require('dotenv').config()

const settingsDb = require('../src/model/settings/settings.db')
const wikiDb = require('../src/model/wiki/wiki.db')
const users = require('../src/model/users/users.model')
const { ensureSchema, close } = require('../src/utils/db')
const brand = require('../src/config/brand')

const log = require('../src/utils/logger')('seed')

// Default settings — only inserted if the key does not already exist.
const DEFAULT_SETTINGS = {
  site_mode: 'maintenance', // start safe: site is in maintenance until set live
  site_mode_changed_at: '',
  site_mode_changed_by: '',
  maintenance_message:
    `${brand.shortName} is being shaped beneath a midnight sky. The site will return soon.`,
  status_message: 'In progress.',
  homepage_teaser:
    `${brand.shortName} is still being shaped beneath a midnight sky. A quiet preview for ` +
    'future news, screenshots, guides, and community notes as the world comes online.',
  contact_email: brand.contactEmail,
  site_title: brand.name,
  // Android App Links opt-in — off until an admin enables it (docs/android/APP_LINKS.md).
  mobile_app_links_enabled: 'false',
  // Hosts a module may be installed from (MODULE_SYSTEM.md §2.7.2 decision 6).
  //
  // The environment BOOTSTRAPS this and does not own it: seedDefault is an
  // INSERT IGNORE, so the variable supplies a sane default on a fresh install
  // and never reaches back in to overwrite what an admin later chose in
  // Admin → Modules. Changing MODULE_SOURCE_HOSTS on an existing deployment is
  // therefore a no-op, which is the intended behaviour and not an oversight.
  //
  // An empty stored value forbids every install rather than allowing every host
  // — the safe direction for a setting someone might blank by accident.
  module_source_hosts: process.env.MODULE_SOURCE_HOSTS || 'gitea.whitlocktech.com',
}

// Starter wiki sections (editable later via the admin panel).
//
// The SLUGS are deliberately untouched by the de-UO pass: `seedDefault*` only
// inserts a row that is not already there, so renaming one adds a duplicate page
// to every existing install rather than renaming anything.
// [slug, title, description, sort_order]
const WIKI_CATEGORIES = [
  ['guides', 'Guides', 'Getting started and how-to guides.', 10],
  ['world', 'World & Lore', `Regions, maps, and the story of ${brand.shortName}.`, 20],
  ['gameplay', 'Systems & Gameplay', 'Mechanics, items, monsters, and crafting.', 30],
  ['community', 'Community & Rules', 'Player conduct and server policies.', 40],
]

// The 8 starter pages, each mapped to a section. [slug, title, body, categorySlug]
const WIKI_PAGES = [
  ['new-player-guide', 'New Player Guide', 'First steps, basic survival, and early goals.', 'guides'],
  ['maps-atlas', 'Maps & Atlas', 'Regions, towns, routes, and travel notes.', 'world'],
  ['lore', 'Lore', 'Stories, places, factions, and mysteries.', 'world'],
  ['systems', 'Server Systems', 'Server mechanics and custom features.', 'gameplay'],
  ['items', 'Items & Rewards', 'Equipment, treasures, rewards, and curiosities.', 'gameplay'],
  ['monsters', 'Monsters & Encounters', 'Creatures, bosses, spawns, and dangers.', 'gameplay'],
  ['crafting', 'Crafting', 'Professions, materials, recipes, and tools.', 'gameplay'],
  ['rules', 'Rules', 'Player conduct, server expectations, and policies.', 'community'],
]

async function seedDefaults() {
  for (const [key, value] of Object.entries(DEFAULT_SETTINGS)) {
    await settingsDb.seedDefault(key, value)
  }
  for (const [slug, title, description, sortOrder] of WIKI_CATEGORIES) {
    await wikiDb.seedDefaultCategory(slug, title, description, sortOrder)
  }
  for (const [slug, title, body, categorySlug] of WIKI_PAGES) {
    await wikiDb.seedDefault(slug, title, body)
    // Attach to its section (only if not already categorized — safe re-run /
    // migration of pages seeded before the wiki upgrade).
    await wikiDb.assignCategoryBySlug(slug, categorySlug)
  }
  log.info('settings and wiki defaults ensured')
}

// Create the first admin from env vars, only when no users exist yet.
async function createInitialAdminFromEnv() {
  const { ADMIN_USERNAME, ADMIN_PASSWORD } = process.env
  if (!ADMIN_USERNAME || !ADMIN_PASSWORD) return
  if ((await users.count()) > 0) return
  await users.createUser({ username: ADMIN_USERNAME, password: ADMIN_PASSWORD, role: 'admin' })
  log.info(`created initial admin "${ADMIN_USERNAME}"`)
}

// Allow running standalone: `npm run seed`
if (require.main === module) {
  ;(async () => {
    try {
      await ensureSchema()
      await seedDefaults()
      await createInitialAdminFromEnv()
    } catch (err) {
      log.error('seed failed', err)
      process.exitCode = 1
    } finally {
      await close()
    }
  })()
}

module.exports = { seedDefaults, createInitialAdminFromEnv }
