#!/usr/bin/env node
import fs from 'node:fs/promises'
import path from 'node:path'
import { fileURLToPath } from 'node:url'
import yaml from 'js-yaml'

const __filename = fileURLToPath(import.meta.url)
const __dirname = path.dirname(__filename)

const REPO_ROOT = path.resolve(__dirname, '..')
const SOURCE = path.join(REPO_ROOT, 'public/data/carte-o-source.yaml')
const OUTPUT = path.join(REPO_ROOT, 'public/data/carte-o.json')

// radius par niveau + nature
function getRadius(niveau, nature) {
  if (niveau === 0) return 28
  if (niveau === 1) return 18
  if (niveau === 2 && nature === 'projet') return 14
  return 10
}

// compat backward : nature -> family
function getFamily(nature) {
  return nature === 'projet' ? 'ressource' : 'concept'
}

// thematiques rattachees directement au centre (ni ncs-politique ni medecine-corps-social)
const CENTRE_THEMATIQUES = new Set([
  'medias-critique',
  'justice-securite',
  'agriculture',
  'urbanisme',
  'geopolitique',
])

const NCS_THEMATIQUES = new Set([
  'systemique',
  'pratiques-collectives',
  'pouvoir-domination',
  'post-croissance',
  'education',
])

const MDCS_THEMATIQUES = new Set([
  'art-narration',
  'sante-globale',
  'spiritualite',
  'ia-technologie',
  'anthropocene',
])

async function main() {
  const raw = await fs.readFile(SOURCE, 'utf-8')
  const data = yaml.load(raw)

  const nodes = []
  const edges = []
  const edgeSet = new Set()

  function addEdge(source, target) {
    const key = source < target ? `${source}|${target}` : `${target}|${source}`
    if (edgeSet.has(key)) return
    edgeSet.add(key)
    edges.push({ source, target })
  }

  function addNode(obj) {
    nodes.push({
      id: obj.id,
      label: obj.label,
      niveau: obj.niveau,
      nature: obj.nature,
      statut: obj.statut,
      resume: obj.resume || null,
      radius: getRadius(obj.niveau, obj.nature),
      family: getFamily(obj.nature),
    })
  }

  const centreId = data.centre.id
  addNode(data.centre)

  for (const cf of data.concepts_force) {
    addNode(cf)
    addEdge(centreId, cf.id)
  }

  for (const th of data.thematiques) {
    addNode(th)
    if (NCS_THEMATIQUES.has(th.id)) {
      addEdge('ncs-politique', th.id)
    } else if (MDCS_THEMATIQUES.has(th.id)) {
      addEdge('medecine-corps-social', th.id)
    } else if (CENTRE_THEMATIQUES.has(th.id)) {
      addEdge(centreId, th.id)
    }
  }

  for (const proj of data.projets) {
    addNode(proj)
    for (const thId of (proj.liens_thematiques || [])) {
      addEdge(proj.id, thId)
    }
  }

  await fs.mkdir(path.dirname(OUTPUT), { recursive: true })
  await fs.writeFile(
    OUTPUT,
    JSON.stringify({
      version: data.version,
      generatedAt: new Date().toISOString(),
      nodes,
      edges,
    }, null, 2),
    'utf-8',
  )

  console.log(`[carte-o] OK : ${nodes.length} nodes / ${edges.length} edges -> ${OUTPUT}`)
}

main().catch(err => {
  console.error('[carte-o] FAIL', err)
  process.exit(1)
})

// V1 scrape vault - reactiver en V1.2 pour enrichissement automatique
// Source : scripts/build-carte-o.js@be7fc09 (scrape AEP/Articles globby + gray-matter + wikilinks edges)