import {
  DeesElement,
  customElement,
  html,
  css,
  cssManager,
  property,
  type TemplateResult,
} from '@design.estate/dees-element';

declare global {
  interface HTMLElementTagNameMap {
    'sz-settings-view': SzSettingsView;
  }
}

export interface ISettings {
  darkMode: boolean;
  cloudflareToken: string;
  cloudflareZoneId: string;
  autoRenewCerts: boolean;
  renewalThreshold: number;
  acmeEmail: string;
  httpPort: number;
  httpsPort: number;
  forceHttps: boolean;
}

@customElement('sz-settings-view')
export class SzSettingsView extends DeesElement {
  public static demo = () => html`
    <div style="padding: 24px; max-width: 800px;">
      <sz-settings-view
        .settings=${{
          darkMode: true,
          cloudflareToken: '',
          cloudflareZoneId: '',
          autoRenewCerts: true,
          renewalThreshold: 30,
          acmeEmail: 'certs@example.com',
          httpPort: 80,
          httpsPort: 443,
          forceHttps: true,
        }}
        currentUser="admin"
      ></sz-settings-view>
    </div>
  `;

  public static demoGroups = ['Auth & Settings'];

  @property({ type: Object })
  public accessor settings: ISettings = {
    darkMode: false,
    cloudflareToken: '',
    cloudflareZoneId: '',
    autoRenewCerts: true,
    renewalThreshold: 30,
    acmeEmail: '',
    httpPort: 80,
    httpsPort: 443,
    forceHttps: true,
  };

  @property({ type: String })
  public accessor currentUser: string = '';

  public static styles = [
    cssManager.defaultStyles,
    css`
      :host {
        display: block;
      }

      dees-tile {
        display: block;
        margin-bottom: 24px;
      }

      .section-header {
        height: 36px;
        display: flex;
        align-items: center;
        padding: 0 16px;
        width: 100%;
        box-sizing: border-box;
      }

      .section-heading {
        flex: 1;
        display: flex;
        align-items: baseline;
        gap: 8px;
        min-width: 0;
      }

      .section-title {
        font-weight: 500;
        font-size: 13px;
        letter-spacing: -0.01em;
        color: var(--dees-color-text-secondary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .section-subtitle {
        font-size: 12px;
        color: var(--dees-color-text-muted);
        letter-spacing: -0.01em;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .section-content {
        padding: 20px;
      }

      .section-footer {
        display: flex;
        flex-direction: row;
        justify-content: flex-end;
        align-items: center;
        gap: 0;
        height: 36px;
        width: 100%;
        box-sizing: border-box;
      }

      .tile-button {
        padding: 0 16px;
        height: 100%;
        text-align: center;
        font-size: 12px;
        font-weight: 500;
        cursor: pointer;
        user-select: none;
        transition: all 0.15s ease;
        background: transparent;
        border: none;
        border-left: 1px solid var(--dees-color-border-subtle);
        color: var(--dees-color-text-muted);
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 6px;
      }

      .tile-button:first-child {
        border-left: none;
      }

      .tile-button:hover {
        background: var(--dees-color-hover);
        color: var(--dees-color-text-primary);
      }

      .tile-button.primary {
        color: ${cssManager.bdTheme('hsl(217.2 91.2% 59.8%)', 'hsl(213.1 93.9% 67.8%)')};
        font-weight: 600;
      }

      .tile-button.primary:hover {
        background: ${cssManager.bdTheme('hsl(217.2 91.2% 59.8% / 0.08)', 'hsl(213.1 93.9% 67.8% / 0.08)')};
        color: ${cssManager.bdTheme('hsl(217.2 91.2% 50%)', 'hsl(213.1 93.9% 75%)')};
      }

      .form-group {
        margin-bottom: 16px;
      }

      .form-group:last-child {
        margin-bottom: 0;
      }

      .form-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 0;
        border-bottom: 1px solid ${cssManager.bdTheme('#f4f4f5', '#27272a')};
      }

      .form-row:last-child {
        border-bottom: none;
      }

      .form-label-group {
        display: flex;
        flex-direction: column;
        gap: 2px;
      }

      .form-label {
        font-size: 14px;
        font-weight: 500;
        color: ${cssManager.bdTheme('#18181b', '#fafafa')};
      }

      .form-hint {
        font-size: 12px;
        color: ${cssManager.bdTheme('#71717a', '#a1a1aa')};
      }

      .input-group {
        display: flex;
        flex-direction: column;
        gap: 8px;
      }

