import {
  DeesElement,
  property,
  html,
  customElement,
  type TemplateResult,
  cssManager,
  css,
  unsafeCSS,
} from '@design.estate/dees-element';
import * as domtools from '@design.estate/dees-domtools';
import type { IServiceStatus } from '../interfaces/index.js';
import { fonts, colors, shadows, borderRadius, spacing, commonStyles, getStatusColor } from '../styles/shared.styles.js';

import './internal/uplinternal-miniheading.js';
import { demoFunc } from './upl-statuspage-assetsselector.demo.js';

declare global {
  interface HTMLElementTagNameMap {
    'upl-statuspage-assetsselector': UplStatuspageAssetsselector;
  }
}

@customElement('upl-statuspage-assetsselector')
export class UplStatuspageAssetsselector extends DeesElement {
  public static demo = demoFunc;

  @property({ type: Array })
  public services: IServiceStatus[] = [];

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

  @property({ type: String })
  public filterCategory: string = 'all';

  @property({ type: Boolean })
  public showOnlySelected: boolean = false;

  @property({ type: Boolean })
  public loading: boolean = false;
  
  @property({ type: Boolean })
  public expanded: boolean = false;

  constructor() {
    super();
  }

  public static styles = [
    cssManager.defaultStyles,
    commonStyles,
    css`
      :host {
          display: block;
          background: transparent;
          font-family: ${unsafeCSS(fonts.base)};
          color: ${colors.text.primary};
        }

        .container {
          max-width: 1200px;
          margin: 0 auto;
          padding: 0 ${unsafeCSS(spacing.lg)} ${unsafeCSS(spacing.lg)} ${unsafeCSS(spacing.lg)};
        }

        .controls {
          display: flex;
          gap: ${unsafeCSS(spacing.sm)};
          margin-bottom: ${unsafeCSS(spacing.md)};
          flex-wrap: wrap;
          align-items: center;
        }

        .search-input {
          flex: 1;
          min-width: 200px;
          padding: ${unsafeCSS(spacing.xs)} ${unsafeCSS(spacing.sm)};
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          border-radius: ${unsafeCSS(borderRadius.base)};
          background: ${cssManager.bdTheme('#ffffff', '#0a0a0a')};
          color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
          font-size: 13px;
          font-family: ${unsafeCSS(fonts.base)};
          transition: all 0.2s ease;
          height: 32px;
        }

        .search-input:focus {
          outline: none;
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
        }

        .search-input::placeholder {
          color: ${cssManager.bdTheme('#9ca3af', '#71717a')};
        }

        .filter-button {
          display: inline-flex;
          align-items: center;
          justify-content: center;
          padding: ${unsafeCSS(spacing.xs)} ${unsafeCSS(spacing.sm)};
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          border-radius: ${unsafeCSS(borderRadius.base)};
          background: transparent;
          color: ${cssManager.bdTheme('#6b7280', '#a1a1aa')};
          cursor: pointer;
          font-size: 13px;
          font-weight: 400;
          font-family: ${unsafeCSS(fonts.base)};
          transition: all 0.2s ease;
          height: 32px;
        }

        .filter-button:hover {
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
          color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
        }

        .filter-button.active {
          background: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
          color: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
        }

        .selected-services {
          display: flex;
          flex-wrap: wrap;
          gap: ${unsafeCSS(spacing.sm)};
          align-items: center;
        }
        
        .service-pill {
          display: inline-flex;
          align-items: center;
          gap: ${unsafeCSS(spacing.xs)};
          padding: ${unsafeCSS(spacing.xs)} ${unsafeCSS(spacing.md)};
          background: ${cssManager.bdTheme('#ffffff', '#0a0a0a')};
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          border-radius: ${unsafeCSS(borderRadius.full)};
          font-size: 13px;
          transition: all 0.2s ease;
        }
        
        .service-pill:hover {
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
        }
        
        .service-pill .status-dot {
          width: 6px;
          height: 6px;
          border-radius: 50%;
        }
        
        .manage-button {
          display: inline-flex;
          align-items: center;
          gap: ${unsafeCSS(spacing.xs)};
          padding: ${unsafeCSS(spacing.xs)} ${unsafeCSS(spacing.md)};
          background: transparent;
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          border-radius: ${unsafeCSS(borderRadius.base)};
          font-size: 13px;
          font-weight: 500;
          cursor: pointer;
          transition: all 0.2s ease;
          color: ${cssManager.bdTheme('#6b7280', '#a1a1aa')};
          font-family: ${unsafeCSS(fonts.base)};
        }
        
        .manage-button:hover {
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
          color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
        }
        
        .expandable-section {
          margin-top: ${unsafeCSS(spacing.lg)};
          overflow: hidden;
          transition: all 0.3s ease;
        }
        
        .expandable-content {
          padding: ${unsafeCSS(spacing.lg)};
          background: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          border-radius: ${unsafeCSS(borderRadius.base)};
        }
        
