<?php

namespace App\Http\Controllers\Supervisor;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Supervisor\Concerns\ScopesSupervisorResources;
use App\Models\Establishment;
use App\Services\GeocodingService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;
use Inertia\Inertia;
use Inertia\Response;

class OrganizationPageController extends Controller
{
    use ScopesSupervisorResources;

    public function __construct(private GeocodingService $geocoding) {}

    public function index(Request $request): Response
    {
        $supervisor = $this->supervisor();

        $baseQuery = Establishment::query()
            ->where('organization_id', $supervisor->organization_id);

        if ($supervisor->establishment_id !== null) {
            $baseQuery->where('id', $supervisor->establishment_id);
        }

        $totalCount = (clone $baseQuery)->count();
        $viewMode = $totalCount === 1 ? 'single' : 'list';

        $canManageEstablishments = $this->canManageEstablishments();
        $canCreateEstablishments = $this->canCreateEstablishments();

        if ($viewMode === 'single') {
            $establishment = (clone $baseQuery)->withCount('machines')->first();

            return Inertia::render('Supervisor/Organizations/Index', [
                'establishments' => [$this->formatEstablishment($establishment)],
                'viewMode' => 'single',
                'canManageEstablishments' => $canManageEstablishments,
                'canCreateEstablishments' => $canCreateEstablishments,
                'filters' => [],
            ]);
        }

        $query = (clone $baseQuery)->withCount('machines');

        if ($request->filled('search')) {
            $search = $request->string('search');
            $query->where(function ($builder) use ($search) {
                $builder->where('name', 'like', "%{$search}%")
                    ->orWhere('address', 'like', "%{$search}%")
                    ->orWhere('city', 'like', "%{$search}%")
                    ->orWhere('zip_code', 'like', "%{$search}%");
            });
        }

        if ($request->has('is_active') && $request->string('is_active')->toString() !== '') {
            $query->where('is_active', $request->boolean('is_active'));
        }

        $establishments = $query
            ->tap(fn ($builder) => $this->applySort($request, $builder, [
                'name' => 'name',
                'city' => 'city',
                'machines_count' => 'machines_count',
                'is_active' => 'is_active',
            ], 'name', 'asc'))
            ->paginate($this->supervisorListPerPage($request))
            ->withQueryString()
            ->through(fn (Establishment $establishment) => $this->formatEstablishment($establishment));

        return Inertia::render('Supervisor/Organizations/Index', [
            'establishments' => $establishments,
            'viewMode' => 'list',
            'canManageEstablishments' => $canManageEstablishments,
            'canCreateEstablishments' => $canCreateEstablishments,
            'filters' => [
                'search' => $request->string('search')->toString() ?: null,
                'is_active' => $request->has('is_active') && $request->string('is_active')->toString() !== ''
                    ? ($request->boolean('is_active') ? '1' : '0')
                    : null,
                'sort' => $request->string('sort')->toString() ?: 'name',
                'direction' => $request->string('direction')->toString() === 'desc' ? 'desc' : 'asc',
                'per_page' => $this->supervisorListPerPage($request),
            ],
        ]);
    }

    public function searchAddresses(Request $request): JsonResponse
    {
        abort_unless($this->canManageEstablishments(), 403);

        $validated = $request->validate([
            'q' => ['required', 'string', 'min:3', 'max:200'],
        ]);

        return response()->json(
            $this->geocoding->search($validated['q']),
        );
    }

    public function storeEstablishment(Request $request): RedirectResponse
    {
        abort_unless($this->canManageEstablishments(), 403);
        abort_if($this->supervisor()->establishment_id !== null, 403);

        $validated = $this->prepareEstablishmentData(
            $request->validate($this->establishmentRules()),
        );
        $validated['organization_id'] = $this->supervisor()->organization_id;

        Establishment::query()->create($validated);

        return redirect()->route('supervisor.organizations.index')
            ->with('success', 'Enseigne créée.');
    }

    public function updateEstablishment(Request $request, int $id): RedirectResponse
    {
        abort_unless($this->canManageEstablishments(), 403);

        $establishment = $this->findAccessibleEstablishment($id);
        $validated = $this->prepareEstablishmentData(
            $request->validate($this->establishmentRules()),
        );

        if (! empty($validated['is_active']) && ! $establishment->is_active) {
            $this->validateEstablishmentReadyForActivation($validated, $establishment);
        }

