import type {
  Campaign,
  CampaignSummary,
  DecisionRecord,
  GatedResult,
  PolicySection,
  Stats,
} from "./types";

async function j<T>(r: Response): Promise<T> {
  if (!r.ok) {
    const body = await r.json().catch(() => ({ detail: r.statusText }));
    throw new Error(typeof body.detail === "string" ? body.detail : `HTTP ${r.status}`);
  }
  return r.json() as Promise<T>;
}

const post = (url: string, payload: unknown) =>
  fetch(url, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify(payload),
  });

export const getStats = () => fetch("/api/stats").then((r) => j<Stats>(r));
export const getCampaigns = () => fetch("/api/campaigns").then((r) => j<CampaignSummary[]>(r));
export const getCampaign = (id: string) => fetch(`/api/campaigns/${id}`).then((r) => j<Campaign>(r));
export const getDecisions = () => fetch("/api/decisions").then((r) => j<DecisionRecord[]>(r));
export const getPolicy = () => fetch("/api/policy").then((r) => j<PolicySection[]>(r));

export const runTriage = (campaign_id: string, provider: string, force = false) =>
  post("/api/triage", { campaign_id, provider, force }).then((r) => j<GatedResult>(r));

export const postDecision = (
  campaign_id: string,
  human_decision: string,
  moderator: string,
  reason: string,
) =>
  post("/api/decisions", { campaign_id, human_decision, moderator, reason }).then((r) =>
    j<DecisionRecord>(r),
  );