        .assets-grid {
          display: grid;
          grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
          gap: ${unsafeCSS(spacing.sm)};
          margin-top: ${unsafeCSS(spacing.md)};
        }

        .asset-card {
          display: flex;
          align-items: center;
          padding: ${unsafeCSS(spacing.sm)} ${unsafeCSS(spacing.md)};
          background: ${cssManager.bdTheme('#ffffff', '#0a0a0a')};
          border-radius: ${unsafeCSS(borderRadius.base)};
          cursor: pointer;
          transition: all 0.2s ease;
          border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
          gap: ${unsafeCSS(spacing.sm)};
        }

        .asset-card:hover {
          border-color: ${cssManager.bdTheme('#d1d5db', '#3f3f46')};
        }

        .asset-card.selected {
          border-color: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
          background: ${cssManager.bdTheme('#f9fafb', '#0f0f0f')};
        }

        .asset-checkbox {
          width: 16px;
          height: 16px;
          cursor: pointer;
          accent-color: ${colors.text.primary};
          flex-shrink: 0;
        }

        .asset-info {
          flex: 1;
          min-width: 0;
        }

        .asset-name {
          font-weight: 600;
          font-size: 14px;
          margin-bottom: ${unsafeCSS(spacing.xs)};
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }

        .asset-description {
          font-size: 13px;
          color: ${colors.text.secondary};
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }

        .asset-status {
          display: flex;
          align-items: center;
          gap: ${unsafeCSS(spacing.xs)};
          flex-shrink: 0;
        }

        .status-indicator {
          width: 8px;
          height: 8px;
          border-radius: ${unsafeCSS(borderRadius.full)};
        }

        .status-indicator.operational, .status-dot.operational { background: #22c55e; }
        .status-indicator.degraded, .status-dot.degraded { background: #fbbf24; }
        .status-indicator.partial_outage, .status-dot.partial_outage { background: #f87171; }
        .status-indicator.major_outage, .status-dot.major_outage { background: #ef4444; }
        .status-indicator.maintenance, .status-dot.maintenance { background: #60a5fa; }

        .status-text {
          font-size: 12px;
          text-transform: capitalize;
          color: ${colors.text.secondary};
        }

        .loading-message,
        .no-results {
          grid-column: 1 / -1;
          text-align: center;
          padding: ${unsafeCSS(spacing.xl)};
          color: ${cssManager.bdTheme('#9ca3af', '#71717a')};
          font-size: 13px;
        }

        .summary {
          text-align: right;
          font-size: 12px;
          margin-top: ${unsafeCSS(spacing.md)};
          color: ${cssManager.bdTheme('#9ca3af', '#71717a')};
        }
        
        .no-services {
          padding: ${unsafeCSS(spacing.xl)};
          text-align: center;
          color: ${cssManager.bdTheme('#9ca3af', '#71717a')};
          font-size: 13px;
        }

        @media (max-width: 640px) {
          .container {
            padding: 0 ${unsafeCSS(spacing.md)} ${unsafeCSS(spacing.md)} ${unsafeCSS(spacing.md)};
          }

          .controls {
            flex-direction: column;
            align-items: stretch;
          }

          .search-input {
            width: 100%;
          }

          .selected-services {
            flex-direction: column;
            align-items: stretch;
          }
          
          .service-pill {
            width: auto;
          }
          
          .expandable-content {
            padding: ${unsafeCSS(spacing.md)};
          }
          
          .assets-grid {
            grid-template-columns: 1fr;
          }

          .asset-card {
            padding: ${unsafeCSS(spacing.sm)};
          }
        }
    `,
  ]

  public render(): TemplateResult {
    const selectedServices = this.services.filter(s => s.selected);
    const selectedCount = selectedServices.length;
    const categories = this.getUniqueCategories();

    return html`
      <div class="container">
        <uplinternal-miniheading>Monitored Assets</uplinternal-miniheading>
        
        <div class="selected-services">
          ${selectedCount === 0 ? html`
            <span style="color: ${cssManager.bdTheme('#9ca3af', '#71717a')}; font-size: 13px;">
              No services selected
            </span>
          ` : selectedCount > 5 && !this.expanded ? html`
            ${selectedServices.slice(0, 4).map(service => html`
              <div class="service-pill">
                <span class="status-dot ${service.currentStatus}"></span>
                <span>${service.displayName}</span>
              </div>
            `)}
            <span style="color: ${cssManager.bdTheme('#6b7280', '#a1a1aa')}; font-size: 12px;">
              +${selectedCount - 4} more
            </span>
          ` : selectedServices.map(service => html`
            <div class="service-pill">
              <span class="status-dot ${service.currentStatus}"></span>
              <span>${service.displayName}</span>
            </div>
          `)}
          
          <button 
            class="manage-button"
            @click=${() => { this.expanded = !this.expanded; }}
          >
            ${this.expanded ? 'Close' : 'Manage Services'}
            <svg 
              width="10" 
              height="6" 
              viewBox="0 0 10 6" 
              fill="none" 
              xmlns="http://www.w3.org/2000/svg"
              style="transform: rotate(${this.expanded ? '180deg' : '0'}); transition: transform 0.2s;"
            >
              <path 
                d="M1 1L5 5L9 1" 
                stroke="currentColor" 
                stroke-width="1.5" 
                stroke-linecap="round" 
                stroke-linejoin="round"
              />
            </svg>
          </button>
        </div>
        
