import {
  DeesElement,
  html,
  customElement,
  type TemplateResult,
  css,
  state,
  cssManager,
} from '@design.estate/dees-element';
import * as appstate from '../appstate.js';
import * as interfaces from '../../dist_ts_interfaces/index.js';
import { viewHostCss } from './shared/css.js';
import { type IStatsTile } from '@design.estate/dees-catalog';

declare global {
  interface HTMLElementTagNameMap {
    'ops-view-remoteingress': OpsViewRemoteIngress;
  }
}

@customElement('ops-view-remoteingress')
export class OpsViewRemoteIngress extends DeesElement {
  @state()
  accessor riState: appstate.IRemoteIngressState = appstate.remoteIngressStatePart.getState();

  constructor() {
    super();
    const sub = appstate.remoteIngressStatePart.state.subscribe((newState) => {
      this.riState = newState;
    });
    this.rxSubscriptions.push(sub);
  }

  async connectedCallback() {
    await super.connectedCallback();
    await appstate.remoteIngressStatePart.dispatchAction(appstate.fetchRemoteIngressAction, null);
  }

  public static styles = [
    cssManager.defaultStyles,
    viewHostCss,
    css`
      .remoteIngressContainer {
        display: flex;
        flex-direction: column;
        gap: 24px;
      }

      .statusBadge {
        display: inline-flex;
        align-items: center;
        padding: 3px 10px;
        border-radius: 12px;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.02em;
        text-transform: uppercase;
      }

      .statusBadge.connected {
        background: ${cssManager.bdTheme('#dcfce7', '#14532d')};
        color: ${cssManager.bdTheme('#166534', '#4ade80')};
      }

      .statusBadge.disconnected {
        background: ${cssManager.bdTheme('#fef2f2', '#450a0a')};
        color: ${cssManager.bdTheme('#991b1b', '#f87171')};
      }

      .statusBadge.disabled {
        background: ${cssManager.bdTheme('#f3f4f6', '#374151')};
        color: ${cssManager.bdTheme('#6b7280', '#9ca3af')};
      }

      .secretDialog {
        padding: 16px;
        background: ${cssManager.bdTheme('#fffbeb', '#1c1917')};
        border: 1px solid ${cssManager.bdTheme('#fbbf24', '#92400e')};
        border-radius: 8px;
        margin-bottom: 16px;
      }

      .secretDialog code {
        display: block;
        padding: 8px 12px;
        background: ${cssManager.bdTheme('#1f2937', '#111827')};
        color: #10b981;
        border-radius: 4px;
        font-family: monospace;
        font-size: 13px;
        word-break: break-all;
        margin: 8px 0;
        user-select: all;
      }

      .secretDialog .warning {
        font-size: 12px;
        color: ${cssManager.bdTheme('#92400e', '#fbbf24')};
        margin-top: 8px;
      }

      .portsDisplay {
        display: flex;
        gap: 4px;
        flex-wrap: wrap;
      }

      .portBadge {
        display: inline-flex;
        padding: 2px 8px;
        border-radius: 4px;
        font-size: 12px;
        font-weight: 500;
        background: ${cssManager.bdTheme('#eff6ff', '#172554')};
        color: ${cssManager.bdTheme('#1e40af', '#60a5fa')};
      }
    `,
  ];

  render(): TemplateResult {
    const totalEdges = this.riState.edges.length;
    const connectedEdges = this.riState.statuses.filter(s => s.connected).length;
    const disconnectedEdges = totalEdges - connectedEdges;
    const activeTunnels = this.riState.statuses.reduce((sum, s) => sum + s.activeTunnels, 0);

    const statsTiles: IStatsTile[] = [
      {
        id: 'totalEdges',
        title: 'Total Edges',
        type: 'number',
        value: totalEdges,
        icon: 'lucide:server',
        description: 'Registered edge nodes',
        color: '#3b82f6',
      },
      {
        id: 'connectedEdges',
        title: 'Connected',
        type: 'number',
        value: connectedEdges,
        icon: 'lucide:link',
        description: 'Currently connected edges',
        color: '#10b981',
      },
      {
        id: 'disconnectedEdges',
        title: 'Disconnected',
        type: 'number',
        value: disconnectedEdges,
        icon: 'lucide:unlink',
        description: 'Offline edge nodes',
        color: disconnectedEdges > 0 ? '#ef4444' : '#6b7280',
      },
      {
        id: 'activeTunnels',
        title: 'Active Tunnels',
        type: 'number',
        value: activeTunnels,
        icon: 'lucide:cable',
        description: 'Active client connections',
        color: '#8b5cf6',
      },
    ];

    return html`
      <ops-sectionheading>Remote Ingress</ops-sectionheading>

      ${this.riState.newEdgeSecret ? html`
        <div class="secretDialog">
          <strong>Edge Secret (copy now - shown only once):</strong>
          <code>${this.riState.newEdgeSecret}</code>
          <div class="warning">This secret will not be shown again. Save it securely.</div>
          <dees-button
            @click=${() => appstate.remoteIngressStatePart.dispatchAction(appstate.clearNewEdgeSecretAction, null)}
          >Dismiss</dees-button>
        </div>
      ` : ''}

