{% extends "base.html" %}
{% block title %}Profile Settings – DocuElevate{% endblock %}

{% block content %}
<div
  class="container mx-auto px-4 py-8 max-w-3xl"
  x-data="profileSettings()"
  x-init="init()"
>

  <!-- ── Header ─────────────────────────────────────────────────────────── -->
  <header class="mb-8">
    <h1 class="text-2xl font-bold text-gray-900 dark:text-white flex items-center gap-2">
      <i class="fas fa-user-circle text-blue-500" aria-hidden="true"></i>
      Profile Settings
    </h1>
    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
      Manage your display name, avatar, language, and theme preferences.
    </p>
  </header>

  <!-- ── Status banner ──────────────────────────────────────────────────── -->
  <div
    role="alert"
    aria-live="polite"
    x-show="banner.visible"
    x-transition
    :class="banner.error
      ? 'bg-red-50 dark:bg-red-900/30 border border-red-300 dark:border-red-700 text-red-800 dark:text-red-200'
      : 'bg-green-50 dark:bg-green-900/30 border border-green-300 dark:border-green-700 text-green-800 dark:text-green-200'"
    class="rounded-lg p-4 mb-6 flex items-start gap-3 text-sm"
  >
    <i :class="banner.error ? 'fas fa-exclamation-circle' : 'fas fa-check-circle'" aria-hidden="true"></i>
    <span x-text="banner.message"></span>
    <button
      type="button"
      @click="banner.visible = false"
      class="ml-auto"
      aria-label="Dismiss"
      style="min-height:44px; min-width:44px;"
    >
      <i class="fas fa-times" aria-hidden="true"></i>
    </button>
  </div>

  <!-- ── Avatar card ────────────────────────────────────────────────────── -->
  <section
    class="bg-white dark:bg-gray-800 shadow rounded-lg p-6 mb-6"
    aria-labelledby="avatar-heading"
  >
    <h2 id="avatar-heading" class="text-base font-semibold text-gray-900 dark:text-white mb-4">
      <i class="fas fa-camera text-gray-400 mr-2" aria-hidden="true"></i>Profile Picture
    </h2>

    <div class="flex flex-col sm:flex-row items-center gap-6">
      <!-- Current avatar -->
      <div class="relative flex-shrink-0">
        <img
          :src="avatarUrl"
          alt="Your profile picture"
          class="w-24 h-24 rounded-full object-cover border-2 border-gray-200 dark:border-gray-600"
        />
        <template x-if="hasCustomAvatar">
          <button
            type="button"
            @click="removeAvatar()"
            :disabled="saving"
            class="absolute -top-1 -right-1 bg-red-500 hover:bg-red-600 text-white rounded-full w-6 h-6 flex items-center justify-center shadow focus:outline-none focus:ring-2 focus:ring-red-400"
            aria-label="Remove custom avatar"
            title="Remove custom avatar"
          >
            <i class="fas fa-times text-xs" aria-hidden="true"></i>
          </button>
        </template>
      </div>

      <!-- Upload controls -->
      <div class="flex-1 space-y-3">
        <p class="text-sm text-gray-600 dark:text-gray-400">
          Upload a JPEG, PNG, GIF, or WebP image up to 2 MB.
          If no custom picture is set, your <a href="https://gravatar.com" class="underline" target="_blank" rel="noopener noreferrer" aria-label="Gravatar (opens in new tab)">Gravatar</a> is shown.
        </p>
        <label
          for="avatar-input"
          class="inline-flex items-center gap-2 px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white text-sm font-medium rounded-md cursor-pointer focus-within:ring-2 focus-within:ring-blue-500 transition-colors"
          style="min-height:44px;"
        >
          <i class="fas fa-upload" aria-hidden="true"></i>
          <span>Choose image…</span>
          <input
            id="avatar-input"
            type="file"
            accept="image/jpeg,image/png,image/gif,image/webp"
            class="sr-only"
            @change="uploadAvatar($event)"
            :disabled="saving"
          />
        </label>
        <p x-show="uploadProgress" class="text-xs text-gray-500 dark:text-gray-400" x-text="uploadProgress" aria-live="polite"></p>
      </div>
    </div>
  </section>

  <!-- ── General info card ──────────────────────────────────────────────── -->
  <section
    class="bg-white dark:bg-gray-800 shadow rounded-lg p-6 mb-6"
    aria-labelledby="general-heading"
  >
    <h2 id="general-heading" class="text-base font-semibold text-gray-900 dark:text-white mb-4">
      <i class="fas fa-id-card text-gray-400 mr-2" aria-hidden="true"></i>General Information
    </h2>

