<?php

namespace App\Http\Controllers;

use App\Models\PendingSync;
use App\Models\Phase;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class OfflineSyncController extends Controller
{
    public function storePending(Request $request)
    {
        $payload = $request->validate([
            'action' => 'required|in:progress_update,task_complete',
            'payload' => 'required|array',
        ]);
        $pending = PendingSync::create([
            'user_id' => Auth::id() ?? 1,
            'action' => $payload['action'],
            'payload' => $payload['payload'],
        ]);
        return response()->json(['queued' => true]);
    }

    public function sync(Request $request)
    {
        $user = Auth::user();
        $pendings = PendingSync::where('user_id', $user->id)->whereNull('synced_at')->get();
        foreach ($pendings as $pending) {
            if ($pending->action === 'progress_update') {
                $phase = Phase::find($pending->payload['phase_id']);
                if ($phase) {
                    $phase->progress_percent = $pending->payload['progress'];
                    $phase->save();
                    $phase->progressUpdates()->create([
                        'user_id' => $user->id,
                        'progress_percent' => $pending->payload['progress'],
                        'comment' => $pending->payload['comment'] ?? '',
                        'location' => $pending->payload['location'] ?? null,
                    ]);
                }
            }
            $pending->synced_at = now();
            $pending->save();
        }
        return response()->json(['synced' => count($pendings)]);
    }
}