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

declare global {
  interface HTMLElementTagNameMap {
    'ops-view-network': OpsViewNetwork;
  }
}

interface INetworkRequest {
  id: string;
  timestamp: number;
  method: string;
  url: string;
  hostname: string;
  port: number;
  protocol: 'http' | 'https' | 'tcp' | 'udp';
  statusCode?: number;
  duration: number;
  bytesIn: number;
  bytesOut: number;
  remoteIp: string;
  route?: string;
}

@customElement('ops-view-network')
export class OpsViewNetwork extends DeesElement {
  @state()
  private statsState = appstate.statsStatePart.getState();

  @state()
  private networkState = appstate.networkStatePart.getState();


  @state()
  private networkRequests: INetworkRequest[] = [];

  @state()
  private trafficDataIn: Array<{ x: string | number; y: number }> = [];
  
  @state()
  private trafficDataOut: Array<{ x: string | number; y: number }> = [];
  
  private lastTrafficUpdateTime = 0;
  private trafficUpdateInterval = 1000; // Update every 1 second
  private requestCountHistory = new Map<number, number>(); // Track requests per time bucket
  private trafficUpdateTimer: any = null;
  private requestsPerSecHistory: number[] = []; // Track requests/sec over time for trend
  
  // Removed byte tracking - now using real-time data from SmartProxy

  constructor() {
    super();
    this.subscribeToStateParts();
    this.initializeTrafficData();
    this.updateNetworkData();
    this.startTrafficUpdateTimer();
  }
  
  async disconnectedCallback() {
    await super.disconnectedCallback();
    this.stopTrafficUpdateTimer();
  }

  private subscribeToStateParts() {
    appstate.statsStatePart.state.subscribe((state) => {
      this.statsState = state;
      this.updateNetworkData();
    });
    
    appstate.networkStatePart.state.subscribe((state) => {
      this.networkState = state;
      this.updateNetworkData();
    });
  }
  
  private initializeTrafficData() {
    const now = Date.now();
    // Fixed 5 minute time range
    const range = 5 * 60 * 1000; // 5 minutes
    const bucketSize = range / 60; // 60 data points
    
    // Initialize with empty data points for both in and out
    const emptyData = Array.from({ length: 60 }, (_, i) => {
      const time = now - ((59 - i) * bucketSize);
      return {
        x: new Date(time).toISOString(),
        y: 0,
      };
    });
    
    this.trafficDataIn = [...emptyData];
    this.trafficDataOut = emptyData.map(point => ({ ...point }));
    
    this.lastTrafficUpdateTime = now;
  }

  public static styles = [
    cssManager.defaultStyles,
    viewHostCss,
    css`
      :host {
        display: block;
        padding: 24px;
      }

      .networkContainer {
        display: flex;
        flex-direction: column;
        gap: 24px;
      }

      dees-statsgrid {
        margin-bottom: 24px;
      }

      dees-chart-area {
        margin-bottom: 24px;
      }

      .protocolBadge {
        display: inline-flex;
        align-items: center;
        padding: 4px 8px;
        border-radius: 4px;
        font-size: 12px;
        font-weight: 500;
      }

      .protocolBadge.http {
        background: ${cssManager.bdTheme('#e3f2fd', '#1a2c3a')};
        color: ${cssManager.bdTheme('#1976d2', '#5a9fd4')};
      }

      .protocolBadge.https {
        background: ${cssManager.bdTheme('#e8f5e9', '#1a3a1a')};
        color: ${cssManager.bdTheme('#388e3c', '#66bb6a')};
      }

      .protocolBadge.tcp {
        background: ${cssManager.bdTheme('#fff3e0', '#3a2a1a')};
        color: ${cssManager.bdTheme('#f57c00', '#ff9933')};
      }

      .protocolBadge.smtp {
        background: ${cssManager.bdTheme('#f3e5f5', '#2a1a3a')};
        color: ${cssManager.bdTheme('#7b1fa2', '#ba68c8')};
      }

      .protocolBadge.dns {
        background: ${cssManager.bdTheme('#e0f2f1', '#1a3a3a')};
        color: ${cssManager.bdTheme('#00796b', '#4db6ac')};
      }

      .statusBadge {
        display: inline-flex;
        align-items: center;
        padding: 4px 8px;
        border-radius: 4px;
        font-size: 12px;
        font-weight: 500;
      }

      .statusBadge.success {
        background: ${cssManager.bdTheme('#e8f5e9', '#1a3a1a')};
        color: ${cssManager.bdTheme('#388e3c', '#66bb6a')};
      }