    <div class="space-y-4">
      <!-- Display name -->
      <div>
        <label for="display-name" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
          Display Name
        </label>
        <input
          id="display-name"
          type="text"
          x-model="form.display_name"
          maxlength="255"
          placeholder="Your name as shown in the UI"
          class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                 focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
          style="min-height:44px;"
          aria-describedby="display-name-hint"
        />
        <p id="display-name-hint" class="mt-1 text-xs text-gray-500 dark:text-gray-400">
          Leave blank to use your account username or email.
        </p>
      </div>

      <!-- Contact email -->
      <div>
        <label for="contact-email" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
          Contact / Notification E-mail
        </label>
        <input
          id="contact-email"
          type="email"
          x-model="form.contact_email"
          maxlength="255"
          placeholder="you@example.com"
          class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                 focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
          style="min-height:44px;"
          aria-describedby="contact-email-hint"
        />
        <p id="contact-email-hint" class="mt-1 text-xs text-gray-500 dark:text-gray-400">
          Used for system notifications. This does not change your login e-mail.
        </p>
      </div>
    </div>
  </section>

  <!-- ── Preferences card ───────────────────────────────────────────────── -->
  <section
    class="bg-white dark:bg-gray-800 shadow rounded-lg p-6 mb-6"
    aria-labelledby="prefs-heading"
  >
    <h2 id="prefs-heading" class="text-base font-semibold text-gray-900 dark:text-white mb-4">
      <i class="fas fa-sliders-h text-gray-400 mr-2" aria-hidden="true"></i>Preferences
    </h2>

    <div class="space-y-5">
      <!-- Language -->
      <div>
        <label for="lang-select" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
          <i class="fas fa-globe text-gray-400 mr-1" aria-hidden="true"></i>UI Language
        </label>
        <select
          id="lang-select"
          x-model="form.preferred_language"
          class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                 focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
          style="min-height:44px;"
        >
          <option value="">Auto-detect (from browser)</option>
          {% for lang in supported_languages %}
          <option value="{{ lang.code }}">{{ lang.flag }} {{ lang.native }} ({{ lang.name }})</option>
          {% endfor %}
        </select>
        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
          Choose your preferred interface language. "Auto-detect" follows your browser settings.
        </p>
      </div>

      <!-- Theme -->
      <fieldset>
        <legend class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2">
          <i class="fas fa-palette text-gray-400 mr-1" aria-hidden="true"></i>Colour Scheme
        </legend>
        <div class="flex flex-wrap gap-3">
          <label
            class="relative flex items-center gap-2 cursor-pointer rounded-lg border px-4 py-3 text-sm transition-colors
                   focus-within:ring-2 focus-within:ring-blue-500"
            :class="form.preferred_theme === 'light'
              ? 'border-blue-500 bg-blue-50 dark:bg-blue-900/20 text-blue-700 dark:text-blue-300'
              : 'border-gray-200 dark:border-gray-600 text-gray-700 dark:text-gray-300 hover:border-gray-300'"
            style="min-height:44px; min-width:44px;"
          >
            <input type="radio" name="theme" value="light" x-model="form.preferred_theme" class="sr-only" />
            <i class="fas fa-sun" aria-hidden="true"></i> Light
          </label>
          <label
            class="relative flex items-center gap-2 cursor-pointer rounded-lg border px-4 py-3 text-sm transition-colors
                   focus-within:ring-2 focus-within:ring-blue-500"
            :class="form.preferred_theme === 'dark'
              ? 'border-blue-500 bg-blue-50 dark:bg-blue-900/20 text-blue-700 dark:text-blue-300'
              : 'border-gray-200 dark:border-gray-600 text-gray-700 dark:text-gray-300 hover:border-gray-300'"
            style="min-height:44px; min-width:44px;"
          >
            <input type="radio" name="theme" value="dark" x-model="form.preferred_theme" class="sr-only" />
            <i class="fas fa-moon" aria-hidden="true"></i> Dark
          </label>
          <label
            class="relative flex items-center gap-2 cursor-pointer rounded-lg border px-4 py-3 text-sm transition-colors
                   focus-within:ring-2 focus-within:ring-blue-500"
            :class="!form.preferred_theme || form.preferred_theme === 'system'
              ? 'border-blue-500 bg-blue-50 dark:bg-blue-900/20 text-blue-700 dark:text-blue-300'
              : 'border-gray-200 dark:border-gray-600 text-gray-700 dark:text-gray-300 hover:border-gray-300'"
            style="min-height:44px; min-width:44px;"
          >
            <input type="radio" name="theme" value="system" x-model="form.preferred_theme" class="sr-only" />
            <i class="fas fa-desktop" aria-hidden="true"></i> System Default
          </label>
        </div>
        <p class="mt-2 text-xs text-gray-500 dark:text-gray-400">
          "System Default" follows your device's dark-mode setting.
        </p>
      </fieldset>
    </div>
  </section>