        $establishment->update($validated);

        return redirect()->route('supervisor.organizations.index')
            ->with('success', 'Enseigne mise à jour.');
    }

    public function toggleEstablishmentActive(int $id): RedirectResponse
    {
        abort_unless($this->canManageEstablishments(), 403);

        $establishment = $this->findAccessibleEstablishment($id);
        $isActive = ! $establishment->is_active;

        if ($isActive) {
            $this->validateEstablishmentReadyForActivation([
                'name' => $establishment->name,
                'address' => $establishment->address,
                'timezone' => $establishment->timezone,
            ], $establishment);
        }

        $establishment->update(['is_active' => $isActive]);

        return redirect()->route('supervisor.organizations.index')
            ->with('success', $isActive ? 'Enseigne réactivée.' : 'Enseigne désactivée.');
    }

    /**
     * @return array<string, mixed>
     */
    private function formatEstablishment(Establishment $establishment): array
    {
        return [
            'id' => $establishment->id,
            'uuid' => $establishment->uuid,
            'name' => $establishment->name,
            'address' => $establishment->address,
            'city' => $establishment->city,
            'zip_code' => $establishment->zip_code,
            'latitude' => $establishment->latitude !== null ? (float) $establishment->latitude : null,
            'longitude' => $establishment->longitude !== null ? (float) $establishment->longitude : null,
            'timezone' => $establishment->timezone,
            'is_active' => $establishment->is_active,
            'machines_count' => $establishment->machines_count,
        ];
    }

    /**
     * @return array<string, mixed>
     */
    private function establishmentRules(): array
    {
        return [
            'name' => ['required', 'string', 'max:200'],
            'address' => ['required', 'string'],
            'city' => ['nullable', 'string', 'max:100'],
            'zip_code' => ['nullable', 'string', 'max:10'],
            'timezone' => ['required', 'string', 'max:50'],
            'is_active' => ['boolean'],
        ];
    }

    /**
     * @param  array<string, mixed>  $validated
     * @return array<string, mixed>
     */
    private function prepareEstablishmentData(array $validated): array
    {
        $coordinates = $this->geocoding->geocode(
            $validated['address'],
            $validated['city'] ?? null,
            $validated['zip_code'] ?? null,
        );

        $validated['latitude'] = $coordinates['latitude'] ?? null;
        $validated['longitude'] = $coordinates['longitude'] ?? null;

        return $validated;
    }

    private function findAccessibleEstablishment(int $id): Establishment
    {
        $supervisor = $this->supervisor();

        return Establishment::query()
            ->where('id', $id)
            ->where('organization_id', $supervisor->organization_id)
            ->when($supervisor->establishment_id, fn ($query) => $query->where('id', $supervisor->establishment_id))
            ->firstOrFail();
    }

    private function canCreateEstablishments(): bool
    {
        $supervisor = $this->supervisor();

        if ($supervisor->role === 'viewer') {
            return false;
        }

        return in_array($supervisor->role, ['owner', 'platform_admin'], true)
            && $supervisor->establishment_id === null;
    }

    private function canManageEstablishments(): bool
    {
        return $this->supervisor()->role !== 'viewer';
    }

    /**
     * @param  array<string, mixed>  $data
     */
    private function validateEstablishmentReadyForActivation(array $data, Establishment $establishment): void
    {
        $validator = validator(
            $data,
            [
                'name' => ['required', 'string', 'max:200'],
                'address' => ['required', 'string'],
                'timezone' => ['required', 'string', 'max:50'],
            ],
            [
                'name.required' => 'Le nom est requis pour réactiver l\'enseigne.',
                'address.required' => 'L\'adresse est requise pour réactiver l\'enseigne.',
                'timezone.required' => 'Le fuseau horaire est requis pour réactiver l\'enseigne.',
            ],
        );

        if ($validator->fails()) {
            throw ValidationException::withMessages($validator->errors()->toArray());
        }

        $establishment->loadMissing('organization');

        if (! $establishment->organization?->is_active) {
            throw ValidationException::withMessages([
                'is_active' => 'L\'organisation doit être active pour réactiver cette enseigne.',
            ]);
        }
    }
}