<template>
  <div class="login-bg">
    <div class="login-card">
      <h1 class="login-title">Integrated Bio Foundry Platform</h1>
      <div class="login-form">
        <h2 class="login-signin">Sign In</h2>

        <!-- 에러 메시지 -->
        <div v-if="errorMessage" class="error-message">
          {{ errorMessage }}
        </div>

        <label class="login-label" for="userId">ID</label>
        <input
          id="userId"
          v-model="userId"
          class="login-input"
          type="text"
          placeholder="아이디를 입력하세요"
          :disabled="isLoading"
        />
        <label class="login-label" for="password">Password</label>
        <input
          id="password"
          v-model="password"
          class="login-input"
          type="password"
          placeholder="비밀번호를 입력하세요"
          :disabled="isLoading"
          @keyup.enter="signIn"
        />
        <button class="login-btn" :disabled="isLoading" @click="signIn">
          <span v-if="isLoading">로그인 중...</span>
          <span v-else>SIGN IN</span>
        </button>

        <!-- 테스트 계정 안내 -->
        <div class="test-accounts">
          <p class="test-title">테스트 계정:</p>
          <p class="test-account">관리자: admin / stam1201!</p>
          <p class="test-account">일반 사용자: user / stam1201!</p>
        </div>

        <!-- 회원 가입 페이지로 이동 링크 -->
        <div class="register-link">
          <p>
            계정이 없으신가요?
            <NuxtLink to="/register" class="link-text">회원 가입하기</NuxtLink>
          </p>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, onMounted } from "vue";
import { useRouter } from "vue-router";
import { useUserStore } from "~/stores/user";

// auth 레이아웃 사용
definePageMeta({
  layout: "auth",
});

const userId = ref("");
const password = ref("");
const errorMessage = ref("");
const isLoading = ref(false);
const router = useRouter();
const userStore = useUserStore();

// 이미 로그인된 경우 홈으로 리다이렉션
onMounted(() => {
  if (userStore.isLoggedIn) {
    router.push("/");
  }
});

async function signIn() {
  if (!userId.value || !password.value) {
    errorMessage.value = "아이디와 비밀번호를 입력해주세요.";
    return;
  }

  isLoading.value = true;
  errorMessage.value = "";

  const result = await userStore.login(userId.value, password.value);

  if (result.success) {
    await router.push("/");
  } else {
    errorMessage.value = result.error;
  }
  isLoading.value = false;
}
</script>

<style scoped>
.login-bg {
  width: 100vw;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fb;
  padding: 0;
}
.login-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 16px 40px 0 rgba(44, 62, 80, 0.08);
  padding: 40px 36px 32px 36px;
  min-width: 500px;
  max-width: 600px;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.login-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: #23272f;
  font-family: "Montserrat", "Pretendard", sans-serif;
}
.login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
}
.login-signin {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: #23272f;
}
.login-label {
  font-size: 0.95rem;
  margin-bottom: 4px;
  color: #6b7280;
  margin-top: 12px;
}
.login-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  background: #f1f5fb;
  margin-bottom: 4px;
  font-size: 1rem;
  outline: none;
  transition: border 0.2s;
}
.login-input:focus {
  border: 1.5px solid #4666e5;
}
.login-input:disabled {
  background: #f3f4f6;
  cursor: not-allowed;
}
.login-btn {
  width: 100%;
  margin-top: 20px;
  padding: 10px 0;
  background: #4666e5;
  color: #fff;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.login-btn:hover:not(:disabled) {
  background: #3451b2;
}
.login-btn:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}
.error-message {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.test-accounts {
  margin-top: 24px;
  padding: 16px;
  background: #f8fafc;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
}
.test-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #475569;
  margin: 0 0 8px 0;
}
.test-account {
  font-size: 0.8rem;
  color: #64748b;
  margin: 4px 0;
  font-family: monospace;
}

.register-link {
  margin-top: 16px;
  text-align: center;
  padding: 16px;
  background: #f8fafc;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
}

.register-link p {
  margin: 0;
  font-size: 0.9rem;
  color: #64748b;
}

.link-text {
  color: #4666e5;
  text-decoration: none;
  font-weight: 500;
}

.link-text:hover {
  text-decoration: underline;
}

@media (max-width: 600px) {
  .login-card {
    padding: 24px 8px 20px 8px;
    min-width: 0;
    max-width: 98vw;
  }
  .login-title {
    font-size: 1.3rem;
  }
}
</style>
