWhenNode): string { switch (node.type) { case "identifier": return node.name; case "not": return `!(${encodeWhenAst(node.node)})`; case "and": return `(${encodeWhenAst(node.left)} && ${encodeWhenAst(node.right)})`; case "or": return `(${encodeWhenAst(node.left)} || ${encodeWhenAst(node.right)})`; } } const RawKeybindingsEntries = fromLenientJson(Schema.Array(Schema.Unknown)); const KeybindingsConfigPrettyJson = fromJsonStringPretty(KeybindingsConfig); const decodeKeybindingRuleExit = Schema.decodeUnknownExit(KeybindingRule); const decodeResolvedKeybindingFromConfigExit = Schema.decodeExit(ResolvedKeybindingFromConfig); const decodeRawKeybindingsEntriesExit = Schema.decodeUnknownExit(RawKeybindingsEntries); const encodeKeybindingsConfigPrettyJson = Schema.encodeEffect(KeybindingsConfigPrettyJson); export interface KeybindingsConfigState { readonly keybindings: ResolvedKeybindingsConfig; readonly issues: readonly ServerConfigIssue[]; } export interface KeybindingsChangeEvent { readonly keybindings: ResolvedKeybindingsConfig; readonly issues: readonly ServerConfigIssue[]; } function trimIssueMessage(message: string): string { const trimmed = message.trim(); return trimmed.length > 0 ? trimmed : "Invalid keybindings configuration."; } function malformedConfigIssue(detail: string): ServerConfigIssue { return { kind: "keybindings.malformed-config", message: trimIssueMessage(detail), }; } function invalidEntryIssue(index: number, detail: string): ServerConfigIssue { return { kind: "keybindings.invalid-entry", index, message: trimIssueMessage(detail), }; } function mergeWithDefaultKeybindings(custom: ResolvedKeybindingsConfig): ResolvedKeybindingsConfig { if (custom.length === 0) { return [...DEFAULT_RESOLVED_KEYBINDINGS]; } const overriddenCommands = new Set(custom.map((binding) => binding.command)); const retainedDefaults = DEFAULT_RESOLVED_KEYBINDINGS.filter( (binding) => !overriddenCommands.has(binding.command), ); const merged = [...retainedDefaults, ...custom]; if (merged.length <= MAX_KEYBINDINGS_COUNT) { return merged; } // Keep the latest rules when the config exceeds max size; later rules have higher precedence. return merged.slice(-MAX_KEYBINDINGS_COUNT); } /** * Keybindings - Service tag for keybinding configuration operations. */ export class Keybindings extends Context.Service< Keybindings, { /** * Start the keybindings runtime and attach file watching. * * Safe to call multiple times. The first successful call establishes the * runtime; later calls await the same startup. */ readonly start: Effect.Effect<void, KeybindingsConfigError>; /** * Await keybindings runtime readiness. * * Readiness means the config directory exists, the watcher is attached, the * startup sync has completed, and the current snapshot has been loaded. */ readonly ready: Effect.Effect<void, KeybindingsConfigError>; /** * Ensure the on-disk keybindings file exists and includes all default * commands so newly-added defaults are backfilled on startup. */ readonly syncDefaultKeybindingsOnStartup: Effect.Effect<void, KeybindingsConfigError>; /** * Load runtime keybindings state along with non-fatal configuration issues. */ readonly loadConfigState: Effect.Effect<KeybindingsConfigState, KeybindingsConfigError>; /** * Read the latest keybindings snapshot from cache/disk. */ readonly getSnapshot: Effect.Effect<KeybindingsConfigState, KeybindingsConfigError>; /** * Stream of keybindings config change events. */ readonly streamChanges: Stream.Stream<KeybindingsChangeEvent>; /** * Upsert a keybinding rule and persist the resulting configuration. * * Writes config atomically and enforces the max rule count by truncating * oldest entries when needed. */ readonly upsertKeybindingRule: ( input: ServerUpsertKeybindingInput, ) => Effect.Effect<ResolvedKeybindingsConfig, KeybindingsConfigError>; /** * Remove a single persisted keybinding rule by exact key/command/when match. */ readonly removeKeybindingRule: ( input: ServerRemoveKeybindingInput, ) => Effect.Effect<ResolvedKeybindingsConfig, KeybindingsConfigError>; } >()("t3/keybindings") {} const make = Effect.gen(function* () { const { keybindingsConfigPath } = yield* ServerConfig.ServerConfig; const fs = yield* FileSystem.FileSystem; const path = yield* Path.Path; const upsertSemaphore = yield* Semaphore.make(1); const resolvedConfigCacheKey = "resolved" as const; const changesPubSub = yield* PubSub.unbounded<KeybindingsChangeEvent>(); const startedRef = yield* Ref.make(false); const startedDeferred = yield* Deferred.make<void, KeybindingsConfigError>(); const watcherScope = yield* Scope.make("sequential"); yield* Effect.addFinalizer(() => Scope.close(watcherScope, Exit.void)); const emitChange = (configState: KeybindingsConfigState) => PubSub.publish(changesPubSub, configState).pipe(Effect.asVoid); const readConfigExists = fs.exists(keybindingsConfigPath).pipe( Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to access keybindings config", cause, }), ), ); const readRawConfig = fs.readFileString(keybindingsConfigPath).pipe( Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to read keybindings config", cause, }), ), ); const loadWritableCustomKeybindingsConfig = Effect.fn(function* (): Effect.fn.Return< readonly KeybindingRule[], KeybindingsConfigError > { if (!