#!/usr/bin/env node
// Embedded-mode container lifecycle tests. Requires Docker and a built image.
// Usage: SNAPOTTER_IMAGE=snapotter:embed-wip node tests/e2e-docker/embedded-mode.mjs
//
// Unlike the Playwright e2e-docker specs (which talk to an already-running
// container), these drive `docker run`/`stop` directly to exercise the container
// lifecycle: bare-run boot, restart persistence, clean shutdown, the non-root and
// partial-config fail-fast guards, and the 1.x SQLite auto-detect upgrade.
import { execFileSync, spawnSync } from "node:child_process";

const IMAGE = process.env.SNAPOTTER_IMAGE || "snapotter:embed-wip";
const NAME = "so-embed-test";
const VOL = "so-embed-test-data";
const PORT = process.env.SNAPOTTER_TEST_PORT || "13492";

let failures = 0;
const ok = (m) => console.log(`  PASS ${m}`);
const bad = (m) => {
  failures++;
  console.error(`  FAIL ${m}`);
};
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

// Run docker, returning stdout. Throws on non-zero exit (callers that expect a
// non-zero exit wrap in try/catch and read combined output from the error).
const docker = (args) =>
  execFileSync("docker", args, { encoding: "utf-8", stdio: ["ignore", "pipe", "pipe"] });
const quiet = (args) => {
  try {
    return docker(args);
  } catch {
    return "";
  }
};
const combined = (args) => {
  try {
    return docker(args);
  } catch (e) {
    return `${e.stdout || ""}${e.stderr || ""}`;
  }
};
// `docker logs` writes the container's stdout and stderr to docker's own stdout
// and stderr respectively. The embedded banner (entrypoint >&2) and Postgres
// logs go to stderr, so capture BOTH streams or those assertions miss them.
const dockerLogs = (name) => {
  const res = spawnSync("docker", ["logs", name], { encoding: "utf-8" });
  return `${res.stdout || ""}${res.stderr || ""}`;
};
const cleanup = () => {
  quiet(["rm", "-f", NAME]);
  quiet(["volume", "rm", VOL]);
};

async function waitHealthy(timeoutMs) {
  const deadline = Date.now() + timeoutMs;
  while (Date.now() < deadline) {
    try {
      const res = await fetch(`http://localhost:${PORT}/api/v1/health`);
      if (res.ok) {
        const body = await res.json();
        if (body.status === "healthy") return true;
      }
    } catch {
      // not accepting connections yet
    }
    await sleep(3000);
  }
  return false;
}

const countMatches = (haystack, re) => (haystack.match(re) || []).length;

async function main() {
  console.log(`Embedded-mode tests against ${IMAGE}`);
  cleanup();

  // 1. Bare `docker run` with no DB env boots and becomes healthy.
  console.log("\n[1] bare docker run boots healthy");
  docker(["run", "-d", "--name", NAME, "-p", `${PORT}:1349`, "-v", `${VOL}:/data`, IMAGE]);
  const healthy = await waitHealthy(300000);
  healthy
    ? ok("embedded container reached healthy")
    : bad("embedded container never became healthy");

  const logs1 = dockerLogs(NAME);
  logs1.includes("embedded mode") ? ok("embedded banner printed") : bad("no embedded banner");
  countMatches(logs1, /first-boot initdb/g) === 1
    ? ok("initdb ran exactly once")
    : bad("initdb did not run exactly once");

  // 2. Restart reuses PGDATA (no second initdb), stays healthy.
  console.log("\n[2] restart persists data, no re-init");
  docker(["restart", NAME]);
  (await waitHealthy(180000)) ? ok("healthy after restart") : bad("unhealthy after restart");
  countMatches(dockerLogs(NAME), /first-boot initdb/g) === 1
    ? ok("no second initdb on restart")
    : bad("re-initialized on restart (data loss risk)");

  // 3. Clean shutdown: docker stop returns fast, Postgres logs a clean stop.
  console.log("\n[3] clean shutdown");
  const t0 = Date.now();
  docker(["stop", NAME]);
  const stopMs = Date.now() - t0;
  stopMs < 9000
    ? ok(`stopped in ${stopMs}ms (before kill timeout)`)
    : bad(`stop took ${stopMs}ms (likely SIGKILL)`);
  dockerLogs(NAME).includes("database system is shut down")
    ? ok("Postgres logged a clean shutdown")
    : bad("no clean Postgres shutdown line");
  cleanup();

  // 4. Non-root fails fast.
  console.log("\n[4] non-root fail-fast");
  combined(["run", "--rm", "--user", "1000:1000", IMAGE]).includes("embedded mode needs root")
    ? ok("non-root rejected with guidance")
    : bad("non-root not rejected");

  // 5. Partial config fails fast.
  console.log("\n[5] partial-config fail-fast");
  combined(["run", "--rm", "-e", "REDIS_URL=redis://x:6379", IMAGE]).includes(
    "set BOTH DATABASE_URL and REDIS_URL",
  )
    ? ok("partial config rejected")
    : bad("partial config not rejected");

  // 6. 1.x SQLite auto-detect upgrade: a /data/snapotter.db present with no
  //    SQLITE_MIGRATE_PATH set is auto-imported on first boot. Seed all 10 tables
  //    the importer reads (empty) so the import succeeds without column-mismatch;
  //    this proves the auto-detect wiring (row migration is covered elsewhere).
  console.log("\n[6] 1.x SQLite auto-detect upgrade");
  cleanup();
  const tables = [
    "users",
    "teams",
    "settings",
    "roles",
    "sessions",
    "api_keys",
    "pipelines",
    "jobs",
    "audit_log",
    "user_files",
  ];
  const seedSql = tables.map((t) => `CREATE TABLE ${t}(id TEXT);`).join(" ");
  docker([
    "run",
    "--rm",
    "-v",
    `${VOL}:/data`,
    "alpine:3.20",
    "sh",
    "-c",
    `apk add --no-cache sqlite >/dev/null 2>&1 && sqlite3 /data/snapotter.db "${seedSql}"`,
  ]);
  docker(["run", "-d", "--name", NAME, "-p", `${PORT}:1349`, "-v", `${VOL}:/data`, IMAGE]);
  (await waitHealthy(300000))
    ? ok("healthy after upgrade boot")
    : bad("unhealthy after upgrade boot");
  dockerLogs(NAME).includes("Imported 1.x SQLite database")
    ? ok("auto-detected and imported the 1.x SQLite DB")
    : bad("did not auto-import the 1.x SQLite DB");

  // Second boot must NOT re-import (target Postgres now non-empty).
  docker(["restart", NAME]);
  (await waitHealthy(180000))
    ? ok("healthy after second boot")
    : bad("unhealthy after second boot");
  countMatches(dockerLogs(NAME), /Imported 1\.x SQLite database/g) === 1
    ? ok("did not re-import on the second boot")
    : bad("re-imported on the second boot");
  cleanup();

  console.log(`\n${failures === 0 ? "ALL PASSED" : `${failures} FAILED`}`);
  process.exit(failures === 0 ? 0 : 1);
}

main().catch((e) => {
  console.error(e);
  cleanup();
  process.exit(1);
});