"use client";

import { useEffect, useState } from "react";
import { User, Mail, Building, Calendar, Shield, Briefcase, Globe, Phone } from "lucide-react";

import { Card, CardContent, CardHeader, CardTitle, CardDescription } from "@/components/ui/card";
import { Avatar, AvatarFallback } from "@/components/ui/avatar";
import { Badge } from "@/components/ui/badge";
import { Separator } from "@/components/ui/separator";
import { Skeleton } from "@/components/ui/skeleton";
import { getUser } from "@/lib/usersService";
import { getProjects } from "@/lib/projectsService";
import { Project } from "@/types/project";

interface DolibarrUser {
  id: string;
  login: string;
  firstname: string;
  lastname: string;
  email: string;
  admin: string;
  statut: string;
  employee: string;
  job: string;
  address: string;
  zip: string;
  town: string;
  state_id: string;
  office_phone: string;
  user_mobile: string;
  fk_member: string;
  datelastlogin: number;
  datepreviouslogin: number;
  datec: string;
  datem: string;
  fk_soc: string;
  entity: string;
}

export default function PerfilPage() {
  const [user, setUser] = useState<DolibarrUser | null>(null);
  const [projects, setProjects] = useState<Project[]>([]);
  const [isLoading, setIsLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    async function loadData() {
      try {
        const [userData, projectsData] = await Promise.all([
          getUser(),
          getProjects(),
        ]);
        setUser(userData);
        setProjects(projectsData);
      } catch (err) {
        console.error("Error loading profile data:", err);
        setError("No se pudo cargar la información del perfil");
      } finally {
        setIsLoading(false);
      }
    }
    loadData();
  }, []);

  if (isLoading) {
    return <ProfileSkeleton />;
  }

  if (error || !user) {
    return (
      <div className="p-6">
        <div className="flex flex-col items-center justify-center py-12 text-center">
          <User className="h-12 w-12 text-muted-foreground mb-4" />
          <h2 className="text-lg font-semibold mb-2">Error al cargar el perfil</h2>
          <p className="text-sm text-muted-foreground">{error}</p>
        </div>
      </div>
    );
  }

  const fullName = `${user.firstname} ${user.lastname}`;
  const initials = `${user.firstname?.charAt(0) || ""}${user.lastname?.charAt(0) || ""}`;
  const isAdmin = user.admin === "1";
  const isActive = user.statut === "1";
  const isEmployee = user.employee === "1";

  // Stats from projects
  const activeProjects = projects.filter((p) => p.status === "1").length;
  const completedProjects = projects.filter((p) => p.status === "2").length;
  const totalBudget = projects.reduce((acc, p) => acc + (p.budget || 0), 0);

  const formatDate = (timestamp: number | string) => {
    if (!timestamp) return "N/A";
    const ts = typeof timestamp === "string" ? parseInt(timestamp) : timestamp;
    const date = new Date(ts * 1000);
    return date.toLocaleDateString("es-ES", {
      day: "2-digit",
      month: "long",
      year: "numeric",
      hour: "2-digit",
      minute: "2-digit",
    });
  };

  return (
    <div className="p-6 space-y-6 max-w-4xl mx-auto">
      {/* Header */}
      <div>
        <h1 className="text-2xl font-bold tracking-tight">Mi Perfil</h1>
        <p className="text-muted-foreground">Información de tu cuenta de Dolibarr</p>
      </div>

      {/* Profile card */}
      <Card>
        <CardContent className="p-6">
          <div className="flex flex-col sm:flex-row items-center sm:items-start gap-6">
            {/* Avatar */}
            <Avatar className="h-24 w-24 text-2xl">
              <AvatarFallback className="bg-gradient-to-br from-blue-500 to-purple-600 text-white text-2xl">
                {initials}
              </AvatarFallback>
            </Avatar>

            {/* Info */}
            <div className="flex-1 text-center sm:text-left space-y-3">
              <div>
                <h2 className="text-2xl font-bold">{fullName}</h2>
                <p className="text-muted-foreground">@{user.login}</p>
              </div>
              <div className="flex flex-wrap items-center justify-center sm:justify-start gap-2">
                <Badge variant={isActive ? "default" : "secondary"} className={isActive ? "bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200" : ""}>
                  {isActive ? "Activo" : "Inactivo"}
                </Badge>
                {isAdmin && (
                  <Badge variant="outline" className="bg-amber-50 text-amber-700 border-amber-200 dark:bg-amber-950 dark:text-amber-300 dark:border-amber-800">
                    <Shield className="h-3 w-3 mr-1" />
                    Administrador
                  </Badge>
                )}
                {isEmployee && (
                  <Badge variant="outline">
                    <Briefcase className="h-3 w-3 mr-1" />
                    Empleado
                  </Badge>
                )}
              </div>
            </div>
          </div>
        </CardContent>
      </Card>

