<?php

namespace App\Http\Controllers\User;

use App\Http\Controllers\Controller;
use App\Http\Requests\User\CreateProjectRequest;
use App\Jobs\TranscribeAudioJob;
use App\Models\TranscriptionProject;
use App\Services\AuditLogService;
use App\Services\StorageService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Auth;
use Illuminate\View\View;

class ProjectController extends Controller
{
    public function create(): View
    {
        $this->authorize('create', TranscriptionProject::class);

        return view('user.projects.create');
    }

    public function store(CreateProjectRequest $request, StorageService $storage, AuditLogService $audit): RedirectResponse
    {
        $this->authorize('create', TranscriptionProject::class);

        $file = $request->file('audio');
        $uuid = (string) \Illuminate\Support\Str::uuid();
        $path = $storage->storeAudio($file, $uuid);

        $project = TranscriptionProject::create([
            'uuid'                 => $uuid,
            'title'                => $request->title,
            'description'          => $request->description,
            'owner_user_id'        => Auth::id(),
            'original_filename'    => $file->getClientOriginalName(),
            'stored_audio_path'    => $path,
            'mime_type'            => $file->getMimeType(),
            'file_size'            => $file->getSize(),
            'language'             => $request->language ?? 'ms',
            'transcription_status' => 'pending',
            'transcription_engine' => config('speech2text.transcription.engine'),
        ]);

        $audit->log('project_created', [
            'project_id' => $project->id,
            'new_values' => ['title' => $project->title, 'uuid' => $project->uuid],
        ]);

        $audit->log('audio_uploaded', [
            'project_id' => $project->id,
            'new_values' => [
                'original_filename' => $project->original_filename,
                'file_size'         => $project->file_size,
                'mime_type'         => $project->mime_type,
            ],
        ]);

        TranscribeAudioJob::dispatch($project);

        return redirect()->route('user.projects.show', $project)
            ->with('success', 'Projek berjaya dicipta. Audio sedang dalam barisan untuk ditranskripkan.');
    }

    public function show(TranscriptionProject $project): View
    {
        $this->authorize('view', $project);

        $project->load(['owner', 'collaborators.department', 'transcriptVersions.editor', 'comments.user']);

        return view('user.projects.show', compact('project'));
    }

    // Endpoint polling status — JSON, tidak mendedahkan transcript
    public function status(TranscriptionProject $project): JsonResponse
    {
        $this->authorize('view', $project);

        return response()->json([
            'status'           => $project->transcription_status,
            'duration_seconds' => $project->duration_seconds,
            'processed_at'     => $project->processed_at?->format('d/m/Y H:i'),
            'error_message'    => $project->isFailed() ? $project->error_message : null,
        ]);
    }

    public function retry(TranscriptionProject $project, AuditLogService $audit): RedirectResponse
    {
        $this->authorize('retryTranscription', $project);

        $project->update([
            'transcription_status' => 'pending',
            'error_message'        => null,
        ]);

        $audit->log('transcription_started', [
            'project_id' => $project->id,
            'new_values' => ['retry' => true],
        ]);

        TranscribeAudioJob::dispatch($project);

        return back()->with('success', 'Transkripsi sedang dicuba semula.');
    }

    public function destroy(TranscriptionProject $project, AuditLogService $audit): RedirectResponse
    {
        $this->authorize('delete', $project);

        $audit->log('project_deleted', [
            'project_id' => $project->id,
            'old_values' => ['title' => $project->title, 'uuid' => $project->uuid],
        ]);

        $project->delete();

        return redirect()->route('user.dashboard')
            ->with('success', 'Projek berjaya dipadam.');
    }
}