#!/usr/bin/env node
/**
 * create | delete | clone | rename — cohérence slides + portail (sync).
 */
import fs from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
import { execFileSync } from 'node:child_process'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const root = path.resolve(__dirname, '..')

function sync() {
  execFileSync(process.execPath, [path.join(root, 'tools', 'sync-portal.mjs')], {
    stdio: 'inherit',
    cwd: root,
    env: process.env,
  })
}

function assertSlug(s, label = 'slug') {
  if (!s || typeof s !== 'string') throw new Error(`${label} manquant`)
  if (!/^[a-z0-9-]+$/.test(s)) throw new Error(`${label} invalide (a-z 0-9 -): ${s}`)
  if (s.length < 2) throw new Error(`${label} trop court`)
  if (s === 'portal') throw new Error('slug réservé')
}

const cmd = process.argv[2]
const a = process.argv[3]
const b = process.argv[4]

try {
  if (cmd === 'create') {
    assertSlug(a)
    const dir = path.join(root, 'slides', a)
    if (fs.existsSync(dir)) throw new Error(`existe déjà: slides/${a}/`)
    fs.mkdirSync(dir, { recursive: true })
    fs.writeFileSync(
      path.join(dir, 'meta.json'),
      JSON.stringify(
        {
          title: 'Nouvelle présentation',
          description: '',
          order: 99,
          tags: [],
        },
        null,
        2,
      ),
      'utf8',
    )
    fs.writeFileSync(
      path.join(dir, 'slides.md'),
      ['---', 'title: Nouvelle présentation', '---', '', '# Bienvenue', ''].join('\n'),
      'utf8',
    )
    sync()
    console.log(`[create] slides/${a}/ — lancez make run ou make build`)
  } else if (cmd === 'delete') {
    assertSlug(a)
    fs.rmSync(path.join(root, 'slides', a), { recursive: true, force: true })
    fs.rmSync(path.join(root, `dist-${a}`), { recursive: true, force: true })
    sync()
    console.log(`[delete] ${a} retiré`)
  } else if (cmd === 'clone') {
    assertSlug(a, 'source')
    assertSlug(b, 'dest')
    const src = path.join(root, 'slides', a)
    const dst = path.join(root, 'slides', b)
    if (!fs.existsSync(src)) throw new Error(`source absente: slides/${a}/`)
    if (fs.existsSync(dst)) throw new Error(`dest existe: slides/${b}/`)
    fs.cpSync(src, dst, { recursive: true })
    const metaPath = path.join(dst, 'meta.json')
    const meta = JSON.parse(fs.readFileSync(metaPath, 'utf8'))
    meta.title = `${meta.title || a} (copie)`
    fs.writeFileSync(metaPath, JSON.stringify(meta, null, 2), 'utf8')
    sync()
    console.log(`[clone] ${a} → ${b} — build: node tools/build-deck.mjs ${b}`)
  } else if (cmd === 'rename') {
    assertSlug(a, 'ancien')
    assertSlug(b, 'nouveau')
    const src = path.join(root, 'slides', a)
    const dst = path.join(root, 'slides', b)
    if (!fs.existsSync(src)) throw new Error(`slides/${a}/ absent`)
    if (fs.existsSync(dst)) throw new Error(`slides/${b}/ existe déjà`)
    fs.renameSync(src, dst)
    const metaPath = path.join(dst, 'meta.json')
    const meta = JSON.parse(fs.readFileSync(metaPath, 'utf8'))
    delete meta.slug
    fs.writeFileSync(metaPath, JSON.stringify(meta, null, 2), 'utf8')
    const oldDist = path.join(root, `dist-${a}`)
    const newDist = path.join(root, `dist-${b}`)
    if (fs.existsSync(oldDist)) {
      fs.renameSync(oldDist, newDist)
    }
    sync()
    console.log(`[rename] ${a} → ${b}`)
  } else {
    console.error('usage: node tools/presentation-cli.mjs <create|delete|clone|rename> [args]')
    process.exit(1)
  }
} catch (e) {
  console.error(String(e.message || e))
  process.exit(1)
}