      .statusBadge.error {
        background: ${cssManager.bdTheme('#ffebee', '#3a1a1a')};
        color: ${cssManager.bdTheme('#d32f2f', '#ff6666')};
      }

      .statusBadge.warning {
        background: ${cssManager.bdTheme('#fff3e0', '#3a2a1a')};
        color: ${cssManager.bdTheme('#f57c00', '#ff9933')};
      }
    `,
  ];

  public render() {
    return html`
      <ops-sectionheading>Network Activity</ops-sectionheading>
      
      <div class="networkContainer">
        <!-- Stats Grid -->
        ${this.renderNetworkStats()}

        <!-- Traffic Chart -->
        <dees-chart-area
          .label=${'Network Traffic'}
          .series=${[
            {
              name: 'Inbound',
              data: this.trafficDataIn,
              color: '#22c55e', // Green for download
            },
            {
              name: 'Outbound',
              data: this.trafficDataOut,
              color: '#8b5cf6', // Purple for upload
            }
          ]}
          .stacked=${false}
          .yAxisFormatter=${(val: number) => `${val} Mbit/s`}
          .tooltipFormatter=${(point: any) => {
            const mbps = point.y || 0;
            const seriesName = point.series?.name || 'Throughput';
            const timestamp = new Date(point.x).toLocaleTimeString();
            return `
              <div style="padding: 8px;">
                <div style="font-weight: bold; margin-bottom: 4px;">${timestamp}</div>
                <div>${seriesName}: ${mbps.toFixed(2)} Mbit/s</div>
              </div>
            `;
          }}
        ></dees-chart-area>

        <!-- Top IPs Section -->
        ${this.renderTopIPs()}

        <!-- Requests Table -->
        <dees-table
          .data=${this.networkRequests}
          .displayFunction=${(req: INetworkRequest) => ({
            Time: new Date(req.timestamp).toLocaleTimeString(),
            Protocol: html`<span class="protocolBadge ${req.protocol}">${req.protocol.toUpperCase()}</span>`,
            Method: req.method,
            'Host:Port': `${req.hostname}:${req.port}`,
            Path: this.truncateUrl(req.url),
            Status: this.renderStatus(req.statusCode),
            Duration: `${req.duration}ms`,
            'In/Out': `${this.formatBytes(req.bytesIn)} / ${this.formatBytes(req.bytesOut)}`,
            'Remote IP': req.remoteIp,
          })}
          .dataActions=${[
            {
              name: 'View Details',
              iconName: 'magnifyingGlass',
              type: ['inRow', 'doubleClick', 'contextmenu'],
              actionFunc: async (actionData) => {
                await this.showRequestDetails(actionData.item);
              }
            }
          ]}
          heading1="Recent Network Activity"
          heading2="Recent network requests"
          searchable
          .pagination=${true}
          .paginationSize=${50}
          dataName="request"
        ></dees-table>
      </div>
    `;
  }

  private async showRequestDetails(request: INetworkRequest) {
    const { DeesModal } = await import('@design.estate/dees-catalog');
    
    await DeesModal.createAndShow({
      heading: 'Request Details',
      content: html`
        <div style="padding: 20px;">
          <dees-dataview-codebox
            .heading=${'Request Information'}
            progLang="json"
            .codeToDisplay=${JSON.stringify({
              id: request.id,
              timestamp: new Date(request.timestamp).toISOString(),
              protocol: request.protocol,
              method: request.method,
              url: request.url,
              hostname: request.hostname,
              port: request.port,
              statusCode: request.statusCode,
              duration: `${request.duration}ms`,
              bytesIn: request.bytesIn,
              bytesOut: request.bytesOut,
              remoteIp: request.remoteIp,
              route: request.route,
            }, null, 2)}
          ></dees-dataview-codebox>
        </div>
      `,
      menuOptions: [
        {
          name: 'Copy Request ID',
          iconName: 'copy',
          action: async () => {
            await navigator.clipboard.writeText(request.id);
            console.log('Request ID copied to clipboard');
          }
        }
      ]
    });
  }


  private renderStatus(statusCode?: number): TemplateResult {
    if (!statusCode) {
      return html`<span class="statusBadge warning">N/A</span>`;
    }
    
    const statusClass = statusCode >= 200 && statusCode < 300 ? 'success' :
                       statusCode >= 400 ? 'error' : 'warning';
    
    return html`<span class="statusBadge ${statusClass}">${statusCode}</span>`;
  }

  private truncateUrl(url: string, maxLength = 50): string {
    if (url.length <= maxLength) return url;
    return url.substring(0, maxLength - 3) + '...';
  }