      {/* Stats */}
      <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
        <Card>
          <CardContent className="p-4 text-center">
            <p className="text-3xl font-bold text-blue-600">{activeProjects}</p>
            <p className="text-sm text-muted-foreground">Proyectos activos</p>
          </CardContent>
        </Card>
        <Card>
          <CardContent className="p-4 text-center">
            <p className="text-3xl font-bold text-green-600">{completedProjects}</p>
            <p className="text-sm text-muted-foreground">Proyectos completados</p>
          </CardContent>
        </Card>
        <Card>
          <CardContent className="p-4 text-center">
            <p className="text-3xl font-bold bg-gradient-to-r from-blue-500 to-purple-600 bg-clip-text text-transparent">
              {totalBudget.toLocaleString("es-ES")} &euro;
            </p>
            <p className="text-sm text-muted-foreground">Presupuesto total gestionado</p>
          </CardContent>
        </Card>
      </div>

      {/* Details */}
      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
        {/* Contact info */}
        <Card>
          <CardHeader>
            <CardTitle className="text-lg">Informaci&oacute;n de Contacto</CardTitle>
            <CardDescription>Datos de contacto registrados en Dolibarr</CardDescription>
          </CardHeader>
          <CardContent className="space-y-4">
            <InfoRow icon={Mail} label="Email" value={user.email || "No configurado"} />
            <Separator />
            <InfoRow icon={Phone} label="Tel&eacute;fono oficina" value={user.office_phone || "No configurado"} />
            <Separator />
            <InfoRow icon={Phone} label="M&oacute;vil" value={user.user_mobile || "No configurado"} />
            <Separator />
            <InfoRow icon={Briefcase} label="Puesto" value={user.job || "No configurado"} />
          </CardContent>
        </Card>

        {/* Account info */}
        <Card>
          <CardHeader>
            <CardTitle className="text-lg">Informaci&oacute;n de la Cuenta</CardTitle>
            <CardDescription>Detalles de tu cuenta en el sistema</CardDescription>
          </CardHeader>
          <CardContent className="space-y-4">
            <InfoRow icon={User} label="ID de usuario" value={`#${user.id}`} />
            <Separator />
            <InfoRow icon={Globe} label="Entidad" value={user.entity || "1"} />
            <Separator />
            <InfoRow
              icon={Calendar}
              label="&Uacute;ltimo acceso"
              value={user.datelastlogin ? formatDate(user.datelastlogin) : "N/A"}
            />
            <Separator />
            <InfoRow
              icon={Calendar}
              label="Acceso anterior"
              value={user.datepreviouslogin ? formatDate(user.datepreviouslogin) : "N/A"}
            />
          </CardContent>
        </Card>
      </div>

      {/* Address */}
      {(user.address || user.town || user.zip) && (
        <Card>
          <CardHeader>
            <CardTitle className="text-lg">Direcci&oacute;n</CardTitle>
          </CardHeader>
          <CardContent>
            <div className="flex items-start gap-3">
              <Building className="h-5 w-5 text-muted-foreground mt-0.5" />
              <div className="text-sm">
                {user.address && <p>{user.address}</p>}
                {(user.zip || user.town) && (
                  <p className="text-muted-foreground">
                    {[user.zip, user.town].filter(Boolean).join(", ")}
                  </p>
                )}
              </div>
            </div>
          </CardContent>
        </Card>
      )}
    </div>
  );
}

// Reusable info row component
function InfoRow({ icon: Icon, label, value }: { icon: React.ComponentType<{ className?: string }>; label: string; value: string }) {
  return (
    <div className="flex items-center gap-3">
      <Icon className="h-4 w-4 text-muted-foreground flex-shrink-0" />
      <div className="flex-1 min-w-0">
        <p className="text-xs text-muted-foreground">{label}</p>
        <p className="text-sm font-medium truncate">{value}</p>
      </div>
    </div>
  );
}

// Skeleton
function ProfileSkeleton() {
  return (
    <div className="p-6 space-y-6 max-w-4xl mx-auto">
      <div>
        <Skeleton className="h-8 w-48 mb-2" />
        <Skeleton className="h-4 w-72" />
      </div>
      <Card>
        <CardContent className="p-6">
          <div className="flex flex-col sm:flex-row items-center sm:items-start gap-6">
            <Skeleton className="h-24 w-24 rounded-full" />
            <div className="space-y-3 flex-1">
              <Skeleton className="h-8 w-48" />
              <Skeleton className="h-4 w-32" />
              <div className="flex gap-2">
                <Skeleton className="h-6 w-16" />
                <Skeleton className="h-6 w-28" />
              </div>
            </div>
          </div>
        </CardContent>
      </Card>
      <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
        {[1, 2, 3].map((i) => (
          <Card key={i}>
            <CardContent className="p-4 text-center space-y-2">
              <Skeleton className="h-8 w-16 mx-auto" />
              <Skeleton className="h-4 w-32 mx-auto" />
            </CardContent>
          </Card>
        ))}
      </div>
      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
        {[1, 2].map((i) => (
          <Card key={i}>
            <CardHeader>
              <Skeleton className="h-6 w-48" />
              <Skeleton className="h-4 w-64" />
            </CardHeader>
            <CardContent className="space-y-4">
              {[1, 2, 3, 4].map((j) => (
                <div key={j}>
                  <Skeleton className="h-10 w-full" />
                </div>
              ))}
            </CardContent>
          </Card>
        ))}
      </div>
    </div>
  );
}