import { Button } from '@/components/ui/button';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Badge } from '@/components/ui/badge';
import AppLayout from '@/layouts/app-layout';
import { type BreadcrumbItem } from '@/types';
import { Head, Link, router } from '@inertiajs/react';
import { ArrowLeft, Edit, Trash2, Key, Shield, Users } from 'lucide-react';
import { showConfirmation, showSuccess, showError } from '@/lib/toast';

interface Role {
    id: number;
    name: string;
}

interface Permission {
    id: number;
    name: string;
    guard_name: string;
    description?: string;
    roles?: Role[];
    roles_count?: number;
    created_at: string;
    updated_at: string;
}

interface Props {
    permissions: Permission;
}

export default function PermisosShow({ permissions }: Props) {
    // Handle case where permissions data is not loaded yet
    if (!permissions) {
        return (
            <AppLayout breadcrumbs={[{ title: 'Dashboard', href: '/dashboard' }, { title: 'Permisos', href: '/permissions' }]}>
                <div className="flex h-full flex-1 flex-col gap-6 rounded-xl p-6">
                    <div className="text-center">Cargando...</div>
                </div>
            </AppLayout>
        );
    }

    const breadcrumbs: BreadcrumbItem[] = [
        { title: 'Dashboard', href: '/dashboard' },
        { title: 'Permisos', href: '/permissions' },
        { title: permissions.name, href: `/permissions/${permissions.id}` },
    ];

    const handleDelete = () => {
        showConfirmation(
            `¿Estás seguro de que quieres eliminar el permiso "${permissions.name}"?`,
            () => {
                router.delete(`/permissions/${permissions.id}`, {
                    onSuccess: () => {
                        showSuccess('Permiso eliminado exitosamente');
                    },
                    onError: () => {
                        showError('Error al eliminar el permiso');
                    }
                });
            }
        );
    };

    const getPermissionCategory = (name: string) => {
        if (!name || typeof name !== 'string') {
            return { category: 'General', color: 'bg-gray-100 text-gray-800 dark:bg-gray-900/20 dark:text-gray-300' };
        }
        if (name.includes('user')) return { category: 'Usuarios', color: 'bg-blue-100 text-blue-800 dark:bg-blue-900/20 dark:text-blue-300' };
        if (name.includes('role')) return { category: 'Roles', color: 'bg-purple-100 text-purple-800 dark:bg-purple-900/20 dark:text-purple-300' };
        if (name.includes('permission')) return { category: 'Permisos', color: 'bg-emerald-100 text-emerald-800 dark:bg-emerald-900/20 dark:text-emerald-300' };
        if (name.includes('project')) return { category: 'Proyectos', color: 'bg-green-100 text-green-800 dark:bg-green-900/20 dark:text-green-300' };
        if (name.includes('category')) return { category: 'Categorías', color: 'bg-emerald-100 text-emerald-800 dark:bg-emerald-900/20 dark:text-emerald-300' };
        if (name.includes('institution')) return { category: 'Instituciones', color: 'bg-indigo-100 text-indigo-800 dark:bg-indigo-900/20 dark:text-indigo-300' };
        return { category: 'General', color: 'bg-gray-100 text-gray-800 dark:bg-gray-900/20 dark:text-gray-300' };
    };

    const { category, color } = getPermissionCategory(permissions.name);

    return (
        <AppLayout breadcrumbs={breadcrumbs}>
            <Head title={permissions.name} />

            <div className="flex h-full flex-1 flex-col gap-6 rounded-xl p-6">
                {/* Header */}
                <div className="flex flex-col sm:flex-row items-start sm:items-center justify-between gap-4">
                    <div className="flex items-center gap-4">
                        <div className="flex items-center gap-3">
                            <div className="p-2 bg-emerald-100 dark:bg-emerald-900/20 rounded-lg">
                                <Key className="w-6 h-6 text-emerald-600 dark:text-emerald-400" />
                            </div>
                            <div>
                                <h1 className="text-2xl sm:text-3xl font-bold text-emerald-700 dark:text-emerald-400">
                                    {permissions.name}
                                </h1>
                                <p className="text-slate-600 dark:text-slate-400 mt-2">
                                    Detalles del permiso
                                </p>
                            </div>
                        </div>
                    </div>
                    <div className="flex flex-wrap gap-2">
                        <Button variant="outline" asChild>
                            <Link href="/permissions">
                                <ArrowLeft className="w-4 h-4 mr-2" />
                                Volver
                            </Link>
                        </Button>
                        <Button variant="outline" asChild>
                            <Link href={`/permisos/${permissions.id}/edit`}>
                                <Edit className="w-4 h-4 mr-2" />
                                Editar
                            </Link>
                        </Button>
                        <Button
                            variant="destructive"
                            onClick={handleDelete}
                        >
                            <Trash2 className="w-4 h-4 mr-2" />
                            Eliminar
                        </Button>
                    </div>
                </div>