  <!-- Save button -->
  <div class="flex justify-end">
    <button
      type="button"
      @click="saveProfile()"
      :disabled="saving"
      class="inline-flex items-center gap-2 px-6 py-2.5 bg-blue-600 hover:bg-blue-700 text-white text-sm font-medium
             rounded-md shadow focus:outline-none focus:ring-2 focus:ring-blue-500 disabled:opacity-50 transition-colors"
      style="min-height:44px; min-width:44px;"
    >
      <i class="fas fa-save" aria-hidden="true"></i>
      <span x-text="saving ? 'Saving…' : 'Save Changes'"></span>
    </button>
  </div>

  <!-- ── Password change card (local accounts only) ─────────────────────── -->
  <template x-if="isLocalUser">
    <section
      class="bg-white dark:bg-gray-800 shadow rounded-lg p-6 mt-6"
      aria-labelledby="password-heading"
    >
      <h2 id="password-heading" class="text-base font-semibold text-gray-900 dark:text-white mb-4">
        <i class="fas fa-lock text-gray-400 mr-2" aria-hidden="true"></i>Change Password
      </h2>

      <div class="space-y-4 max-w-md">
        <div>
          <label for="current-password" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
            Current Password
          </label>
          <input
            id="current-password"
            type="password"
            x-model="pwForm.current_password"
            autocomplete="current-password"
            class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                   focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
            style="min-height:44px;"
          />
        </div>
        <div>
          <label for="new-password" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
            New Password
          </label>
          <input
            id="new-password"
            type="password"
            x-model="pwForm.new_password"
            autocomplete="new-password"
            class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                   focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
            style="min-height:44px;"
            aria-describedby="new-pw-hint"
          />
          <p id="new-pw-hint" class="mt-1 text-xs text-gray-500 dark:text-gray-400">Minimum 8 characters.</p>
        </div>
        <div>
          <label for="confirm-password" class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
            Confirm New Password
          </label>
          <input
            id="confirm-password"
            type="password"
            x-model="pwForm.new_password_confirm"
            autocomplete="new-password"
            class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm
                   focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
            style="min-height:44px;"
          />
        </div>
        <div class="flex justify-end">
          <button
            type="button"
            @click="changePassword()"
            :disabled="pwSaving"
            class="inline-flex items-center gap-2 px-5 py-2 bg-gray-700 hover:bg-gray-800 text-white text-sm font-medium
                   rounded-md shadow focus:outline-none focus:ring-2 focus:ring-gray-500 disabled:opacity-50 transition-colors"
            style="min-height:44px;"
          >
            <i class="fas fa-key" aria-hidden="true"></i>
            <span x-text="pwSaving ? 'Updating…' : 'Update Password'"></span>
          </button>
        </div>
      </div>
    </section>
  </template>

</div><!-- /container -->

<script>
function profileSettings() {
  return {
    // ── State ──────────────────────────────────────────────────────────────
    avatarUrl: '/static/images/avatar-placeholder.svg',
    hasCustomAvatar: false,
    isLocalUser: false,
    saving: false,
    pwSaving: false,
    uploadProgress: '',
    banner: { visible: false, error: false, message: '' },

    form: {
      display_name: '',
      contact_email: '',
      preferred_language: '',
      preferred_theme: 'system',
    },

    pwForm: {
      current_password: '',
      new_password: '',
      new_password_confirm: '',
    },

    // ── Init ───────────────────────────────────────────────────────────────
    async init() {
      try {
        const res = await fetch('/api/profile');
        if (!res.ok) return;
        const data = await res.json();
        this.avatarUrl        = data.avatar_url  || this.avatarUrl;
        this.hasCustomAvatar  = !!(data.avatar_url && data.avatar_url.startsWith('data:'));
        this.isLocalUser      = data.is_local_user || false;
        this.form.display_name     = data.display_name     || '';
        this.form.contact_email    = data.contact_email    || '';
        this.form.preferred_language = data.preferred_language || '';
        this.form.preferred_theme    = data.preferred_theme  || 'system';
      } catch (_e) {
        // Silently ignore — user might not be logged in (rare for this page)
      }
    },

