<?php

namespace App\Http\Controllers;

use App\Enums\FieldType;
use App\Http\Requests\StoreReleveRequest;
use App\Http\Requests\UpdateReleveRequest;
use App\Models\Releve;
use App\Models\Source;
use Illuminate\Http\RedirectResponse;
use Illuminate\View\View;

class ReleveController extends Controller
{
    public function index(Source $source): View
    {
        $this->authorize('viewAny', [Releve::class, $source]);

        $source->load('sourceType.fields');

        // Keyset pagination sur id (évite le COUNT sur des millions de lignes)
        $releves = $source->releves()
            ->orderBy('id')
            ->cursorPaginate(25);

        return view('releves.index', compact('source', 'releves'));
    }

    public function create(Source $source): View
    {
        $this->authorize('create', [Releve::class, $source]);

        $source->load('sourceType.fields');

        return view('releves.create', compact('source'));
    }

    public function store(StoreReleveRequest $request, Source $source): RedirectResponse
    {
        $data = $this->buildData($request->validated()['data'] ?? [], $source);

        $source->releves()->create([
            'data'       => $data,
            'created_by' => $request->user()->id,
            'updated_by' => $request->user()->id,
        ]);

        return redirect()->route('sources.releves.index', $source)
            ->with('success', 'Relevé ajouté.');
    }

    public function show(Source $source, Releve $releve): View
    {
        $this->authorize('view', $releve);

        $source->load('sourceType.fields');
        $releve->load('createur', 'modificateur');

        return view('releves.show', compact('source', 'releve'));
    }

    public function edit(Source $source, Releve $releve): View
    {
        $this->authorize('update', $releve);

        $source->load('sourceType.fields');

        return view('releves.edit', compact('source', 'releve'));
    }

    public function update(UpdateReleveRequest $request, Source $source, Releve $releve): RedirectResponse
    {
        $data = $this->buildData($request->validated()['data'] ?? [], $source);

        $releve->update([
            'data'       => $data,
            'updated_by' => $request->user()->id,
        ]);

        return redirect()->route('sources.releves.show', [$source, $releve])
            ->with('success', 'Relevé mis à jour.');
    }

    public function destroy(Source $source, Releve $releve): RedirectResponse
    {
        $this->authorize('delete', $releve);

        $releve->delete();

        return redirect()->route('sources.releves.index', $source)
            ->with('success', 'Relevé supprimé.');
    }

    // Normalise les données POST en structure JSONB propre
    private function buildData(array $raw, Source $source): array
    {
        $data = [];

        foreach ($source->sourceType->fields as $field) {
            $value = $raw[$field->name] ?? null;

            $data[$field->name] = match ($field->type) {
                FieldType::Boolean => (bool) ($value ?? false),
                FieldType::Number  => $value !== null && $value !== '' ? (float) $value : null,
                FieldType::Date    => [
                    'valeur'     => $value['valeur'] ?? null,
                    'calendrier' => $value['calendrier'] ?? 'gregorien',
                ],
                default => $value === '' ? null : $value,
            };
        }

        return $data;
    }
}