<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Department;
use App\Models\Employee;
use App\Models\Position;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\Rule;
use Inertia\Inertia;

class EmployeeController extends Controller
{
    public function index(Request $request)
    {
        $query = Employee::with(['user', 'department', 'position']);

        if ($request->search) {
            $query->where('nip', 'like', '%' . $request->search . '%')
                ->orWhereHas('user', function ($q) use ($request) {
                    $q->where('name', 'like', '%' . $request->search . '%');
                });
        }

        if ($request->department_id) {
            $query->where('department_id', $request->department_id);
        }

        return Inertia::render('admin/employees/index', [
            'employees'   => $query->latest()->get(),
            'departments' => Department::all(),
            'filters'     => $request->only(['search', 'department_id']),
        ]);
    }

    public function create()
    {
        return Inertia::render('admin/employees/create', [
            'departments' => Department::all(),
            'positions' => Position::all(),
        ]);
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|email|unique:users,email',
            'nip' => 'required|string|unique:employees,nip',
            'gender' => 'required|in:L,P',
            'place_of_birth' => 'nullable|string|max:255',
            'birth_date' => 'required|date',
            'address' => 'nullable|string',
            'phone_number' => 'nullable|string|max:20',
            'department_id' => 'required|exists:departments,id',
            'position_id' => 'required|exists:positions,id',
            'status' => 'required|in:PKWT,PKWTT,Magang',
            'join_date' => 'required|date',
        ], [
            'name.required' => 'Nama lengkap wajib diisi.',
            'name.max' => 'Nama lengkap maksimal 255 karakter.',
            'email.required' => 'Email wajib diisi.',
            'email.email' => 'Format email tidak valid.',
            'email.unique' => 'Email sudah digunakan oleh karyawan lain.',
            'nip.required' => 'NIP wajib diisi.',
            'nip.unique' => 'NIP sudah terdaftar.',
            'gender.required' => 'Jenis kelamin wajib dipilih.',
            'gender.in' => 'Jenis kelamin hanya boleh Laki-laki atau Perempuan.',
            'place_of_birth.max' => 'Tempat lahir maksimal 255 karakter.',
            'birth_date.required' => 'Tanggal lahir wajib diisi.',
            'birth_date.date' => 'Format tanggal lahir tidak valid.',
            'phone_number.max' => 'Nomor telepon maksimal 20 karakter.',
            'department_id.required' => 'Departemen wajib dipilih.',
            'department_id.exists' => 'Departemen tidak ditemukan.',
            'position_id.required' => 'Jabatan wajib dipilih.',
            'position_id.exists' => 'Jabatan tidak ditemukan.',
            'status.required' => 'Status kepegawaian wajib dipilih.',
            'status.in' => 'Status hanya boleh PKWT, PKWTT, atau Magang.',
            'join_date.required' => 'Tanggal masuk wajib diisi.',
            'join_date.date' => 'Format tanggal masuk tidak valid.',
        ]);

        $user = User::create([
            'name' => $validated['name'],
            'email' => $validated['email'],
            'password' => Hash::make('password'),
            'role' => 'employee',
        ]);

        $employee = Employee::create([
            'user_id' => $user->id,
            'nip' => $validated['nip'],
            'name' => $validated['name'],
            'gender' => $validated['gender'],
            'place_of_birth' => $validated['place_of_birth'],
            'birth_date' => $validated['birth_date'],
            'address' => $validated['address'],
            'phone_number' => $validated['phone_number'],
            'department_id' => $validated['department_id'],
            'position_id' => $validated['position_id'],
            'status' => $validated['status'],
            'join_date' => $validated['join_date'],
        ]);

        $user->update(['employee_id' => $employee->id]);

        return redirect()->route('admin.employees.index')
            ->with('success', 'Data karyawan berhasil ditambahkan.');
    }

    public function edit(Employee $employee)
    {
        $employee->load(['user', 'department', 'position']);

        return Inertia::render('admin/employees/edit', [
            'employee' => $employee,
            'departments' => Department::all(),
            'positions' => Position::all(),
        ]);
    }

    public function update(Request $request, Employee $employee)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'email' => ['required', 'email', Rule::unique('users')->ignore($employee->user_id)],
            'nip' => ['required', 'string', Rule::unique('employees')->ignore($employee->id)],
            'gender' => 'required|in:L,P',
            'place_of_birth' => 'nullable|string|max:255',
            'birth_date' => 'required|date',
            'address' => 'nullable|string',
            'phone_number' => 'nullable|string|max:20',
            'department_id' => 'required|exists:departments,id',
            'position_id' => 'required|exists:positions,id',
            'status' => 'required|in:PKWT,PKWTT,Magang',
            'join_date' => 'required|date',
        ], [
            'name.required' => 'Nama lengkap wajib diisi.',
            'name.max' => 'Nama lengkap maksimal 255 karakter.',
            'email.required' => 'Email wajib diisi.',
            'email.email' => 'Format email tidak valid.',
            'email.unique' => 'Email sudah digunakan oleh karyawan lain.',
            'nip.required' => 'NIP wajib diisi.',
            'nip.unique' => 'NIP sudah terdaftar.',
            'gender.required' => 'Jenis kelamin wajib dipilih.',
            'gender.in' => 'Jenis kelamin hanya boleh Laki-laki atau Perempuan.',
            'place_of_birth.max' => 'Tempat lahir maksimal 255 karakter.',
            'birth_date.required' => 'Tanggal lahir wajib diisi.',
            'birth_date.date' => 'Format tanggal lahir tidak valid.',
            'phone_number.max' => 'Nomor telepon maksimal 20 karakter.',
            'department_id.required' => 'Departemen wajib dipilih.',
            'department_id.exists' => 'Departemen tidak ditemukan.',
            'position_id.required' => 'Jabatan wajib dipilih.',
            'position_id.exists' => 'Jabatan tidak ditemukan.',
            'status.required' => 'Status kepegawaian wajib dipilih.',
            'status.in' => 'Status hanya boleh PKWT, PKWTT, atau Magang.',
            'join_date.required' => 'Tanggal masuk wajib diisi.',
            'join_date.date' => 'Format tanggal masuk tidak valid.',
        ]);

        $employee->user->update([
            'name' => $validated['name'],
            'email' => $validated['email'],
        ]);

        $employee->update($validated);

        return redirect()->route('admin.employees.index')
            ->with('success', 'Data karyawan diperbarui.');
    }

    public function destroy(Employee $employee)
    {
        $employee->user->delete();
        return back()->with('success', 'Karyawan dihapus.');
    }
}