// API-level coverage for the enriched audit_logs metadata that the group
// sub-resource endpoints write. We assert that:
//   - group.user.add / group.user.remove rows record `username`
//   - group.app.add  / group.app.remove  rows record `appSlug`, `appNameEn`,
//     `appNameAr`
//   - group.role.add / group.role.remove rows record `roleName`
//
// The rows themselves are produced by POST /api/groups/:id/:kind/:targetId
// and DELETE /api/groups/:id/:kind/:targetId in routes/groups.ts, and are
// what powers the readable summary formatter on the admin audit log UI.
import { test, before, after } from "node:test";
import assert from "node:assert/strict";
import pg from "pg";

const API_BASE = process.env.TEST_API_BASE ?? "http://localhost:8080";
const DATABASE_URL = process.env.DATABASE_URL;
if (!DATABASE_URL) {
  throw new Error("DATABASE_URL must be set to run these tests");
}

const TEST_PASSWORD = "TestPass123!";
const TEST_PASSWORD_HASH =
  "$2b$10$Bs636ukPMyz01nKrsi.5m.JlDXSN22AVCvn8cgPWWDbo5yJRQX2vu";

const pool = new pg.Pool({ connectionString: DATABASE_URL });

let adminId;
let adminUsername;
let adminCookie;
let memberId;
let memberUsername;
let appId;
let appSlug;
let appNameEn;
let appNameAr;
let roleId;
let roleName;
let groupId;

async function loginAndGetCookie(username, password) {
  const res = await fetch(`${API_BASE}/api/auth/login`, {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ username, password }),
  });
  assert.equal(res.status, 200, `login expected 200, got ${res.status}`);
  const setCookie = res.headers.get("set-cookie");
  return setCookie
    .split(",")
    .map((c) => c.split(";")[0].trim())
    .find((c) => c.startsWith("connect.sid="));
}

before(async () => {
  const stamp = `${Date.now().toString(36)}_${Math.random().toString(36).slice(2, 6)}`;
  adminUsername = `gam_admin_${stamp}`;
  memberUsername = `gam_user_${stamp}`;

  const a = await pool.query(
    `INSERT INTO users (username, email, password_hash, display_name_en, preferred_language, is_active)
     VALUES ($1, $2, $3, 'Audit Admin', 'en', true) RETURNING id`,
    [adminUsername, `${adminUsername}@example.com`, TEST_PASSWORD_HASH],
  );
  adminId = a.rows[0].id;
  await pool.query(
    `INSERT INTO user_roles (user_id, role_id) SELECT $1, id FROM roles WHERE name = 'admin'`,
    [adminId],
  );

  const u = await pool.query(
    `INSERT INTO users (username, email, password_hash, display_name_en, preferred_language, is_active)
     VALUES ($1, $2, $3, 'Audit Member', 'en', true) RETURNING id`,
    [memberUsername, `${memberUsername}@example.com`, TEST_PASSWORD_HASH],
  );
  memberId = u.rows[0].id;

  appSlug = `gam_app_${stamp}`;
  appNameEn = `GAM App ${stamp}`;
  appNameAr = `تطبيق ${stamp}`;
  const ap = await pool.query(
    `INSERT INTO apps (slug, name_en, name_ar, icon_name, route, color, sort_order)
     VALUES ($1, $2, $3, 'Box', '/gam', '#000000', 999) RETURNING id`,
    [appSlug, appNameEn, appNameAr],
  );
  appId = ap.rows[0].id;

  roleName = `gam_role_${stamp}`;
  const r = await pool.query(
    `INSERT INTO roles (name) VALUES ($1) RETURNING id`,
    [roleName],
  );
  roleId = r.rows[0].id;

  // Empty group so we can drive sub-resource add/remove operations cleanly.
  const g = await pool.query(
    `INSERT INTO groups (name) VALUES ($1) RETURNING id`,
    [`gam_grp_${stamp}`],
  );
  groupId = g.rows[0].id;

  adminCookie = await loginAndGetCookie(adminUsername, TEST_PASSWORD);
});

