[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10,"_11":12},"actionData","errors","root",{"_228":-5,"_231":232,"_233":234},"routes/shell",{"_40":41,"_227":-5,"_228":-5,"_229":230},"routes/repo",{"_33":-7,"_34":35,"_36":37,"_38":39,"_40":41,"_42":31,"_43":31,"_44":31,"_45":31,"_46":31,"_47":31,"_48":49,"_50":49,"_51":31,"_52":-7,"_53":-7,"_54":55,"_56":57,"_58":59,"_60":-5,"_61":62,"_63":64,"_65":66,"_67":68},"routes/repo.blob",{"_13":14,"_15":16,"_17":18,"_19":20,"_21":14,"_22":23,"_24":-5,"_25":26,"_27":28,"_28":29,"_30":31,"_32":14},"ref","5ecfaa2fe5bda239b33f09076a49792d4cc04dec","path","apps/web/src/research-requests.ts","oid","4b36f31f15fc7ed7e85f2caf7a88e8a9d8eba32b","size",9609,"commit","mounts",[],"source","plain",{"_13":14,"_15":16},"kind","text","import type { Research } from \"@chopin/protocol\";\nimport type { ResearchOpener, ResearchStore } from \"@chopin/editor\";\n\nimport { response } from \"./api\";\n\nconst POLL_INTERVAL = 2_000;\n\nfunction researchRequestPath(channelId: string, requestId?: string): string {\n\tlet path = `/api/channels/${encodeURIComponent(channelId)}/research-requests`;\n\treturn requestId ? `${path}/${encodeURIComponent(requestId)}` : path;\n}\n\nexport function createResearchRequest(\n\tchannelId: string,\n\tquestion: string,\n\trequestId: string,\n): Promise<{ request: Research.RequestView; repeated: boolean }> {\n\treturn response(researchRequestPath(channelId), {\n\t\tmethod: \"POST\",\n\t\theaders: { \"content-type\": \"application/json\" },\n\t\tbody: JSON.stringify({ question, requestId }),\n\t});\n}\n\nexport function researchRequest(\n\tchannelId: string,\n\trequestId: string,\n\tsignal?: AbortSignal,\n): Promise {\n\treturn response(researchRequestPath(channelId, requestId), { signal });\n}\n\nexport function cancelResearchRequest(\n\tchannelId: string,\n\trequestId: string,\n): Promise {\n\treturn response(`${researchRequestPath(channelId, requestId)}/cancel`, { method: \"POST\" });\n}\n\nexport function retryResearchRequest(\n\tchannelId: string,\n\trequestId: string,\n): Promise {\n\treturn response(`${researchRequestPath(channelId, requestId)}/retry`, { method: \"POST\" });\n}\n\nexport type ResearchRequestApi = {\n\tcreate(\n\t\tchannelId: string,\n\t\tquestion: string,\n\t\trequestId: string,\n\t): Promise<{ request: Research.RequestView; repeated: boolean }>;\n\tget(channelId: string, requestId: string, signal?: AbortSignal): Promise;\n\tcancel(channelId: string, requestId: string): Promise;\n\tretry(channelId: string, requestId: string): Promise;\n};\n\nexport type ResearchRequestSchedule = (callback: () => void, delay: number) => () => void;\n\nexport type ResearchRequestStoreOptions = {\n\tapi?: ResearchRequestApi;\n\tchannelId: string;\n\tonOpen: (child: Research.ReadyChild, opener: ResearchOpener) => void;\n\tonPublished?: (child: Research.ReadyChild) => void;\n\tschedule?: ResearchRequestSchedule;\n};\n\nlet browserApi: ResearchRequestApi = {\n\tcancel: cancelResearchRequest,\n\tcreate: createResearchRequest,\n\tget: researchRequest,\n\tretry: retryResearchRequest,\n};\n\nlet browserSchedule: ResearchRequestSchedule = (callback, delay) => {\n\tlet timer = setTimeout(callback, delay);\n\treturn () => clearTimeout(timer);\n};\n\ntype Read = {\n\tcontroller: AbortController;\n\tgeneration: number;\n};\n\ntype Acceptance = \"mutation\" | \"observation\" | \"retry\";\n\nconst TERMINAL_STAGES = new Set([\"ready\", \"failed\", \"cancelled\"]);\n\nexport class ResearchRequestStore implements ResearchStore {\n\t#api: ResearchRequestApi;\n\t#channelId: