// Hero profile integration tests: GET /api/heroes/:name (public, no auth).
const { describe, it, before, after } = require('node:test');
const assert = require('node:assert/strict');
const { setup, teardown, cleanup } = require('../helpers');

describe('hero profile (public)', () => {
  let baseUrl, userSeq = 0;

  before(async () => {
    baseUrl = await setup();
  });

  after(async () => {
    await teardown();
    cleanup();
  });

  /**
   * Register, login, create a character, return cookie + characterId.
   */
  async function registerAndLogin(username, password) {
    await fetch(`${baseUrl}/api/auth/register`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ username, password }),
    });

    const res = await fetch(`${baseUrl}/api/auth/login`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ username, password }),
    });
    assert.equal(res.status, 200);
    const setCookie = res.headers.get('set-cookie');
    assert.ok(setCookie, 'Login should set a session cookie');
    return setCookie.split(';')[0];
  }

  async function createHero(cookie, heroName, heroClass) {
    const res = await fetch(`${baseUrl}/api/character`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json', Cookie: cookie },
      body: JSON.stringify({ name: heroName, class: heroClass }),
    });
    assert.equal(res.status, 201);
    const json = await res.json();
    return json.data.character.id;
  }

  function updateHeroField(characterId, column, value) {
    const db = require('../../src/db').getDb();
    db.prepare(`UPDATE characters SET ${column} = ? WHERE id = ?`).run(value, characterId);
  }

  function equipItem(characterId, itemId, slot) {
    const db = require('../../src/db').getDb();
    db.prepare('UPDATE inventory SET equipped_slot = ? WHERE id = ?').run(slot, itemId);
  }

  it('returns public profile for an existing hero', async () => {
    const cookie = await registerAndLogin(`herouser1`, 'password123');
    const characterId = await createHero(cookie, 'DragonSlayer', 'warrior');

    // Tweak some fields so they show up in the response.
    updateHeroField(characterId, 'level', 5);
    updateHeroField(characterId, 'kills', 42);
    updateHeroField(characterId, 'gold', 300);
    updateHeroField(characterId, 'deaths', 3);

    const res = await fetch(`${baseUrl}/api/heroes/DragonSlayer`);
    assert.equal(res.status, 200);
    const json = await res.json();
    assert.equal(json.ok, true);

    const data = json.data;
    assert.equal(data.name, 'DragonSlayer');
    assert.equal(data.class, 'warrior');
    assert.equal(data.level, 5);
    assert.equal(data.kills, 42);
    assert.equal(data.gold, 300);
    assert.equal(data.deaths, 3);
    assert.ok(typeof data.str === 'number');
    assert.ok(typeof data.agi === 'number');
    assert.ok(typeof data.int === 'number');
    assert.ok(typeof data.vit === 'number');
    assert.ok(typeof data.xp === 'number');
    assert.deepStrictEqual(data.equipment, { weapon: null, armor: null, trinket: null });

    // Response must NOT contain private fields.
    assert.ok(!('energy' in data));
    assert.ok(!('energy_updated_at' in data));
    assert.ok(!('user_id' in data));
    assert.ok(!('created_at' in data));
    assert.ok(!('password_hash' in data));
  });

  it('returns equipped item names', async () => {
    const cookie = await registerAndLogin(`herouser2`, 'password123');
    const characterId = await createHero(cookie, 'ArmoredOne', 'mage');

    // Insert starter gear directly into inventory (starter gear not auto-created yet).
    const db = require('../../src/db').getDb();

    // Get a weapon item from the items table.
    const weapon = db.prepare(
      "SELECT id FROM items WHERE type = 'weapon' AND min_level <= 1 ORDER BY id LIMIT 1"
    ).get();
    assert.ok(weapon, 'Should have a level-1 weapon in the items table');

    // Insert it into inventory, equipped as weapon.
    const now = Date.now();
    db.prepare(
      'INSERT INTO inventory (character_id, item_id, quantity, equipped_slot, acquired_at) VALUES (?, ?, 1, ?, ?)'
    ).run(characterId, weapon.id, 'weapon', now);

    const res = await fetch(`${baseUrl}/api/heroes/ArmoredOne`);
    assert.equal(res.status, 200);
    const json = await res.json();
    assert.equal(json.ok, true);
    assert.ok(json.data.equipment.weapon, 'Should have a weapon equipped');
  });

  it('is case-insensitive', async () => {
    const cookie = await registerAndLogin(`herouser3`, 'password123');
    await createHero(cookie, 'TeStHeRo', 'ranger');

    const res1 = await fetch(`${baseUrl}/api/heroes/TeStHeRo`);
    assert.equal(res1.status, 200);

    const res2 = await fetch(`${baseUrl}/api/heroes/testhero`);
    assert.equal(res2.status, 200);

    const json1 = await res1.json();
    const json2 = await res2.json();
    assert.equal(json1.data.name, json2.data.name);
  });

  it('returns 404 for a non-existent hero', async () => {
    const res = await fetch(`${baseUrl}/api/heroes/NonExistentHero99`);
    assert.equal(res.status, 404);
    const json = await res.json();
    assert.equal(json.ok, false);
    assert.equal(json.error.code, 'NOT_FOUND');
  });

  it('works without authentication', async () => {
    // This endpoint should be accessible without any session cookie.
    const cookie = await registerAndLogin(`herouser4`, 'password123');
    await createHero(cookie, 'PublicHero', 'warrior');

    // No cookie at all — should still work.
    const res = await fetch(`${baseUrl}/api/heroes/PublicHero`);
    assert.equal(res.status, 200);
    const json = await res.json();
    assert.equal(json.ok, true);
    assert.equal(json.data.name, 'PublicHero');
  });
});