/** 服务端数据：全部由 TanStack Query 管理，不放进 Pinia（架构 §4.2）。 */
import { unwrap, type Schemas } from "@bid-doctor/api-client";
import { useQuery } from "@tanstack/vue-query";
import { computed, toValue, type MaybeRefOrGetter } from "vue";
import { api } from "./api";
import { qk } from "./keys";

export type Me = Schemas["Me"];
export type Quota = Schemas["QuotaOverview"];
export type Plan = Schemas["Plan"];
export type ProjectListItem = Schemas["ProjectListItem"];
export type ProjectDetail = Schemas["ProjectDetail"];
export type DocumentInfo = Schemas["Document"];
export type ParseJob = Schemas["ParseJob"];
export type Checklist = Schemas["Checklist"];
/**
 * 契约里 ChecklistItem 把 categories、title、importance 列为必填，但它们定义在 allOf 的 ChecklistItemFields 里，
 * openapi-typescript 生成的类型仍是可选。这里按契约的 required 收窄，不改字段本身。
 */
export type ChecklistItem = Schemas["ChecklistItem"] & Required<Pick<Schemas["ChecklistItemFields"], "categories" | "title" | "importance">>;
export type Citation = Schemas["Citation"];
export type MarkingRule = Schemas["MarkingRule"];
export type SessionInfo = Schemas["SessionInfo"];

export const fetchMe = () => unwrap(api.GET("/me"));

export function useMe() {
  return useQuery({ queryKey: qk.me, queryFn: fetchMe, staleTime: 60_000 });
}

export function useQuota() {
  return useQuery({ queryKey: qk.quota, queryFn: () => unwrap(api.GET("/quota")) });
}

/** 某个额度单位（如 parse）的本期账户；没有这个单位时为 undefined */
export function useQuotaAccount(unit: Schemas["QuotaUnit"]) {
  const q = useQuota();
  return computed(() => q.data.value?.accounts.find((a) => a.unit === unit));
}

export function usePlans() {
  return useQuery({ queryKey: qk.plans, queryFn: () => unwrap(api.GET("/plans")), staleTime: 10 * 60_000 });
}

export function useProjects() {
  // 骨架阶段只取第一页（默认按截止时间排序）；项目多了再接游标分页
  return useQuery({ queryKey: qk.projects, queryFn: () => unwrap(api.GET("/projects", { params: { query: { limit: 100 } } })) });
}

export function useProject(id: MaybeRefOrGetter<string | undefined>) {
  return useQuery({
    queryKey: computed(() => qk.project(toValue(id) ?? "")),
    queryFn: () => unwrap(api.GET("/projects/{project_id}", { params: { path: { project_id: toValue(id)! } } })),
    enabled: computed(() => !!toValue(id)),
  });
}

export function useDocument(id: MaybeRefOrGetter<string | undefined>) {
  return useQuery({
    queryKey: computed(() => qk.document(toValue(id) ?? "")),
    queryFn: () => unwrap(api.GET("/documents/{document_id}", { params: { path: { document_id: toValue(id)! } } })),
    enabled: computed(() => !!toValue(id)),
  });
}

export const TERMINAL_JOB: ReadonlySet<Schemas["JobStatus"]> = new Set(["succeeded", "failed", "cancelled"]);

/** 解析进度：事件流推送为主（lib/events.ts 直接改这条缓存），每 5 秒轮询兜底，结束后停止轮询。 */
export function useParseJob(id: MaybeRefOrGetter<string>) {
  return useQuery({
    queryKey: computed(() => qk.parseJob(toValue(id))),
    queryFn: () => unwrap(api.GET("/parse-jobs/{job_id}", { params: { path: { job_id: toValue(id) } } })),
    refetchInterval: (query) => (query.state.data && TERMINAL_JOB.has(query.state.data.status) ? false : 5000),
  });
}

export function useChecklist(projectId: MaybeRefOrGetter<string>) {
  return useQuery({
    queryKey: computed(() => qk.checklist(toValue(projectId))),
    queryFn: () => unwrap(api.GET("/projects/{project_id}/checklist", { params: { path: { project_id: toValue(projectId) } } })),
  });
}

export function useChecklistItems(projectId: MaybeRefOrGetter<string>) {
  return useQuery({
    queryKey: computed(() => qk.checklistItems(toValue(projectId))),
    queryFn: () =>
      unwrap(api.GET("/projects/{project_id}/checklist/items", { params: { path: { project_id: toValue(projectId) } } })) as Promise<{
        items: ChecklistItem[];
      }>,
  });
}