      .input-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      input[type="text"],
      input[type="password"],
      input[type="email"],
      input[type="number"] {
        width: 100%;
        padding: 8px 12px;
        background: ${cssManager.bdTheme('#ffffff', '#09090b')};
        border: 1px solid ${cssManager.bdTheme('#e4e4e7', '#27272a')};
        border-radius: 6px;
        font-size: 14px;
        color: ${cssManager.bdTheme('#18181b', '#fafafa')};
        outline: none;
        transition: border-color 200ms ease;
        box-sizing: border-box;
      }

      input:focus {
        border-color: ${cssManager.bdTheme('#3b82f6', '#60a5fa')};
      }

      input::placeholder {
        color: ${cssManager.bdTheme('#a1a1aa', '#52525b')};
      }

      .toggle-switch {
        position: relative;
        width: 44px;
        height: 24px;
        background: ${cssManager.bdTheme('#e4e4e7', '#27272a')};
        border-radius: 9999px;
        cursor: pointer;
        transition: background 200ms ease;
      }

      .toggle-switch.active {
        background: ${cssManager.bdTheme('#2563eb', '#3b82f6')};
      }

      .toggle-switch::after {
        content: '';
        position: absolute;
        top: 2px;
        left: 2px;
        width: 20px;
        height: 20px;
        background: white;
        border-radius: 50%;
        transition: transform 200ms ease;
      }

      .toggle-switch.active::after {
        transform: translateX(20px);
      }

      .password-section {
        margin-top: 16px;
        padding-top: 16px;
        border-top: 1px solid ${cssManager.bdTheme('#f4f4f5', '#27272a')};
      }

      .password-title {
        font-size: 14px;
        font-weight: 600;
        color: ${cssManager.bdTheme('#18181b', '#fafafa')};
        margin-bottom: 12px;
      }

      .password-fields {
        display: flex;
        flex-direction: column;
        gap: 12px;
      }

      .field-label {
        font-size: 13px;
        color: ${cssManager.bdTheme('#71717a', '#a1a1aa')};
        margin-bottom: 4px;
      }

    `,
  ];

  public render(): TemplateResult {
    return html`
      <dees-tile>
        <div slot="header" class="section-header">
          <div class="section-heading">
            <span class="section-title">Appearance</span>
            <span class="section-subtitle">Customize the look and feel</span>
          </div>
        </div>
        <div class="section-content">
          <div class="form-row">
            <div class="form-label-group">
              <span class="form-label">Dark Mode</span>
              <span class="form-hint">Toggle dark mode on or off</span>
            </div>
            <div class="toggle-switch ${this.settings.darkMode ? 'active' : ''}" @click=${() => this.toggleDarkMode()}></div>
          </div>
        </div>
      </dees-tile>

      <dees-tile>
        <div slot="header" class="section-header">
          <div class="section-heading">
            <span class="section-title">Cloudflare Integration</span>
            <span class="section-subtitle">Configure Cloudflare API for DNS management</span>
          </div>
        </div>
        <div class="section-content">
          <div class="input-group">
            <div class="form-group">
              <div class="field-label">API Token</div>
              <input type="password" placeholder="Enter Cloudflare API token" .value=${this.settings.cloudflareToken} @input=${(e: Event) => this.updateSetting('cloudflareToken', (e.target as HTMLInputElement).value)}>
            </div>
            <div class="form-group">
              <div class="field-label">Zone ID (Optional)</div>
              <input type="text" placeholder="Default zone ID" .value=${this.settings.cloudflareZoneId} @input=${(e: Event) => this.updateSetting('cloudflareZoneId', (e.target as HTMLInputElement).value)}>
            </div>
            <div class="form-hint">Get your API token from the Cloudflare dashboard with DNS edit permissions.</div>
          </div>
        </div>
      </dees-tile>

      <dees-tile>
        <div slot="header" class="section-header">
          <div class="section-heading">
            <span class="section-title">SSL/TLS Settings</span>
            <span class="section-subtitle">Configure certificate management</span>
          </div>
        </div>
        <div class="section-content">
          <div class="form-row">
            <div class="form-label-group">
              <span class="form-label">Auto-Renew Certificates</span>
              <span class="form-hint">Automatically renew certificates before expiry</span>
            </div>
            <div class="toggle-switch ${this.settings.autoRenewCerts ? 'active' : ''}" @click=${() => this.toggleSetting('autoRenewCerts')}></div>
          </div>
          <div class="form-group" style="margin-top: 16px;">
            <div class="field-label">Renewal Threshold (days)</div>
            <input type="number" .value=${String(this.settings.renewalThreshold)} @input=${(e: Event) => this.updateSetting('renewalThreshold', parseInt((e.target as HTMLInputElement).value))}>
            <div class="form-hint">Renew certificates when they have fewer than this many days remaining.</div>
          </div>
          <div class="form-group">
            <div class="field-label">ACME Email</div>
            <input type="email" placeholder="admin@example.com" .value=${this.settings.acmeEmail} @input=${(e: Event) => this.updateSetting('acmeEmail', (e.target as HTMLInputElement).value)}>
            <div class="form-hint">Email address for Let's Encrypt notifications.</div>
          </div>
        </div>
      </dees-tile>

