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import { batch, createMemo, createRoot, onCleanup } from "solid-js"
import { createStore } from "solid-js/store"
import { createSimpleContext } from "@opencode-ai/ui/context"
import { useParams } from "@solidjs/router"
import { Persist, persisted } from "@/utils/persist"
import type { SelectedLineRange } from "@/context/file"
export type LineComment = {
id: string
file: string
selection: SelectedLineRange
comment: string
time: number
}
type CommentFocus = { file: string; id: string }
const WORKSPACE_KEY = "__workspace__"
const MAX_COMMENT_SESSIONS = 20
type CommentSession = ReturnType<typeof createCommentSession>
type CommentCacheEntry = {
value: CommentSession
dispose: VoidFunction
}
function createCommentSession(dir: string, id: string | undefined) {
const legacy = `${dir}/comments${id ? "/" + id : ""}.v1`
const [store, setStore, _, ready] = persisted(
Persist.scoped(dir, id, "comments", [legacy]),
createStore<{
comments: Record<string, LineComment[]>
}>({
comments: {},
}),
)
const [state, setState] = createStore({
focus: null as CommentFocus | null,
active: null as CommentFocus | null,
})
const setFocus = (value: CommentFocus | null | ((value: CommentFocus | null) => CommentFocus | null)) =>
setState("focus", value)
const setActive = (value: CommentFocus | null | ((value: CommentFocus | null) => CommentFocus | null)) =>
setState("active", value)
const list = (file: string) => store.comments[file] ?? []
const add = (input: Omit<LineComment, "id" | "time">) => {
const next: LineComment = {
id: crypto.randomUUID(),
time: Date.now(),
...input,
}
batch(() => {
setStore("comments", input.file, (items) => [...(items ?? []), next])
setFocus({ file: input.file, id: next.id })
})
return next
}
const remove = (file: string, id: string) => {
setStore("comments", file, (items) => (items ?? []).filter((x) => x.id !== id))
setFocus((current) => (current?.id === id ? null : current))
}
const all = createMemo(() => {
const files = Object.keys(store.comments)
const items = files.flatMap((file) => store.comments[file] ?? [])
return items.slice().sort((a, b) => a.time - b.time)
})
return {
ready,
list,
all,
add,
remove,
focus: createMemo(() => state.focus),
setFocus,
clearFocus: () => setFocus(null),
active: createMemo(() => state.active),
setActive,
clearActive: () => setActive(null),
}
}
export const { use: useComments, provider: CommentsProvider } = createSimpleContext({
name: "Comments",
gate: false,
init: () => {
const params = useParams()
const cache = new Map<string, CommentCacheEntry>()
const disposeAll = () => {
for (const entry of cache.values()) {
entry.dispose()
}
cache.clear()
}
onCleanup(disposeAll)
const prune = () => {
while (cache.size > MAX_COMMENT_SESSIONS) {
const first = cache.keys().next().value
if (!first) return
const entry = cache.get(first)
entry?.dispose()
cache.delete(first)
}
}
const load = (dir: string, id: string | undefined) => {
const key = `${dir}:${id ?? WORKSPACE_KEY}`
const existing = cache.get(key)
if (existing) {
cache.delete(key)
cache.set(key, existing)
return existing.value
}
const entry = createRoot((dispose) => ({
value: createCommentSession(dir, id),
dispose,
}))
cache.set(key, entry)
prune()
return entry.value
}
const session = createMemo(() => load(params.dir!, params.id))
return {
ready: () => session().ready(),
list: (file: string) => session().list(file),
all: () => session().all(),
add: (input: Omit<LineComment, "id" | "time">) => session().add(input),
remove: (file: string, id: string) => session().remove(file, id),
focus: () => session().focus(),
setFocus: (focus: CommentFocus | null) => session().setFocus(focus),
clearFocus: () => session().clearFocus(),
active: () => session().active(),
setActive: (active: CommentFocus | null) => session().setActive(active),
clearActive: () => session().clearActive(),
}
},
})
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