251127:1700 Frontend Start Build
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165
frontend/app/(auth)/login/page.tsx
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165
frontend/app/(auth)/login/page.tsx
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// File: app/(auth)/login/page.tsx
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"use client";
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import { useState } from "react";
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import { useForm } from "react-hook-form";
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import { zodResolver } from "@hookform/resolvers/zod";
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import * as z from "zod";
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import { signIn } from "next-auth/react";
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import { useRouter } from "next/navigation";
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import { Eye, EyeOff, Loader2 } from "lucide-react";
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import { Button } from "@/components/ui/button";
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import {
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Card,
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CardContent,
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CardDescription,
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CardFooter,
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CardHeader,
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CardTitle,
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} from "@/components/ui/card";
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import { Input } from "@/components/ui/input";
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import { Label } from "@/components/ui/label";
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// กำหนด Schema สำหรับตรวจสอบข้อมูลฟอร์ม
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const loginSchema = z.object({
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username: z.string().min(1, "กรุณาระบุชื่อผู้ใช้งาน"),
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password: z.string().min(1, "กรุณาระบุรหัสผ่าน"),
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});
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type LoginValues = z.infer<typeof loginSchema>;
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export default function LoginPage() {
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const router = useRouter();
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const [isLoading, setIsLoading] = useState(false);
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const [showPassword, setShowPassword] = useState(false);
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// ตั้งค่า React Hook Form
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const {
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register,
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handleSubmit,
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formState: { errors },
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} = useForm<LoginValues>({
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resolver: zodResolver(loginSchema),
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defaultValues: {
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username: "",
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password: "",
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},
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});
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// ฟังก์ชันเมื่อกด Submit
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async function onSubmit(data: LoginValues) {
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setIsLoading(true);
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try {
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// เรียกใช้ NextAuth signIn (Credential Provider)
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// หมายเหตุ: เรายังไม่ได้ตั้งค่า AuthOption ใน route.ts แต่นี่คือโค้ดฝั่ง Client ที่ถูกต้อง
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const result = await signIn("credentials", {
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username: data.username,
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password: data.password,
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redirect: false, // เราจะจัดการ Redirect เอง
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});
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if (result?.error) {
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// กรณี Login ไม่สำเร็จ
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console.error("Login failed:", result.error);
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// TODO: เปลี่ยนเป็น Toast Notification ในอนาคต
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alert("เข้าสู่ระบบไม่สำเร็จ: ชื่อผู้ใช้งานหรือรหัสผ่านไม่ถูกต้อง");
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return;
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}
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// Login สำเร็จ -> ไปหน้า Dashboard
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router.push("/dashboard");
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router.refresh(); // Refresh เพื่อให้ Server Component รับรู้ Session ใหม่
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} catch (error) {
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console.error("Login error:", error);
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alert("เกิดข้อผิดพลาดที่ไม่คาดคิด");
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} finally {
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setIsLoading(false);
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}
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}
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return (
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<Card className="w-full max-w-sm shadow-lg">
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<CardHeader className="space-y-1 text-center">
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<CardTitle className="text-2xl font-bold text-primary">
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LCBP3 DMS
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</CardTitle>
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<CardDescription>
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กรอกชื่อผู้ใช้งานและรหัสผ่านเพื่อเข้าสู่ระบบ
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</CardDescription>
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</CardHeader>
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<form onSubmit={handleSubmit(onSubmit)}>
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<CardContent className="grid gap-4">
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{/* Username Field */}
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<div className="grid gap-2">
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<Label htmlFor="username">ชื่อผู้ใช้งาน</Label>
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<Input
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id="username"
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placeholder="username"
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type="text"
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autoCapitalize="none"
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autoComplete="username"
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autoCorrect="off"
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disabled={isLoading}
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className={errors.username ? "border-destructive" : ""}
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{...register("username")}
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/>
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{errors.username && (
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<p className="text-xs text-destructive">
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{errors.username.message}
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</p>
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)}
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</div>
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{/* Password Field */}
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<div className="grid gap-2">
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<Label htmlFor="password">รหัสผ่าน</Label>
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<div className="relative">
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<Input
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id="password"
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placeholder="••••••••"
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type={showPassword ? "text" : "password"}
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autoComplete="current-password"
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disabled={isLoading}
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className={errors.password ? "border-destructive pr-10" : "pr-10"}
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{...register("password")}
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/>
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{/* ปุ่ม Show/Hide Password */}
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<Button
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type="button"
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variant="ghost"
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size="sm"
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className="absolute right-0 top-0 h-full px-3 py-2 hover:bg-transparent"
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onClick={() => setShowPassword(!showPassword)}
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disabled={isLoading}
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>
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{showPassword ? (
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<EyeOff className="h-4 w-4 text-muted-foreground" />
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) : (
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<Eye className="h-4 w-4 text-muted-foreground" />
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)}
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<span className="sr-only">
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{showPassword ? "Hide password" : "Show password"}
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</span>
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</Button>
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</div>
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{errors.password && (
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<p className="text-xs text-destructive">
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{errors.password.message}
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</p>
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)}
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</div>
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</CardContent>
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<CardFooter>
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<Button className="w-full" type="submit" disabled={isLoading}>
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{isLoading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
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เข้าสู่ระบบ
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</Button>
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</CardFooter>
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</form>
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</Card>
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);
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}
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