<?php

namespace App\Http\Controllers\Api\V1;

use App\Http\Controllers\Controller;
use App\Models\Project;
use Illuminate\Http\Request;

class ProjectApiController extends Controller
{
    /** Projects the authenticated user can access. */
    public function index(Request $request)
    {
        $projects = Project::accessibleBy($request->user())
            ->orderBy('name')
            ->get(['id', 'reference', 'name', 'address', 'status', 'lat', 'lng', 'updated_at']);

        return response()->json(['projects' => $projects]);
    }

    /**
     * Offline bundle for one project (Milestone 2 — minimal: structure, no media yet).
     */
    public function bundle(Request $request, Project $project)
    {
        $user = $request->user();
        abort_unless(
            $user->can('manage all') || $project->users()->where('user_id', $user->id)->exists(),
            403
        );

        $project->load([
            'phases' => fn ($q) => $q->orderBy('order'),
            'phases.layers',
            'phases.layers.features',
        ]);

        $layers   = $project->phases->flatMap->layers;
        $features = $layers->flatMap->features;

        return response()->json([
            'server_time' => now()->toIso8601String(),
            'project' => [
                'id'         => $project->id,
                'reference'  => $project->reference,
                'name'       => $project->name,
                'address'    => $project->address,
                'lat'        => $project->lat,
                'lng'        => $project->lng,
                'status'     => $project->status,
                'updated_at' => $project->updated_at?->toIso8601String(),
            ],
            'phases' => $project->phases->map(fn ($p) => [
                'id'               => $p->id,
                'name'             => $p->name,
                'order'            => $p->order,
                'color'            => $p->color,
                'progress_percent' => $p->progress_percent,
                'updated_at'       => $p->updated_at?->toIso8601String(),
            ])->values(),
            'layers' => $layers->map(fn ($l) => [
                'id'         => $l->id,
                'phase_id'   => $l->phase_id,
                'name'       => $l->name,
                'color'      => $l->color,
                'updated_at' => $l->updated_at?->toIso8601String(),
            ])->values(),
            'features' => $features->map(fn ($f) => [
                'id'         => $f->id,
                'layer_id'   => $f->layer_id,
                'name'       => $f->name,
                'geometry'   => $f->geometry,
                'status'     => $f->status,
                'progress'   => $f->progress,
                'updated_at' => $f->updated_at?->toIso8601String(),
            ])->values(),
        ]);
    }
}