#!/usr/bin/env bun
import { resolve } from 'path';
import type { Command } from '../src/types.ts';
import { run } from '../src/index.ts';
import { createSkillClient } from '../src/auth-cli.ts';

const SKILL_NAME = 'video-product-snapshot';

// Load .env from skill root (does not override existing env vars)
loadDotenv(resolve(import.meta.dir, '../.env'));

function loadDotenv(path: string): void {
  let raw: string;
  try { raw = require('fs').readFileSync(path, 'utf-8'); } catch { return; }
  for (const line of raw.split('\n')) {
    const trimmed = line.trim();
    if (!trimmed || trimmed.startsWith('#')) continue;
    const eq = trimmed.indexOf('=');
    if (eq < 0) continue;
    const key = trimmed.slice(0, eq).trim();
    const val = trimmed.slice(eq + 1).trim().replace(/^["']|["']$/g, '');
    if (key && !(key in process.env)) process.env[key] = val;
  }
}

function printUsage(): void {
  console.error(`Usage:
  bun scripts/run.ts [--api-base=<url>] <command> [args...] [--dry-run]

Commands:
  session
      Get auth session token

  detect <video-path> [options]
      Extract frames and detect ecommerce product snapshots
      Options:
        --interval=<seconds>       Frame sampling interval (default: 1)
        --max-frames=<n>           Max frames to analyze (default: 60)
        --output-dir=<dir>         Where to save snapshots (default: next to video)
        --min-confidence=<0-1>     Minimum detection confidence (default: 0.7)

  search <image-path>
      Search for products using an image via the ecom image-search API

  detect-and-search <video-path> [options]
      Detect best product snapshot from video then run image search + rerank

  rerank --image-results=<json> [--description=<text>] [--keyword=<text>] [--top=<n>]
      Filter image search results using keyword intersection

Config: ~/.openclaw/.env (CLIENT_KEY), skill .env (VISION_API_KEY)
`);
}

async function reportHook(
  hookUrl: string,
  hookToken: string | undefined,
  payload: object,
): Promise<void> {
  const headers: Record<string, string> = { 'Content-Type': 'application/json' };
  if (hookToken) headers['Authorization'] = `Bearer ${hookToken}`;
  await fetch(hookUrl, { method: 'POST', headers, body: JSON.stringify(payload) });
}

async function main(): Promise<void> {
  const positionals: string[] = [];
  let dryRun = false;

  for (const arg of process.argv.slice(2)) {
    if (arg === '--dry-run') {
      dryRun = true;
    } else if (arg.startsWith('--api-base=')) {
      process.env.API_BASE = arg.slice('--api-base='.length).trim();
    } else if (arg === '-h' || arg === '--help') {
      printUsage(); process.exit(0);
    } else {
      positionals.push(arg);
    }
  }

  if (positionals.length < 1) { printUsage(); process.exit(1); }

  const command = positionals[0] as Command;

  // Exchange CLIENT_KEY for session — gives us hookUrl for telemetry
  let hookUrl: string | undefined;
  let hookToken: string | undefined;
  try {
    const client = createSkillClient({ dryRun });
    const session = await client.session();
    hookUrl = session.hookUrl;
    hookToken = session.hookToken;
  } catch {
    // Auth failure is non-fatal for telemetry; skill still runs
  }

  const startMs = Date.now();
  let result: Awaited<ReturnType<typeof run>>;

  try {
    result = await run(command, positionals.slice(1), dryRun);
  } catch (err) {
    const error = err instanceof Error ? err.message : String(err);
    const failed = { status: 'failed' as const, command, dryRun, error };
    console.log(JSON.stringify(failed, null, 2));

    if (hookUrl && !dryRun) {
      reportHook(hookUrl, hookToken, {
        skill: SKILL_NAME, command, status: 'failed',
        durationMs: Date.now() - startMs, error,
      }).catch(() => {});
    }
    process.exit(1);
  }

  console.log(JSON.stringify(result, null, 2));

  if (hookUrl && !dryRun) {
    reportHook(hookUrl, hookToken, {
      skill: SKILL_NAME,
      command,
      status: result.status,
      durationMs: Date.now() - startMs,
      error: (result as any).error,
    }).catch(() => {});
  }
}

main().catch((err) => {
  console.error(JSON.stringify({
    status: 'failed',
    error: err instanceof Error ? err.message : String(err),
  }, null, 2));
  process.exit(1);
});