string;\n\t#cancelPoll?: () => void;\n\t#disposed = false;\n\t#generations = new Map();\n\t#listeners = new Set<() => void>();\n\t#mutations = new Map();\n\t#onOpen: (child: Research.ReadyChild, opener: ResearchOpener) => void;\n\t#onPublished: (child: Research.ReadyChild) => void;\n\t#openers = new Map();\n\t#published = new Set();\n\t#reads = new Map();\n\t#references = new Map();\n\t#schedule: ResearchRequestSchedule;\n\t#snapshots = new Map();\n\n\tconstructor(options: ResearchRequestStoreOptions) {\n\t\tthis.#api = options.api ?? browserApi;\n\t\tthis.#channelId = options.channelId;\n\t\tthis.#onOpen = options.onOpen;\n\t\tthis.#onPublished = options.onPublished ?? (() => {});\n\t\tthis.#schedule = options.schedule ?? browserSchedule;\n\t}\n\n\tsubscribe(listener: () => void): () => void {\n\t\tif (this.#disposed) return () => {};\n\t\tthis.#listeners.add(listener);\n\t\tthis.#schedulePolling();\n\t\treturn () => {\n\t\t\tthis.#listeners.delete(listener);\n\t\t\tthis.#schedulePolling();\n\t\t};\n\t}\n\n\tretain(id: string): () => void {\n\t\tif (this.#disposed) return () => {};\n\t\tthis.#references.set(id, (this.#references.get(id) ?? 0) + 1);\n\t\tvoid this.#load(id);\n\t\tlet retained = true;\n\t\treturn () => {\n\t\t\tif (!retained) return;\n\t\t\tretained = false;\n\t\t\tlet remaining = (this.#references.get(id) ?? 1) - 1;\n\t\t\tif (remaining > 0) {\n\t\t\t\tthis.#references.set(id, remaining);\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tthis.#references.delete(id);\n\t\t\tthis.#snapshots.delete(id);\n\t\t\tthis.#reads.get(id)?.controller.abort();\n\t\t\tthis.#reads.delete(id);\n\t\t\tthis.#schedulePolling();\n\t\t};\n\t}\n\n\tget(id: string): Research.RequestView | undefined {\n\t\treturn this.#snapshots.get(id);\n\t}\n\n\tmutating(id: string): boolean {\n\t\treturn (this.#mutations.get(id) ?? 0) > 0;\n\t}\n\n\trefresh(id: string): void {\n\t\tif (this.#disposed) return;\n\t\tvoid this.#load(id);\n\t}\n\tasync create(question: string, requestId: string): Promise {\n\t\tthis.#assertAvailable();\n\t\tlet result = await this.#api.create(this.#channelId, question, requestId);\n\t\treturn this.#accept(result.request.id, result.request);\n\t}\n\n\tasync cancel(id: string): Promise {\n\t\tthis.#assertAvailable();\n\t\tlet result = await this.#api.cancel(this.#channelId, id);\n\t\treturn this.#accept(id, result);\n\t}\n\n\tasync retry(id: string): Promise {\n\t\tthis.#assertAvailable();\n\t\tthis.#beginMutation(id);\n\t\ttry {\n\t\t\tlet result = await this.#api.retry(this.#channelId, id);\n\t\t\tthis.#fenceRead(id);\n\t\t\treturn this.#accept(id, result, \"retry\");\n\t\t} finally {\n\t\t\tthis.#endMutation(id);\n\t\t}\n\t}\n\n\topen(child: Research.ReadyChild, opener: ResearchOpener): void {\n\t\tthis.#onOpen(child, opener);\n\t}\n\n\topener(id: string, current?: HTMLElement | null): ResearchOpener {\n\t\tlet opener = this.#openers.get(id);\n\t\tif (!opener) {\n\t\t\topener = { current: null };\n\t\t\tthis.#openers.set(id, opener);\n\t\t}\n\t\tif (current !== undefined) opener.current = current;\n\t\treturn opener;\n\t}\n\n\tinvalidate(id: string): void {\n\t\tif (this.#disposed || !this.#references.has(id)) return;\n\t\tvoid this.#load(id, true);\n\t}\n\n\t/** Clears mounted observers and work while retaining the durable response cache. */\n\treset(): void {\n\t\tif (this.#disposed) return;\n\t\tthis.#stopPolling();\n\t\tfor (let read of this.#reads.values()) read.controller.abort();\n\t\tthis.#reads.clear();\n\t\tfor (let opener of this.