    // ── CSRF helper ────────────────────────────────────────────────────────
    _getCSRFToken() {
      return document.cookie
        .split('; ')
        .find(row => row.startsWith('csrf_token='))
        ?.split('=')[1];
    },

    // ── Save general settings ──────────────────────────────────────────────
    async saveProfile() {
      this.saving = true;
      this._hideBanner();
      try {
        const csrfToken = this._getCSRFToken();

        const res = await fetch('/api/profile', {
          method: 'PATCH',
          headers: {
            'Content-Type': 'application/json',
            ...(csrfToken ? { 'X-CSRF-Token': csrfToken } : {}),
          },
          body: JSON.stringify(this.form),
        });
        const data = await res.json();
        if (!res.ok) {
          this._showBanner(data.detail || 'Failed to save settings.', true);
          return;
        }
        this._showBanner('Profile settings saved successfully.', false);
        // Update display name across the nav (refresh the avatar/name)
        if (data.avatar_url) {
          this.avatarUrl = data.avatar_url;
          this.hasCustomAvatar = data.avatar_url.startsWith('data:');
        }
      } catch (_e) {
        this._showBanner('Network error — please try again.', true);
      } finally {
        this.saving = false;
      }
    },

    // ── Avatar upload ──────────────────────────────────────────────────────
    async uploadAvatar(event) {
      const file = event.target.files[0];
      if (!file) return;
      if (file.size > 2 * 1024 * 1024) {
        this._showBanner('Image is too large. Maximum size is 2 MB.', true);
        return;
      }
      this.uploadProgress = 'Uploading…';
      this._hideBanner();
      const formData = new FormData();
      formData.append('file', file);

      const csrfToken = this._getCSRFToken();

      try {
        const res = await fetch('/api/profile/avatar', {
          method: 'POST',
          headers: csrfToken ? { 'X-CSRF-Token': csrfToken } : {},
          body: formData,
        });
        const data = await res.json();
        if (!res.ok) {
          this._showBanner(data.detail || 'Upload failed.', true);
          return;
        }
        this.avatarUrl = data.avatar_url;
        this.hasCustomAvatar = true;
        this._showBanner('Profile picture updated.', false);
      } catch (_e) {
        this._showBanner('Network error — please try again.', true);
      } finally {
        this.uploadProgress = '';
        // Reset file input so the same file can be re-selected
        event.target.value = '';
      }
    },

    // ── Remove avatar ──────────────────────────────────────────────────────
    async removeAvatar() {
      this._hideBanner();
      const csrfToken = this._getCSRFToken();

      try {
        const res = await fetch('/api/profile/avatar', {
          method: 'DELETE',
          headers: csrfToken ? { 'X-CSRF-Token': csrfToken } : {},
        });
        const data = await res.json();
        if (!res.ok) {
          this._showBanner(data.detail || 'Failed to remove avatar.', true);
          return;
        }
        this.avatarUrl = data.avatar_url;
        this.hasCustomAvatar = false;
        this._showBanner('Custom avatar removed. Gravatar is now shown.', false);
      } catch (_e) {
        this._showBanner('Network error — please try again.', true);
      }
    },

    // ── Change password ────────────────────────────────────────────────────
    async changePassword() {
      this.pwSaving = true;
      this._hideBanner();
      const csrfToken = this._getCSRFToken();

      try {
        const res = await fetch('/api/profile/change-password', {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            ...(csrfToken ? { 'X-CSRF-Token': csrfToken } : {}),
          },
          body: JSON.stringify(this.pwForm),
        });
        const data = await res.json();
        if (!res.ok) {
          this._showBanner(data.detail || 'Failed to change password.', true);
          return;
        }
        this._showBanner('Password changed successfully.', false);
        this.pwForm = { current_password: '', new_password: '', new_password_confirm: '' };
      } catch (_e) {
        this._showBanner('Network error — please try again.', true);
      } finally {
        this.pwSaving = false;
      }
    },

    // ── Banner helpers ─────────────────────────────────────────────────────
    _showBanner(message, error) {
      this.banner = { visible: true, error, message };
      if (!error) {
        setTimeout(() => { this.banner.visible = false; }, 4000);
      }
    },
    _hideBanner() {
      this.banner.visible = false;
    },
  };
}
</script>
{% endblock %}