after(async () => {
  // Clean up audit rows the tests produced before tearing down their targets,
  // otherwise actor_user_id/target_id FKs (or noisy leftovers) can linger.
  if (groupId !== undefined) {
    await pool.query(`DELETE FROM audit_logs WHERE target_type = 'group' AND target_id = $1`, [groupId]);
    await pool.query(`DELETE FROM user_groups WHERE group_id = $1`, [groupId]);
    await pool.query(`DELETE FROM group_apps WHERE group_id = $1`, [groupId]);
    await pool.query(`DELETE FROM group_roles WHERE group_id = $1`, [groupId]);
    await pool.query(`DELETE FROM groups WHERE id = $1`, [groupId]);
  }
  if (memberId !== undefined) {
    await pool.query(`DELETE FROM audit_logs WHERE target_type = 'user' AND target_id = $1`, [memberId]);
    await pool.query(`DELETE FROM user_groups WHERE user_id = $1`, [memberId]);
    await pool.query(`DELETE FROM user_roles WHERE user_id = $1`, [memberId]);
    await pool.query(`DELETE FROM users WHERE id = $1`, [memberId]);
  }
  if (appId !== undefined) {
    await pool.query(`DELETE FROM audit_logs WHERE target_type = 'app' AND target_id = $1`, [appId]);
    await pool.query(`DELETE FROM group_apps WHERE app_id = $1`, [appId]);
    await pool.query(`DELETE FROM apps WHERE id = $1`, [appId]);
  }
  if (roleId !== undefined) {
    await pool.query(`DELETE FROM audit_logs WHERE target_type = 'role' AND target_id = $1`, [roleId]);
    await pool.query(`DELETE FROM group_roles WHERE role_id = $1`, [roleId]);
    await pool.query(`DELETE FROM user_roles WHERE role_id = $1`, [roleId]);
    await pool.query(`DELETE FROM roles WHERE id = $1`, [roleId]);
  }
  if (adminId !== undefined) {
    await pool.query(`DELETE FROM audit_logs WHERE actor_user_id = $1`, [adminId]);
    await pool.query(`DELETE FROM user_roles WHERE user_id = $1`, [adminId]);
    await pool.query(`DELETE FROM users WHERE id = $1`, [adminId]);
  }
  await pool.end();
});

// Look up the most recent audit_logs row for a given (action, target_type,
// target_id) tuple so each test can target the row it just produced.
async function latestAuditRow(action, targetType, targetId) {
  const { rows } = await pool.query(
    `SELECT metadata FROM audit_logs
     WHERE action = $1 AND target_type = $2 AND target_id = $3
     ORDER BY id DESC LIMIT 1`,
    [action, targetType, targetId],
  );
  assert.equal(rows.length, 1, `expected one ${action} row for ${targetType}#${targetId}`);
  return rows[0].metadata;
}

test("group.user.add audit row records username (not just userId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/users/${memberId}`,
    { method: "POST", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.user.add", "group", groupId);
  assert.equal(meta.userId, memberId);
  assert.equal(meta.username, memberUsername);
  assert.ok(typeof meta.groupName === "string" && meta.groupName.length > 0);
});

test("group.user.remove audit row records username (not just userId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/users/${memberId}`,
    { method: "DELETE", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.user.remove", "group", groupId);
  assert.equal(meta.userId, memberId);
  assert.equal(meta.username, memberUsername);
});

test("group.app.add audit row records appSlug, appNameEn, appNameAr (not just appId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/apps/${appId}`,
    { method: "POST", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.app.add", "group", groupId);
  assert.equal(meta.appId, appId);
  assert.equal(meta.appSlug, appSlug);
  assert.equal(meta.appNameEn, appNameEn);
  assert.equal(meta.appNameAr, appNameAr);
});

test("group.app.remove audit row records appSlug, appNameEn, appNameAr (not just appId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/apps/${appId}`,
    { method: "DELETE", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.app.remove", "group", groupId);
  assert.equal(meta.appId, appId);
  assert.equal(meta.appSlug, appSlug);
  assert.equal(meta.appNameEn, appNameEn);
  assert.equal(meta.appNameAr, appNameAr);
});

test("group.role.add audit row records roleName (not just roleId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/roles/${roleId}`,
    { method: "POST", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.role.add", "group", groupId);
  assert.equal(meta.roleId, roleId);
  assert.equal(meta.roleName, roleName);
});

test("group.role.remove audit row records roleName (not just roleId)", async () => {
  const res = await fetch(
    `${API_BASE}/api/groups/${groupId}/roles/${roleId}`,
    { method: "DELETE", headers: { Cookie: adminCookie } },
  );
  assert.equal(res.status, 204);
  const meta = await latestAuditRow("group.role.remove", "group", groupId);
  assert.equal(meta.roleId, roleId);
  assert.equal(meta.roleName, roleName);
});