                {/* Permission Details */}
                <div className="w-auto space-y-6">
                    {/* Basic Information */}
                    <Card>
                        <CardHeader>
                            <CardTitle className="text-emerald-700 dark:text-emerald-400">
                                Información del Permiso
                            </CardTitle>
                            <CardDescription>
                                Detalles básicos del permiso
                            </CardDescription>
                        </CardHeader>
                        <CardContent className="space-y-6">
                            <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Nombre
                                    </label>
                                    <p className="mt-1 text-slate-700 dark:text-slate-300 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        {permissions.name}
                                    </p>
                                </div>

                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Guard Name
                                    </label>
                                    <p className="mt-1 text-slate-700 dark:text-slate-300 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        {permissions.guard_name}
                                    </p>
                                </div>

                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Categoría
                                    </label>
                                    <div className="mt-1 flex items-center gap-2 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        <Badge variant="secondary" className={color}>
                                            {category}
                                        </Badge>
                                    </div>
                                </div>

                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Roles Asignados
                                    </label>
                                    <div className="mt-1 flex items-center gap-2 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        <Shield className="w-4 h-4 text-slate-500" />
                                        <span className="text-slate-700 dark:text-slate-300">
                                            {permissions.roles?.length || 0} roles
                                        </span>
                                    </div>
                                </div>

                                {permissions.description && (
                                    <div className="md:col-span-2">
                                        <label className="text-sm font-medium text-slate-900 dark:text-white">
                                            Descripción
                                        </label>
                                        <p className="mt-1 text-slate-700 dark:text-slate-300 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                            {permissions.description}
                                        </p>
                                    </div>
                                )}
                            </div>
                        </CardContent>
                    </Card>

                    {/* Roles */}
                    {permissions.roles && permissions.roles.length > 0 && (
                        <Card>
                            <CardHeader>
                                <CardTitle className="text-emerald-700 dark:text-emerald-400">
                                    Roles con este Permiso
                                </CardTitle>
                                <CardDescription>
                                    Lista de roles que tienen asignado este permiso
                                </CardDescription>
                            </CardHeader>
                            <CardContent>
                                <div className="flex flex-wrap gap-2">
                                    {permissions.roles.map((role) => (
                                        <Badge key={role.id} variant="secondary" className="px-3 py-1">
                                            <Shield className="w-3 h-3 mr-1" />
                                            {role.name}
                                        </Badge>
                                    ))}
                                </div>
                            </CardContent>
                        </Card>
                    )}

                    {/* Timestamps */}
                    <Card>
                        <CardHeader>
                            <CardTitle className="text-emerald-700 dark:text-emerald-400">
                                Información del Sistema
                            </CardTitle>
                        </CardHeader>
                        <CardContent>
                            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Fecha de Creación
                                    </label>
                                    <p className="mt-1 text-slate-700 dark:text-slate-300 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        {new Date(permissions.created_at).toLocaleDateString('es-ES', {
                                            year: 'numeric',
                                            month: 'long',
                                            day: 'numeric',
                                            hour: '2-digit',
                                            minute: '2-digit'
                                        })}
                                    </p>
                                </div>
                                <div>
                                    <label className="text-sm font-medium text-slate-900 dark:text-white">
                                        Última Actualización
                                    </label>
                                    <p className="mt-1 text-slate-700 dark:text-slate-300 bg-slate-50 dark:bg-slate-800/50 p-3 rounded-lg">
                                        {new Date(permissions.updated_at).toLocaleDateString('es-ES', {
                                            year: 'numeric',
                                            month: 'long',
                                            day: 'numeric',
                                            hour: '2-digit',
                                            minute: '2-digit'
                                        })}
                                    </p>
                                </div>
                            </div>
                        </CardContent>
                    </Card>
                </div>
            </div>
        </AppLayout>
    );
}