      <dees-tile>
        <div slot="header" class="section-header">
          <div class="section-heading">
            <span class="section-title">Network Settings</span>
            <span class="section-subtitle">Configure network and proxy settings</span>
          </div>
        </div>
        <div class="section-content">
          <div class="input-row">
            <div class="form-group">
              <div class="field-label">HTTP Port</div>
              <input type="number" .value=${String(this.settings.httpPort)} @input=${(e: Event) => this.updateSetting('httpPort', parseInt((e.target as HTMLInputElement).value))}>
            </div>
            <div class="form-group">
              <div class="field-label">HTTPS Port</div>
              <input type="number" .value=${String(this.settings.httpsPort)} @input=${(e: Event) => this.updateSetting('httpsPort', parseInt((e.target as HTMLInputElement).value))}>
            </div>
          </div>
          <div class="form-row">
            <div class="form-label-group">
              <span class="form-label">Force HTTPS</span>
              <span class="form-hint">Redirect all HTTP traffic to HTTPS</span>
            </div>
            <div class="toggle-switch ${this.settings.forceHttps ? 'active' : ''}" @click=${() => this.toggleSetting('forceHttps')}></div>
          </div>
        </div>
      </dees-tile>

      <dees-tile>
        <div slot="header" class="section-header">
          <div class="section-heading">
            <span class="section-title">Account</span>
            <span class="section-subtitle">Manage your account settings</span>
          </div>
        </div>
        <div class="section-content">
          <div class="form-group">
            <div class="field-label">Current User</div>
            <div style="font-size: 14px; color: ${cssManager.bdTheme('#18181b', '#fafafa')};">${this.currentUser || 'Unknown'}</div>
          </div>
          <div class="password-section">
            <div class="password-title">Change Password</div>
            <div class="password-fields">
              <div>
                <div class="field-label">Current Password</div>
                <input type="password" id="currentPassword">
              </div>
              <div>
                <div class="field-label">New Password</div>
                <input type="password" id="newPassword">
              </div>
              <div>
                <div class="field-label">Confirm Password</div>
                <input type="password" id="confirmPassword">
              </div>
            </div>
          </div>
        </div>
        <div slot="footer" class="section-footer">
          <button class="tile-button" @click=${() => this.handleChangePassword()}>Update Password</button>
        </div>
      </dees-tile>

      <dees-tile>
        <div class="section-content" style="padding: 12px 16px; text-align: center; color: var(--dees-color-text-muted); font-size: 12px;">
          Save your changes or reset to defaults.
        </div>
        <div slot="footer" class="section-footer">
          <button class="tile-button" @click=${() => this.handleReset()}>Reset</button>
          <button class="tile-button primary" @click=${() => this.handleSave()}>Save Settings</button>
        </div>
      </dees-tile>
    `;
  }

  private toggleDarkMode() {
    this.settings = { ...this.settings, darkMode: !this.settings.darkMode };
    this.dispatchEvent(new CustomEvent('setting-change', { detail: { key: 'darkMode', value: this.settings.darkMode }, bubbles: true, composed: true }));
  }

  private toggleSetting(key: keyof ISettings) {
    (this.settings as any)[key] = !(this.settings as any)[key];
    this.settings = { ...this.settings };
  }

  private updateSetting(key: keyof ISettings, value: any) {
    (this.settings as any)[key] = value;
    this.settings = { ...this.settings };
  }

  private handleChangePassword() {
    const currentPassword = (this.shadowRoot?.getElementById('currentPassword') as HTMLInputElement)?.value;
    const newPassword = (this.shadowRoot?.getElementById('newPassword') as HTMLInputElement)?.value;
    const confirmPassword = (this.shadowRoot?.getElementById('confirmPassword') as HTMLInputElement)?.value;

    this.dispatchEvent(new CustomEvent('change-password', {
      detail: { currentPassword, newPassword, confirmPassword },
      bubbles: true,
      composed: true
    }));
  }

  private handleReset() {
    this.dispatchEvent(new CustomEvent('reset', { bubbles: true, composed: true }));
  }

  private handleSave() {
    this.dispatchEvent(new CustomEvent('save', { detail: this.settings, bubbles: true, composed: true }));
  }
}