import { query, one } from '../db.js';
import { env } from '../env.js';

interface TriggerArgs {
  buildId: string;
  websiteUrl: string;
  appName: string;
  platform: string;
  packageName: string;
  config: Record<string, unknown>;
}

/**
 * Trigger a cloud build.
 *
 * If CODEMAGIC_API_TOKEN + CODEMAGIC_APP_ID are configured, this calls the
 * Codemagic API for real. Otherwise it runs a local SIMULATION so the build
 * flow is demonstrable in development (progress + placeholder artifact).
 */
export async function triggerCloudBuild(args: TriggerArgs): Promise<{ cloudBuildId?: string; message: string }> {
  if (env.CODEMAGIC_API_TOKEN && env.CODEMAGIC_APP_ID) {
    const res = await fetch('https://api.codemagic.io/builds', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', 'x-auth-token': env.CODEMAGIC_API_TOKEN },
      body: JSON.stringify({
        appId: env.CODEMAGIC_APP_ID,
        workflowId: args.platform === 'ios' ? 'ios-workflow' : 'android-workflow',
        branch: 'main',
        environment: {
          variables: {
            APP_NAME: args.appName,
            WEBSITE_URL: args.websiteUrl,
            PACKAGE_NAME: args.packageName,
          },
        },
      }),
    });
    const json: any = await res.json().catch(() => ({}));
    if (!res.ok) throw new Error(json?.error || json?.message || 'Codemagic build trigger failed');
    const cloudBuildId = json?.buildId || json?._id;
    await query(`UPDATE public.app_builds SET status = 'building', progress = 5 WHERE id = $1`, [args.buildId]);
    return { cloudBuildId, message: 'Cloud build started (Codemagic)' };
  }

  // ---- Simulation (no Codemagic configured) ----
  await query(`UPDATE public.app_builds SET status = 'building', progress = 10 WHERE id = $1`, [args.buildId]);
  simulateBuild(args.buildId).catch((e) => console.error('[cloud-build sim]', e.message));
  return { message: 'Cloud build simulated (Codemagic not configured)' };
}

async function simulateBuild(buildId: string) {
  const steps = [25, 45, 65, 85];
  for (const p of steps) {
    await delay(2000);
    await query(`UPDATE public.app_builds SET progress = $2 WHERE id = $1 AND status = 'building'`, [buildId, p]);
  }
  await delay(2000);
  const build = await one<any>(`SELECT package_name FROM public.app_builds WHERE id = $1`, [buildId]);
  const fileName = `${(build?.package_name || 'app').replace(/\./g, '-')}.apk`;
  await query(
    `UPDATE public.app_builds
     SET status = 'complete', progress = 100,
         download_url = $2, file_size_bytes = $3
     WHERE id = $1 AND status = 'building'`,
    [buildId, `/storage/apk-builds/simulated/${fileName}`, 12 * 1024 * 1024]
  );
}

const delay = (ms: number) => new Promise((res) => setTimeout(res, ms));

/** Returns the current build row (used by the status endpoint). */
export async function getCloudBuildStatus(buildId: string) {
  return one(`SELECT * FROM public.app_builds WHERE id = $1`, [buildId]);
}