        ${this.expanded ? html`
          <div class="expandable-section">
            <div class="expandable-content">
              <div class="controls">
                <input
                  type="text"
                  class="search-input"
                  placeholder="Search services..."
                  .value=${this.filterText}
                  @input=${(e: Event) => {
                    this.filterText = (e.target as HTMLInputElement).value;
                  }}
                />
                
                <button
                  class="filter-button ${this.filterCategory === 'all' ? 'active' : ''}"
                  @click=${() => { this.filterCategory = 'all'; }}
                >
                  All
                </button>
                
                ${categories.map(category => html`
                  <button
                    class="filter-button ${this.filterCategory === category ? 'active' : ''}"
                    @click=${() => { this.filterCategory = category; }}
                  >
                    ${category}
                  </button>
                `)}
                
                <button
                  class="filter-button ${this.showOnlySelected ? 'active' : ''}"
                  @click=${() => { this.showOnlySelected = !this.showOnlySelected; }}
                >
                  ${this.showOnlySelected ? 'Show All' : 'Selected Only'}
                </button>
                
                <button
                  class="filter-button"
                  @click=${() => this.selectAll()}
                >
                  Select All
                </button>
                
                <button
                  class="filter-button"
                  @click=${() => this.selectNone()}
                >
                  Select None
                </button>
              </div>
              
              <div class="assets-grid">
                ${this.loading ? html`
                  <div class="loading-message">Loading services...</div>
                ` : this.renderServiceGrid()}
              </div>
              
              <div class="summary">
                ${selectedCount} of ${this.services.length} services selected
              </div>
            </div>
          </div>
        ` : ''}
      </div>
    `;
  }

  private getFilteredServices(): IServiceStatus[] {
    return this.services.filter(service => {
      // Apply text filter
      if (this.filterText && !service.displayName.toLowerCase().includes(this.filterText.toLowerCase()) &&
          (!service.description || !service.description.toLowerCase().includes(this.filterText.toLowerCase()))) {
        return false;
      }

      // Apply category filter
      if (this.filterCategory !== 'all' && service.category !== this.filterCategory) {
        return false;
      }

      // Apply selected filter
      if (this.showOnlySelected && !service.selected) {
        return false;
      }

      return true;
    });
  }

  private getUniqueCategories(): string[] {
    const categories = new Set<string>();
    this.services.forEach(service => {
      if (service.category) {
        categories.add(service.category);
      }
    });
    return Array.from(categories).sort();
  }

  private toggleService(serviceId: string) {
    const service = this.services.find(s => s.id === serviceId);
    if (service) {
      service.selected = !service.selected;
      this.requestUpdate();
      
      this.dispatchEvent(new CustomEvent('selectionChanged', {
        detail: {
          serviceId,
          selected: service.selected,
          selectedServices: this.services.filter(s => s.selected).map(s => s.id)
        },
        bubbles: true,
        composed: true
      }));
    }
  }

  private selectAll() {
    const filteredServices = this.getFilteredServices();
    filteredServices.forEach(service => {
      service.selected = true;
    });
    this.requestUpdate();
    this.emitSelectionUpdate();
  }

  private selectNone() {
    const filteredServices = this.getFilteredServices();
    filteredServices.forEach(service => {
      service.selected = false;
    });
    this.requestUpdate();
    this.emitSelectionUpdate();
  }

  private emitSelectionUpdate() {
    this.dispatchEvent(new CustomEvent('selectionChanged', {
      detail: {
        selectedServices: this.services.filter(s => s.selected).map(s => s.id)
      },
      bubbles: true,
      composed: true
    }));
  }
  
  private renderServiceGrid(): TemplateResult {
    const filteredServices = this.getFilteredServices();
    
    if (filteredServices.length === 0) {
      return html`<div class="no-results">No services found matching your criteria</div>`;
    }
    
    return html`${filteredServices.map(service => html`
      <div 
        class="asset-card ${service.selected ? 'selected' : ''}"
        @click=${() => this.toggleService(service.id)}
      >
        <input
          type="checkbox"
          class="asset-checkbox"
          .checked=${service.selected}
          @click=${(e: Event) => e.stopPropagation()}
          @change=${(e: Event) => {
            e.stopPropagation();
            this.toggleService(service.id);
          }}
        />
        
        <div class="asset-info">
          <div class="asset-name">${service.displayName}</div>
          ${service.description ? html`
            <div class="asset-description">${service.description}</div>
          ` : ''}
        </div>
        
        <div class="asset-status">
          <div class="status-indicator ${service.currentStatus}"></div>
          <div class="status-text">${service.currentStatus.replace(/_/g, ' ')}</div>
        </div>
      </div>
    `)}`;
  }
}