<?php

namespace App\Http\Controllers;

use App\Enums\SourceStatus;
use App\Models\Releve;
use Illuminate\View\View;

class DashboardController extends Controller
{
    public function index(): View
    {
        $user = auth()->user();

        // ── Sources auxquelles je suis assigné ───────────────────────────────
        $mesSources = $user->sourcesAssignees()
            ->with('sourceType')
            ->withCount('releves')
            ->orderByRaw("CASE status
                WHEN 'en_cours'  THEN 0
                WHEN 'a_valider' THEN 1
                WHEN 'a_faire'   THEN 2
                WHEN 'termine'   THEN 3
                ELSE 4 END")
            ->get();

        // ── Mes derniers relevés ─────────────────────────────────────────────
        $mesReleves = Releve::with(['source.sourceType'])
            ->where('created_by', $user->id)
            ->orderByDesc('created_at')
            ->take(8)
            ->get();

        // ── Stats de section (membres et responsables) ───────────────────────
        $sectionsStats = null;

        if (! $user->isAdmin()) {
            $sections = $user->sections()
                ->with(['sources' => fn ($q) => $q
                    ->with('sourceType')
                    ->withCount('releves')
                    ->orderBy('nom'),
                ])
                ->get();

            if ($sections->isNotEmpty()) {
                $sectionsStats = $sections->map(function ($section) {
                    $sources = $section->sources;

                    $byStatus = collect(SourceStatus::cases())
                        ->mapWithKeys(fn ($s) => [
                            $s->value => $sources->filter(fn ($src) => $src->status === $s)->count(),
                        ]);

                    return [
                        'section'        => $section,
                        'total_sources'  => $sources->count(),
                        'by_status'      => $byStatus,
                        'total_releves'  => $sources->sum('releves_count'),
                        'sources_recentes' => $sources->sortByDesc('updated_at')->take(5),
                    ];
                });
            }
        }

        return view('dashboard', compact('mesSources', 'mesReleves', 'sectionsStats'));
    }
}