#openers.values()) opener.current = null;\n\t\tthis.#openers.clear();\n\t\tthis.#published.clear();\n\t\tthis.#mutations.clear();\n\t\tthis.#references.clear();\n\t\tthis.#listeners.clear();\n\t\tthis.#snapshots.clear();\n\t}\n\n\tdispose(): void {\n\t\tif (this.#disposed) return;\n\t\tthis.reset();\n\t\tthis.#disposed = true;\n\t}\n\n\t#accept(\n\t\tid: string,\n\t\tsnapshot: Research.RequestView,\n\t\tacceptance: Acceptance = \"mutation\",\n\t): Research.RequestView {\n\t\tif (snapshot.id !== id || snapshot.channelId !== this.#channelId) {\n\t\t\tthrow new Error(\"Research request response did not match its document reference.\");\n\t\t}\n\t\tif (this.#disposed) return snapshot;\n\t\tlet previous = this.#snapshots.get(id);\n\t\tif (\n\t\t\tprevious && TERMINAL_STAGES.has(previous.stage)\n\t\t\t&& (acceptance !== \"retry\" || previous.stage === \"ready\")\n\t\t) return previous;\n\t\tthis.#snapshots.set(id, snapshot);\n\t\tif (\n\t\t\tprevious && !previous.child && snapshot.stage === \"ready\" && snapshot.child\n\t\t\t&& !this.#published.has(id)\n\t\t) {\n\t\t\tthis.#published.add(id);\n\t\t\tthis.#onPublished(snapshot.child);\n\t\t}\n\t\tthis.#notify();\n\t\tthis.#schedulePolling();\n\t\treturn snapshot;\n\t}\n\n\t#beginMutation(id: string): void {\n\t\tif (this.#disposed) return;\n\t\tthis.#mutations.set(id, (this.#mutations.get(id) ?? 0) + 1);\n\t\tthis.#notify();\n\t}\n\n\t#endMutation(id: string): void {\n\t\tif (this.#disposed) return;\n\t\tlet remaining = (this.#mutations.get(id) ?? 1) - 1;\n\t\tif (remaining > 0) this.#mutations.set(id, remaining);\n\t\telse this.#mutations.delete(id);\n\t\tthis.#notify();\n\t}\n\n\t#notify(): void {\n\t\tfor (let listener of this.#listeners) listener();\n\t}\n\n\tasync #load(id: string, replace = false): Promise {\n\t\tlet active = this.#reads.get(id);\n\t\tif (active && !replace) return;\n\t\tif (active) active.controller.abort();\n\t\tlet controller = new AbortController();\n\t\tlet generation = (this.#generations.get(id) ?? 0) + 1;\n\t\tthis.#generations.set(id, generation);\n\t\tlet read = { controller, generation };\n\t\tthis.#reads.set(id, read);\n\t\ttry {\n\t\t\tlet snapshot = await this.#api.get(this.#channelId, id, controller.signal);\n\t\t\tlet current = this.#reads.get(id);\n\t\t\tif (\n\t\t\t\tthis.#disposed || controller.signal.aborted\n\t\t\t\t|| current !== read || current.generation !== generation\n\t\t\t) return;\n\t\t\tthis.#accept(id, snapshot, \"observation\");\n\t\t} catch {\n\t\t\t// Refresh failures leave the last durable snapshot visible. Polling or\n\t\t\t// the next socket invalidation can retry the observational read.\n\t\t} finally {\n\t\t\tif (this.#reads.get(id) === read) this.#reads.delete(id);\n\t\t\tthis.#schedulePolling();\n\t\t}\n\t}\n\n\t#fenceRead(id: string): void {\n\t\tlet active = this.#reads.get(id);\n\t\tif (!active) return;\n\t\tactive.controller.abort();\n\t\tthis.#reads.delete(id);\n\t\tthis.#generations.set(id, active.generation + 1);\n\t}\n\n\t#schedulePolling(): void {\n\t\tthis.#stopPolling();\n\t\tif (this.#listeners.size === 0) return;\n\t\tlet pending = [...this.#references.keys()].filter(id => {\n\t\t\tlet snapshot = this.#snapshots.get(id);\n\t\t\treturn !snapshot || ![\"ready\", \"failed\", \"cancelled\"].includes(snapshot.stage);\n\t\t});\n\t\tif (pending.length === 0) return;\n\t\tthis.#cancelPoll = this.#schedule(() => {\n\t\t\tthis.#cancelPoll = undefined;\n\t\t\tfor (let id of pending) {\n\t\t\t\tif (this.#references.has(id)) void this.#load(id);\n\t\t\t}\n\t\t}, 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