/**
 * POST /api/players/ensure-match
 * Body: { account_id, match_id }
 * Auth: logged-in self, or target user has public_share.
 * Loads Climperor match detail from R2, or fetches+normalizes from OpenDota.
 */
import { sessionFromRequest } from "../auth/_steam_common.js";
import { jsonResponse } from "./_db.js";
import { ensureNormalizedMatch } from "./_match.js";

function intField(v, fallback = 0) {
  const n = Number(v);
  return Number.isFinite(n) ? Math.trunc(n) : fallback;
}

export async function onRequestPost(context) {
  try {
    const env = context.env || {};
    if (!env.DB) return jsonResponse({ error: "database not configured" }, 503);
    if (!env.MATCHES) return jsonResponse({ error: "storage not configured" }, 503);

    let body;
    try {
      body = await context.request.json();
    } catch {
      return jsonResponse({ error: "invalid json" }, 400);
    }
    const accountId = intField(body && body.account_id, -1);
    const matchId = intField(body && body.match_id, -1);
    if (accountId <= 0 || matchId <= 0) {
      return jsonResponse({ error: "account_id and match_id required" }, 400);
    }

    const session = await sessionFromRequest(context);
    const self = session && Number(session.account_id) === accountId;
    const user = await env.DB.prepare(
      `SELECT public_share FROM users WHERE account_id = ?`
    )
      .bind(accountId)
      .first();
    if (!user) return jsonResponse({ error: "not found" }, 404);
    if (!self && !user.public_share) {
      return jsonResponse({ error: "private" }, 404);
    }

    const { match, error } = await ensureNormalizedMatch(env, accountId, matchId);
    if (!match) {
      return jsonResponse(
        { error: error || "unknown", account_id: accountId, match_id: matchId },
        404
      );
    }
    return jsonResponse({ ok: true, match });
  } catch (e) {
    return jsonResponse(
      { error: "ensure-match failed", detail: String((e && e.message) || e) },
      500
    );
  }
}

export async function onRequestOptions() {
  return new Response(null, {
    status: 204,
    headers: {
      "Access-Control-Allow-Origin": "*",
      "Access-Control-Allow-Methods": "POST, OPTIONS",
      "Access-Control-Allow-Headers": "Content-Type",
      "Access-Control-Max-Age": "86400",
    },
  });
}