/* exported importWizard -- appeles depuis les attributs HTML des templates */

// A20 phase 3 : registre Alpine.data (le build CSP ne résout pas les

// globales window — probe « Undefined variable: importWizard »).

document.addEventListener('alpine:init', function () { Alpine.data('importWizard', importWizard); });
function importWizard() {
  return {
    sources: [],
    sourceId: '',
    files: [],
    dragOver: false,
    mode: 'skip',
    busy: false,
    progress: 0,
    error: '',
    preview: null,
    report: null,
    mapping: {},
    csrf: '',
    urlValue: '',
    urlError: '',
    forgeProvider: 'gitea',
    forgeOwner: '',
    forgeRepo: '',
    forgeState: 'all',
    forgeError: '',
    types: ['text','number','date','checkbox','email','url','phone','select','multi_select','status'],
    async init() {
      try {
        const r = await fetch('/api/import/sources');
        this.sources = (await r.json()).sources || [];
      } catch { /* volontaire */ }
      try {
        const c = await fetch('/api/csrf-token');
        this.csrf = (await c.json()).csrf_token;
      } catch { /* volontaire */ }
    },
    humanSize(n) { return n > 1048576 ? (n/1048576).toFixed(1)+' Mo' : Math.max(1, Math.round(n/1024))+' Ko'; },
    addFiles(list) {
      for (const f of list) this.files.push({file:f, name:f.name, size:f.size, status:'queued'});
      this.preview = null; this.report = null; this.error = '';
    },
    onFiles(e) { this.addFiles(e.target.files); e.target.value=''; },
    onDrop(e) { this.dragOver=false; this.addFiles(e.dataTransfer.files); },
    buildForm(f) {
      const fd = new FormData();
      fd.append('file', f.file);
      if (this.sourceId) fd.append('source', this.sourceId);
      fd.append('mode', this.mode);
      return fd;
    },
    async doPreview() {
      this.busy = true; this.error=''; this.report=null; this.progress=10;
      try {
        let merged = null;
        for (let i=0;i<this.files.length;i++) {
          const r = await fetch('/api/import/preview', {method:'POST', headers:{'X-CSRF-Token':this.csrf}, body:this.buildForm(this.files[i])});
          const d = await r.json();
          if (!r.ok) { this.error = (this.files[i].name+': '+(d.detail||'Erreur')); continue; }
          if (!merged) merged = {source_label:d.source_label, pages:[], warnings:[], stats:{}};
          merged.pages.push(...(d.pages||[]));
          merged.warnings.push(...(d.warnings||[]));
          this.progress = Math.round(((i+1)/this.files.length)*100);
        }
        this.preview = merged;
        this.mapping = {};
        (merged ? merged.pages : []).forEach(p => (p.schema||[]).forEach(c => { this.mapping[c.name]=c.type; }));
      } catch { this.error = 'Erreur réseau'; }
      finally { this.busy = false; setTimeout(()=>{this.progress=0;},800); }
    },
    async importOne(f) {
      f.status = 'running';
      const fd = this.buildForm(f);
      if (Object.keys(this.mapping).length) fd.append('mapping', JSON.stringify(this.mapping));
      const big = f.size > 5*1024*1024;
      try {
        if (big) {
          fd.append('async','true');
          const r = await fetch('/api/import/run', {method:'POST', headers:{'X-CSRF-Token':this.csrf}, body:fd});
          const d = await r.json();
          if (!r.ok) { f.status='error'; f.error=d.detail||'Erreur'; return null; }
          return await this.pollJob(d.job_id, f);
        }
        const r = await fetch('/api/import/run', {method:'POST', headers:{'X-CSRF-Token':this.csrf}, body:fd});
        const d = await r.json();
        if (!r.ok) { f.status='error'; f.error=d.detail||'Erreur'; return null; }
        f.status = (d.status==='partial' ? 'partial' : 'done');
        return d;
      } catch { f.status='error'; f.error='Erreur réseau'; return null; }
    },
    async doImport() {
      this.busy = true; this.error=''; this.report=null; this.progress=0;
      const aggregate = {pages_created:0,pages_updated:0,collections_created:0,rows_created:0,
                         attachments:0,skipped:0,warnings:[],errors:[],per_file:[]};
      for (let i=0;i<this.files.length;i++) {
        const d = await this.importOne(this.files[i]);
        if (d) {
          for (const k of ['pages_created','pages_updated','collections_created','rows_created','attachments','skipped'])
            aggregate[k] += (d[k]||0);
          aggregate.warnings.push(...(d.warnings||[]));
          aggregate.errors.push(...(d.errors||[]));
          aggregate.per_file.push({filename:this.files[i].name, report:d});
        } else {
          aggregate.errors.push({title:this.files[i].name, error:this.files[i].error||'Erreur'});
          aggregate.per_file.push({filename:this.files[i].name, report:{status:'error'}});
        }
        this.progress = Math.round(((i+1)/this.files.length)*100);
      }
      this.report = aggregate;
      this.busy = false;
    },
    async doUrl() {
      this.busy = true; this.urlError = ''; this.report = null; this.progress = 40;
      try {
        const r = await fetch('/api/import/url', {
          method:'POST', headers:{'Content-Type':'application/json','X-CSRF-Token':this.csrf},
          body: JSON.stringify({url:this.urlValue.trim()})
        });
        const d = await r.json();
        if (!r.ok) { this.urlError = d.detail || 'Erreur'; return; }
        this.report = d; this.progress = 100;
      } catch { this.urlError = 'Erreur réseau'; }
      finally { this.busy = false; }
    },
    async doForge(kind) {
      this.busy = true; this.forgeError = ''; this.report = null; this.progress = 30;
      const endpoint = kind === 'repo' ? '/api/import/forge-repo' : '/api/import/forge';
      try {
        const r = await fetch(endpoint, {
          method:'POST', headers:{'Content-Type':'application/json','X-CSRF-Token':this.csrf},
          body: JSON.stringify({
            provider:this.forgeProvider, owner:this.forgeOwner.trim(),
            repo:this.forgeRepo.trim(), state:this.forgeState
          })
        });
        const d = await r.json();
        if (!r.ok) { this.forgeError = d.detail || 'Erreur'; return; }
        this.report = d; this.progress = 100;
      } catch { this.forgeError = 'Erreur réseau'; }
      finally { this.busy = false; }
    },
    async pollJob(jobId, f) {
      for (let i=0;i<600;i++) {
        await new Promise(res => setTimeout(res, 700));
        const r = await fetch('/api/import/jobs/'+jobId);
        const j = await r.json();
        if (j.status === 'done') { if (f) f.status='done'; return j.report; }
        if (j.status === 'error') { if (f) { f.status='error'; f.error=j.error; } return null; }
      }
      if (f) { f.status='error'; f.error='Délai dépassé'; }
      return null;
    },
    downloadReport() {
      const blob = new Blob([JSON.stringify(this.report, null, 2)], {type:'application/json'});
      const a = document.createElement('a');
      a.href = URL.createObjectURL(blob);
      a.download = 'flowdeck-import-report.json';
      a.click();
      URL.revokeObjectURL(a.href);
    }
  };
}