(yield* readConfigExists)) { return []; } const rawConfig = yield* readRawConfig.pipe( Effect.flatMap(Schema.decodeEffect(RawKeybindingsEntries)), Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "expected JSON array", cause, }), ), ); return yield* Effect.forEach(rawConfig, (entry) => Effect.gen(function* () { const decodedRule = decodeKeybindingRuleExit(entry); if (decodedRule._tag === "Failure") { yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, entry, error: Cause.pretty(decodedRule.cause), }); return null; } const resolved = decodeResolvedKeybindingFromConfigExit(decodedRule.value); if (resolved._tag === "Failure") { yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, entry, error: Cause.pretty(resolved.cause), }); return null; } return decodedRule.value; }), ).pipe(Effect.map(Array.filter(Predicate.isNotNull))); }); const loadRuntimeCustomKeybindingsConfig = Effect.fn(function* (): Effect.fn.Return< { readonly keybindings: readonly KeybindingRule[]; readonly issues: readonly ServerConfigIssue[]; }, KeybindingsConfigError > { if (!(yield* readConfigExists)) { return { keybindings: [], issues: [] }; } const rawConfig = yield* readRawConfig; const decodedEntries = decodeRawKeybindingsEntriesExit(rawConfig); if (decodedEntries._tag === "Failure") { const detail = `expected JSON array (${Cause.pretty(decodedEntries.cause)})`; return { keybindings: [], issues: [malformedConfigIssue(detail)], }; } const keybindings: KeybindingRule[] = []; const issues: ServerConfigIssue[] = []; for (const [index, entry] of decodedEntries.value.entries()) { const decodedRule = decodeKeybindingRuleExit(entry); if (decodedRule._tag === "Failure") { const detail = Cause.pretty(decodedRule.cause); issues.push(invalidEntryIssue(index, detail)); yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, index, entry, error: detail, }); continue; } const resolvedRule = decodeResolvedKeybindingFromConfigExit(decodedRule.value); if (resolvedRule._tag === "Failure") { const detail = Cause.pretty(resolvedRule.cause); issues.push(invalidEntryIssue(index, detail)); yield* Effect.logWarning("ignoring invalid keybinding entry", { path: keybindingsConfigPath, index, entry, error: detail, }); continue; } keybindings.push(decodedRule.value); } return { keybindings, issues }; }); const writeConfigAtomically = (rules: readonly KeybindingRule[]) => { return encodeKeybindingsConfigPrettyJson(rules).pipe( Effect.map((encoded) => `${encoded}\n`), Effect.flatMap((encoded) => writeFileStringAtomically({ filePath: keybindingsConfigPath, contents: encoded, }).pipe( Effect.provideService(FileSystem.FileSystem, fs), Effect.provideService(Path.Path, path), ), ), Effect.mapError( (cause) => new KeybindingsConfigError({ configPath: keybindingsConfigPath, detail: "failed to write keybindings config", cause, }), ), ); }; const loadConfigStateFromDisk = loadRuntimeCustomKeybindingsConfig().pipe( Effect.map(({ keybindings, issues }) => ({ keybindings: mergeWithDefaultKeybindings(compileResolvedKeybindingsConfig(keybindings)), issues, })), ); const resolvedConfigCache = yield* Cache.make< typeof resolvedConfigCacheKey, KeybindingsConfigState, KeybindingsConfigError >({ capacity: 1, lookup: () => loadConfigStateFromDisk, }); const loadConfigStateFromCacheOrDisk = Cache.get(resolvedConfigCache, resolvedConfigCacheKey); const revalidateAndEmit = upsertSemaphore.withPermits(1)( Effect.gen(function* () { yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); const configState = yield* loadConfigStateFromCacheOrDisk; yield* emitChange(configState); }), ); const syncDefaultKeybindingsOnStartup = upsertSemaphore.withPermits(1)( Effect.gen(function* () { const configExists = yield* readConfigExists; if (!configExists) { yield* writeConfigAtomically(DEFAULT_KEYBINDINGS); yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); return; } const runtimeConfig = yield* loadRuntimeCustomKeybindingsConfig(); if (runtimeConfig.issues.length > 0) { yield* Effect.logWarning( "skipping startup keybindings default sync because config has issues", { path: keybindingsConfigPath, issues: runtimeConfig.issues, }, ); yield* Cache.invalidate(resolvedConfigCache, resolvedConfigCacheKey); return; } const customConfig = runtimeConfig.keybindings; const existingCommands = new Set(customConfig.map((entry) => entry.command)); const missingDefaults: KeybindingRule[] = []; const shortcutConflictWarnings: Array<{ defaultCommand: KeybindingRule["command"]; conflictingCommand: KeybindingRule["command"]; key: string; when: string | null; }> = []; for (const defaultRule of DEFAULT_KEYBINDINGS) {