import { Component, inject, signal } from "@angular/core";
import { FormBuilder, ReactiveFormsModule, Validators } from "@angular/forms";
import { Router, RouterLink } from "@angular/router";
import { MATERIAL } from "../shared/material";
import { ApiService } from "../core/api.service";
@Component({
  standalone: true,
  imports: [ReactiveFormsModule, RouterLink, ...MATERIAL],
  template: `<main class="login">
    <mat-card
      ><mat-card-content
        ><div class="logo">A</div>
        <h1>Willkommen zurück</h1>
        <p class="muted">Ausbildungsstunden übersichtlich dokumentieren.</p>
        <form [formGroup]="form" (ngSubmit)="submit()">
          <mat-form-field appearance="outline" class="full"
            ><mat-label>E-Mail</mat-label
            ><input
              matInput
              type="email"
              formControlName="email"
              autocomplete="email"
            /><mat-icon matSuffix>mail</mat-icon><mat-hint></mat-hint></mat-form-field
          ><mat-form-field appearance="outline" class="full"
            ><mat-label>Passwort</mat-label
            ><input
              matInput
              type="password"
              formControlName="password"
              autocomplete="current-password"
            /><mat-icon matSuffix>lock</mat-icon><mat-hint></mat-hint></mat-form-field
          >
          @if (error()) {
            <p class="error">{{ error() }}</p>
          }
          <button
            mat-flat-button
            class="full"
            [disabled]="form.invalid || loading()"
          >
            @if (loading()) {
              <mat-spinner diameter="20" />
            } @else {
              Anmelden
            }
          </button>
          <div class="auth-links">
            <a routerLink="/forgot-password">Passwort vergessen?</a>
            <a routerLink="/register">Konto registrieren</a>
          </div>
          <div class="legal"><a routerLink="/resend-confirmation">Bestätigungslink erneut senden</a></div>
          <div class="legal"><a routerLink="/impressum">Impressum</a></div>
        </form></mat-card-content
      ></mat-card
    >
  </main>`,
  styles: [
    `
      .login {
        min-height: 100%;
        display: grid;
        place-items: center;
        padding: 20px;
        background:
          radial-gradient(circle at top left, #d9e9ff, transparent 45%), #f5f7fb;
      }
      .login mat-card {
        width: min(430px, 100%);
        padding: 24px;
        border-radius: 24px !important;
      }
      .logo {
        width: 54px;
        height: 54px;
        border-radius: 16px;
        display: grid;
        place-items: center;
        background: #155bd7;
        color: #fff;
        font-size: 25px;
        font-weight: 800;
      }
      h1 {
        margin: 22px 0 6px;
      }
      .full {
        margin-top: 10px;
      }
      .error {
        color: #b3261e;
      }
      button.full {
        height: 48px;
      }
      .auth-links {
        display: flex;
        justify-content: space-between;
        gap: 16px;
        margin-top: 20px;
      }
      .auth-links a {
        color: #155bd7;
        text-decoration: none;
        font-weight: 500;
      }
      .legal {
        text-align: center;
        margin-top: 18px;
      }
      .legal a {
        color: #687287;
        text-decoration: none;
        font-size: 13px;
      }
    `,
  ],
})
export class LoginComponent {
  private readonly fb = inject(FormBuilder);
  readonly loading = signal(false);
  readonly error = signal("");
  readonly form = this.fb.nonNullable.group({
    email: ["", [Validators.required, Validators.email]],
    password: ["", Validators.required],
  });
  constructor(
    private api: ApiService,
    private router: Router,
  ) {}
  submit() {
    if (this.form.invalid) return;
    this.loading.set(true);
    this.error.set("");
    this.api
      .login(this.form.value.email!, this.form.value.password!)
      .subscribe({
        next: () => this.router.navigate(["/dashboard"]),
        error: (e) => {
          this.loading.set(false);
          this.error.set(e.error?.error || "Anmeldung fehlgeschlagen");
        },
      });
  }
}