  private formatNumber(num: number): string {
    if (num >= 1000000) {
      return (num / 1000000).toFixed(1) + 'M';
    } else if (num >= 1000) {
      return (num / 1000).toFixed(1) + 'K';
    }
    return num.toFixed(0);
  }

  private formatBytes(bytes: number): string {
    const units = ['B', 'KB', 'MB', 'GB'];
    let size = bytes;
    let unitIndex = 0;
    
    while (size >= 1024 && unitIndex < units.length - 1) {
      size /= 1024;
      unitIndex++;
    }
    
    return `${size.toFixed(1)} ${units[unitIndex]}`;
  }
  
  private formatBitsPerSecond(bytesPerSecond: number): string {
    const bitsPerSecond = bytesPerSecond * 8; // Convert bytes to bits
    const units = ['bit/s', 'kbit/s', 'Mbit/s', 'Gbit/s'];
    let size = bitsPerSecond;
    let unitIndex = 0;
    
    while (size >= 1000 && unitIndex < units.length - 1) {
      size /= 1000; // Use 1000 for bits (not 1024)
      unitIndex++;
    }
    
    return `${size.toFixed(1)} ${units[unitIndex]}`;
  }

  private calculateRequestsPerSecond(): number {
    // Calculate from actual request data in the last minute
    const oneMinuteAgo = Date.now() - 60000;
    const recentRequests = this.networkRequests.filter(req => req.timestamp >= oneMinuteAgo);
    const reqPerSec = Math.round(recentRequests.length / 60);
    
    // Track history for trend (keep last 20 values)
    this.requestsPerSecHistory.push(reqPerSec);
    if (this.requestsPerSecHistory.length > 20) {
      this.requestsPerSecHistory.shift();
    }
    
    return reqPerSec;
  }

  private calculateThroughput(): { in: number; out: number } {
    // Use real throughput data from network state
    return {
      in: this.networkState.throughputRate.bytesInPerSecond,
      out: this.networkState.throughputRate.bytesOutPerSecond,
    };
  }

  private renderNetworkStats(): TemplateResult {
    const reqPerSec = this.calculateRequestsPerSecond();
    const throughput = this.calculateThroughput();
    const activeConnections = this.statsState.serverStats?.activeConnections || 0;

    // Use request count history for the requests/sec trend
    const trendData = [...this.requestsPerSecHistory];
    
    // If we don't have enough data, pad with zeros
    while (trendData.length < 20) {
      trendData.unshift(0);
    }

    const tiles: IStatsTile[] = [
      {
        id: 'connections',
        title: 'Active Connections',
        value: activeConnections,
        type: 'number',
        icon: 'plug',
        color: activeConnections > 100 ? '#f59e0b' : '#22c55e',
        description: `Total: ${this.statsState.serverStats?.totalConnections || 0}`,
        actions: [
          {
            name: 'View Details',
            iconName: 'magnifyingGlass',
            action: async () => {
            },
          },
        ],
      },
      {
        id: 'requests',
        title: 'Requests/sec',
        value: reqPerSec,
        type: 'trend',
        icon: 'chartLine',
        color: '#3b82f6',
        trendData: trendData,
        description: `Average over last minute`,
      },
      {
        id: 'throughputIn',
        title: 'Throughput In',
        value: this.formatBitsPerSecond(throughput.in),
        unit: '',
        type: 'number',
        icon: 'download',
        color: '#22c55e',
      },
      {
        id: 'throughputOut',
        title: 'Throughput Out',
        value: this.formatBitsPerSecond(throughput.out),
        unit: '',
        type: 'number',
        icon: 'upload',
        color: '#8b5cf6',
      },
    ];

    return html`
      <dees-statsgrid 
        .tiles=${tiles}
        .minTileWidth=${200}
        .gridActions=${[
          {
            name: 'Export Data',
            iconName: 'fileExport',
            action: async () => {
              console.log('Export feature coming soon');
            },
          },
        ]}
      ></dees-statsgrid>
    `;
  }

  
  private renderTopIPs(): TemplateResult {
    if (this.networkState.topIPs.length === 0) {
      return html``;
    }
    