      <div class="remoteIngressContainer">
        <dees-statsgrid .tiles=${statsTiles}></dees-statsgrid>

        <dees-table
          .heading1=${'Edge Nodes'}
          .heading2=${'Manage remote ingress edge registrations'}
          .data=${this.riState.edges}
          .displayFunction=${(edge: interfaces.data.IRemoteIngress) => ({
            name: edge.name,
            status: this.getEdgeStatusHtml(edge),
            publicIp: this.getEdgePublicIp(edge.id),
            ports: this.getPortsHtml(edge.listenPorts),
            tunnels: this.getEdgeTunnelCount(edge.id),
            lastHeartbeat: this.getLastHeartbeat(edge.id),
          })}
          .dataActions=${[
            {
              name: 'Create Edge Node',
              iconName: 'lucide:plus',
              type: ['header'],
              actionFunc: async () => {
                const { DeesModal } = await import('@design.estate/dees-catalog');
                const result = await DeesModal.createAndShow({
                  heading: 'Create Edge Node',
                  content: html`
                    <dees-form>
                      <dees-input-text .key=${'name'} .label=${'Name'} .required=${true}></dees-input-text>
                      <dees-input-text .key=${'listenPorts'} .label=${'Listen Ports (comma-separated)'} .required=${true} .value=${'443,25'}></dees-input-text>
                      <dees-input-text .key=${'tags'} .label=${'Tags (comma-separated, optional)'}></dees-input-text>
                    </dees-form>
                  `,
                  menuOptions: [],
                });
                if (result) {
                  const formData = result as any;
                  const ports = (formData.name ? formData.listenPorts : '443')
                    .split(',')
                    .map((p: string) => parseInt(p.trim(), 10))
                    .filter((p: number) => !isNaN(p));
                  const tags = formData.tags
                    ? formData.tags.split(',').map((t: string) => t.trim()).filter(Boolean)
                    : undefined;
                  await appstate.remoteIngressStatePart.dispatchAction(
                    appstate.createRemoteIngressAction,
                    {
                      name: formData.name,
                      listenPorts: ports,
                      tags,
                    },
                  );
                }
              },
            },
            {
              name: 'Regenerate Secret',
              iconName: 'lucide:key',
              type: ['row'],
              action: async (edge: interfaces.data.IRemoteIngress) => {
                await appstate.remoteIngressStatePart.dispatchAction(
                  appstate.regenerateRemoteIngressSecretAction,
                  edge.id,
                );
              },
            },
            {
              name: 'Delete',
              iconName: 'lucide:trash2',
              type: ['row'],
              action: async (edge: interfaces.data.IRemoteIngress) => {
                await appstate.remoteIngressStatePart.dispatchAction(
                  appstate.deleteRemoteIngressAction,
                  edge.id,
                );
              },
            },
          ]}
        ></dees-table>
      </div>
    `;
  }

  private getEdgeStatus(edgeId: string): interfaces.data.IRemoteIngressStatus | undefined {
    return this.riState.statuses.find(s => s.edgeId === edgeId);
  }

  private getEdgeStatusHtml(edge: interfaces.data.IRemoteIngress): TemplateResult {
    if (!edge.enabled) {
      return html`<span class="statusBadge disabled">Disabled</span>`;
    }
    const status = this.getEdgeStatus(edge.id);
    if (status?.connected) {
      return html`<span class="statusBadge connected">Connected</span>`;
    }
    return html`<span class="statusBadge disconnected">Disconnected</span>`;
  }

  private getEdgePublicIp(edgeId: string): string {
    const status = this.getEdgeStatus(edgeId);
    return status?.publicIp || '-';
  }

  private getPortsHtml(ports: number[]): TemplateResult {
    return html`<div class="portsDisplay">${ports.map(p => html`<span class="portBadge">${p}</span>`)}</div>`;
  }

  private getEdgeTunnelCount(edgeId: string): number {
    const status = this.getEdgeStatus(edgeId);
    return status?.activeTunnels || 0;
  }

  private getLastHeartbeat(edgeId: string): string {
    const status = this.getEdgeStatus(edgeId);
    if (!status?.lastHeartbeat) return '-';
    const ago = Date.now() - status.lastHeartbeat;
    if (ago < 60000) return `${Math.floor(ago / 1000)}s ago`;
    if (ago < 3600000) return `${Math.floor(ago / 60000)}m ago`;
    return `${Math.floor(ago / 3600000)}h ago`;
  }
}