<?php

declare(strict_types=1);

namespace App\Http\Controllers\Api\V1\Admin;

use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\AdminInviteMemberRequest;
use App\Http\Requests\Admin\AdminUpdateMemberRoleRequest;
use App\Http\Requests\Admin\AdminUpdateOrganisationRequest;
use App\Http\Resources\Admin\AdminOrganisationResource;
use App\Http\Resources\Api\V1\MemberResource;
use App\Models\Organisation;
use App\Models\Person;
use App\Models\User;
use App\Models\UserInvitation;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Resources\Json\AnonymousResourceCollection;

final class AdminOrganisationController extends Controller
{
    public function index(): AnonymousResourceCollection
    {
        $query = Organisation::withoutGlobalScopes()
            ->withCount(['events', 'users']);

        if ($search = request('search')) {
            $query->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                    ->orWhere('slug', 'like', "%{$search}%");
            });
        }

        if ($billingStatus = request('billing_status')) {
            $query->where('billing_status', $billingStatus);
        }

        $sortBy = request('sort', 'name');
        $sortDirection = request('direction', 'asc');
        $query->orderBy(
            in_array($sortBy, ['name', 'created_at']) ? $sortBy : 'name',
            $sortDirection === 'desc' ? 'desc' : 'asc',
        );

        return AdminOrganisationResource::collection($query->paginate());
    }

    public function show(string $organisationId): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()
            ->withCount(['events', 'users'])
            ->findOrFail($organisationId);

        $organisation->total_persons = Person::withoutGlobalScopes()
            ->whereIn('event_id', $organisation->events()->select('id'))
            ->count();

        $members = $organisation->users()->orderBy('first_name')->get();

        return $this->success([
            'organisation' => new AdminOrganisationResource($organisation),
            'members' => MemberResource::collection($members),
        ]);
    }

    public function store(): void
    {
        // Organisations are created via the regular endpoint
        abort(405);
    }

    public function update(AdminUpdateOrganisationRequest $request, string $organisationId): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()->findOrFail($organisationId);

        $organisation->update($request->validated());

        activity('admin')
            ->causedBy(auth()->user())
            ->performedOn($organisation)
            ->event('admin.organisation.updated')
            ->withProperties($request->validated())
            ->log('Updated organisation ' . $organisation->name);

        $organisation->loadCount(['events', 'users']);

        return $this->success(new AdminOrganisationResource($organisation));
    }

    public function destroy(string $organisationId): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()->findOrFail($organisationId);

        activity('admin')
            ->causedBy(auth()->user())
            ->performedOn($organisation)
            ->event('admin.organisation.deleted')
            ->log('Deleted organisation ' . $organisation->name);

        $organisation->delete();

        return response()->json(null, 204);
    }

    public function invite(AdminInviteMemberRequest $request, string $organisationId): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()->findOrFail($organisationId);
        $email = $request->validated('email');
        $role = $request->validated('role');

        // Check if already a member
        $existingMember = $organisation->users()->where('email', $email)->first();

        if ($existingMember) {
            return $this->error('Gebruiker is al lid van deze organisatie.', 422);
        }

        // If user with this email already exists, add directly
        $existingUser = User::where('email', $email)->first();

        if ($existingUser) {
            $organisation->users()->attach($existingUser, ['role' => $role]);

            activity('admin')
                ->causedBy(auth()->user())
                ->performedOn($organisation)
                ->event('admin.organisation.member_invited')
                ->withProperties(['email' => $email, 'role' => $role, 'direct' => true])
                ->log("Added existing user {$email} as {$role}");

            return $this->success(
                new MemberResource($organisation->users()->where('user_id', $existingUser->id)->first()),
                'Gebruiker direct toegevoegd als lid.',
            );
        }

        // Create invitation for unknown email
        $invitation = new UserInvitation(['email' => $email]);
        $invitation->invited_by_user_id = auth()->id();
        $invitation->organisation_id = $organisation->id;
        $invitation->role = $role;
        $invitation->token = hash('sha256', bin2hex(random_bytes(32)));
        $invitation->status = 'pending';
        $invitation->expires_at = now()->addDays(7);
        $invitation->save();

        activity('admin')
            ->causedBy(auth()->user())
            ->performedOn($organisation)
            ->event('admin.organisation.member_invited')
            ->withProperties(['email' => $email, 'role' => $role, 'direct' => false])
            ->log("Invited {$email} as {$role}");

        return $this->created(null, 'Uitnodiging aangemaakt.');
    }

    public function removeMember(string $organisationId, User $user): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()->findOrFail($organisationId);

        if (auth()->id() === $user->id) {
            return $this->error('Je kunt jezelf niet verwijderen.', 422);
        }

        if (!$organisation->users()->where('user_id', $user->id)->exists()) {
            return $this->notFound('Gebruiker is geen lid van deze organisatie.');
        }

        $organisation->users()->detach($user->id);

        activity('admin')
            ->causedBy(auth()->user())
            ->performedOn($organisation)
            ->event('admin.organisation.member_removed')
            ->withProperties(['user_id' => $user->id, 'email' => $user->email])
            ->log("Removed {$user->email} from organisation");

        return response()->json(null, 204);
    }

    public function updateMemberRole(AdminUpdateMemberRoleRequest $request, string $organisationId, User $user): JsonResponse
    {
        $organisation = Organisation::withoutGlobalScopes()->findOrFail($organisationId);

        if (!$organisation->users()->where('user_id', $user->id)->exists()) {
            return $this->notFound('Gebruiker is geen lid van deze organisatie.');
        }

        $organisation->users()->updateExistingPivot($user->id, [
            'role' => $request->validated('role'),
        ]);

        activity('admin')
            ->causedBy(auth()->user())
            ->performedOn($organisation)
            ->event('admin.organisation.member_role_updated')
            ->withProperties(['user_id' => $user->id, 'role' => $request->validated('role')])
            ->log("Updated role of {$user->email} to {$request->validated('role')}");

        return $this->success(
            new MemberResource($organisation->users()->where('user_id', $user->id)->first()),
        );
    }
}