    // Calculate total connections across all top IPs
    const totalConnections = this.networkState.topIPs.reduce((sum, ipData) => sum + ipData.count, 0);
    
    return html`
      <dees-table
        .data=${this.networkState.topIPs}
        .displayFunction=${(ipData: { ip: string; count: number }) => ({
          'IP Address': ipData.ip,
          'Connections': ipData.count,
          'Percentage': totalConnections > 0 ? ((ipData.count / totalConnections) * 100).toFixed(1) + '%' : '0%',
        })}
        heading1="Top Connected IPs"
        heading2="IPs with most active connections"
        .pagination=${false}
        dataName="ip"
      ></dees-table>
    `;
  }

  private async updateNetworkData() {
    // Convert connection data to network requests format
    if (this.networkState.connections.length > 0) {
      this.networkRequests = this.networkState.connections.map((conn, index) => ({
        id: conn.id,
        timestamp: conn.startTime,
        method: 'GET', // Default method for proxy connections
        url: '/',
        hostname: conn.remoteAddress,
        port: conn.protocol === 'https' ? 443 : 80,
        protocol: conn.protocol === 'https' || conn.protocol === 'http' ? conn.protocol : 'tcp',
        statusCode: conn.state === 'connected' ? 200 : undefined,
        duration: Date.now() - conn.startTime,
        bytesIn: conn.bytesReceived,
        bytesOut: conn.bytesSent,
        remoteIp: conn.remoteAddress,
        route: 'proxy',
      }));
    } else {
      this.networkRequests = [];
    }
    
    // Generate traffic data based on request history
    this.updateTrafficData();
  }

  private updateTrafficData() {
    const now = Date.now();
    // Fixed 5 minute time range
    const range = 5 * 60 * 1000; // 5 minutes
    const bucketSize = range / 60; // 60 data points // 60 data points
    
    // Check if enough time has passed to add a new data point
    const timeSinceLastUpdate = now - this.lastTrafficUpdateTime;
    const shouldAddNewPoint = timeSinceLastUpdate >= this.trafficUpdateInterval;
    
    console.log('UpdateTrafficData called:', {
      networkRequestsCount: this.networkRequests.length,
      timeSinceLastUpdate,
      shouldAddNewPoint,
      currentDataPoints: this.trafficDataIn.length
    });
    
    if (!shouldAddNewPoint && this.trafficDataIn.length > 0) {
      // Not enough time has passed, don't update
      return;
    }
    
    // Use real-time throughput data from SmartProxy (same as throughput tiles)
    const throughput = this.calculateThroughput();
    
    // Convert to Mbps (bytes * 8 / 1,000,000)
    const throughputInMbps = (throughput.in * 8) / 1000000;
    const throughputOutMbps = (throughput.out * 8) / 1000000;
    
    console.log('Throughput calculation:', {
      bytesInPerSecond: throughput.in,
      bytesOutPerSecond: throughput.out,
      throughputInMbps,
      throughputOutMbps,
      throughputTileValue: `${this.formatBitsPerSecond(throughput.in)} IN, ${this.formatBitsPerSecond(throughput.out)} OUT`
    });
    
    if (this.trafficDataIn.length === 0) {
      // Initialize if empty
      this.initializeTrafficData();
    } else {
      // Add new data points for both in and out
      const timestamp = new Date(now).toISOString();
      
      const newDataPointIn = {
        x: timestamp,
        y: Math.round(throughputInMbps * 10) / 10 // Round to 1 decimal place
      };
      
      const newDataPointOut = {
        x: timestamp,
        y: Math.round(throughputOutMbps * 10) / 10 // Round to 1 decimal place
      };
      
      // Create new arrays with existing data plus new points
      const newTrafficDataIn = [...this.trafficDataIn, newDataPointIn];
      const newTrafficDataOut = [...this.trafficDataOut, newDataPointOut];
      
      // Keep only the last 60 points
      if (newTrafficDataIn.length > 60) {
        newTrafficDataIn.shift(); // Remove oldest point
        newTrafficDataOut.shift();
      }
      
      this.trafficDataIn = newTrafficDataIn;
      this.trafficDataOut = newTrafficDataOut;
      this.lastTrafficUpdateTime = now;
      
      console.log('Added new traffic data points:', {
        timestamp: timestamp,
        throughputInMbps: newDataPointIn.y,
        throughputOutMbps: newDataPointOut.y,
        totalPoints: this.trafficDataIn.length
      });
    }
  }
  
  private startTrafficUpdateTimer() {
    this.stopTrafficUpdateTimer(); // Clear any existing timer
    this.trafficUpdateTimer = setInterval(() => {
      this.updateTrafficData();
    }, 1000); // Check every second, but only update when interval has passed
  }
  
  private stopTrafficUpdateTimer() {
    if (this.trafficUpdateTimer) {
      clearInterval(this.trafficUpdateTimer);
      this.trafficUpdateTimer = null;
    }
  }
  
}