import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class ChartService {

  constructor() { }

  getChartOptions(strategyName: any, fetchData: any): any[] {
    const strategyConfig: any = {

      'RSI 14': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'Overbought/Oversold': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: true,
            levels: [
              { value: 70, color: '#FF0000', label: 'Overbought (70)' },
              { value: 30, color: '#008000', label: 'Oversold (30)' }
            ],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'RSI Swing Rejection': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'RSI Divergence': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'RSI 5/14 Crossover': {
        panels: [
          {
            indicators: ['RSI 14', 'RSI 5'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'RSI Trend 50 Confirmation': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: true,
            levels: [
              { value: 70, color: '#FF0000', label: 'Overbought (70)' },
              { value: 50, color: '#775DD0', label: 'RSI (50)' },
              { value: 30, color: '#008000', label: 'Oversold (30)' }
            ],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'Mean Reversion': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: true,
            levels: [
              { value: 80, color: '#FF0000', label: 'Overbought (80)' },
              { value: 20, color: '#008000', label: 'Oversold (20)' }
            ],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'RSI_Bollinger Band': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: true,
            levels: [
              { value: 70, color: '#FF0000', label: 'Overbought (70)' },
              { value: 30, color: '#008000', label: 'Oversold (30)' }
            ],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          },
          {
            indicators: ['Close', 'UpperBB', 'LowerBB'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {}  // auto-scaling
          }
        ]
      },
      'RSI_MA': {
        panels: [
          {
            indicators: ['RSI 14'],
            showAnnotations: true,
            levels: [
              { value: 70, color: '#FF0000', label: 'Overbought (70)' },
              { value: 30, color: '#008000', label: 'Oversold (30)' }
            ],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          },
          {
            indicators: ['Close', 'MA_20'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {}  // auto-scaling
          }
        ]
      },
      'MACD': {
        panels: [
          {
            indicators: ['MACDLine'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {}
          }
        ]
      },
      'MACD Line Crossover': {
        panels: [
          {
            indicators: ['MACDLine', 'MACDSignalLine', 'MACDHistogram'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {}
          }
        ]
      },
      'MACD Zero-Line Crossover': {
        panels: [
          {
            indicators: ['MACDLine'],
            showAnnotations: true,
            levels: [{ value: 0, color: '#FF0000', label: 'MACD ZeroLine' },],
            yaxisconfig: {}
          }
        ]
      },
      'MACD Momentum': {
        panels: [
          {
            indicators: ['MACDLine', 'MACDSignalLine', 'MACDHistogram'],
            showAnnotations: false,
            levels: [{ value: 0, color: '#FF0000', label: 'MACD ZeroLine' },],
            yaxisconfig: {}
          }
        ]
      },
      'ATR': {
        panels: [
          {
            indicators: ['ATRValue'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'ATR Breakout': {
        panels: [
          {
            indicators: ['ATRValue'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          },
          {
            indicators: ['Close'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling for Close Price
          }
        ]
      },
      'ATR Expansion': {
        panels: [
          {
            indicators: ['ATRValue'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'ATR Squeeze': {
        panels: [
          {
            indicators: ['ATRValue'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'ATR Trend Reversal': {
        panels: [
          {
            indicators: ['ATRValue'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'EMA 20': {
        panels: [
          {
            indicators: ['EMA 20'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },

      'EMA 50': {
        panels: [
          {
            indicators: ['EMA 50'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },

      'EMA Crossover': {
        panels: [
          {
            indicators: ['EMA 20', 'EMA 50'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'EMA Price Crossover': {
        panels: [
          {
            indicators: ['EMA 20', 'Close'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'Triple EMA': {
        panels: [
          {
            indicators: ['EMA 5', 'EMA 20', 'EMA 50'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },
      'ADX': {
        panels: [
          {
            indicators: ['ADX_Indicator'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },

      'ADX + DI Crossover': {
        panels: [
          {
            indicators: ['ADX_Indicator', 'PLUS_DI', 'MINUS_DI'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'ADX Divergence': {
        panels: [
          {
            indicators: ['ADX_Indicator'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          },
          {
            indicators: ['Close'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scale for price
          }
        ]
      },
      'ADX Slope': {
        panels: [
          {
            indicators: ['ADX_Indicator'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          }
        ]
      },
      'ADX Breakout': {
        panels: [
          {
            indicators: ['ADX_Indicator'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {
              min: 0,
              max: 100
            }
          },
          {
            indicators: ['Close'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scale for price
          }
        ]
      },
      'Fibonacci Retracement Bounce': {
        panels: [
          {
            indicators: ['Candlestick'],
            showAnnotations: true,
            levels: [
              { value: 0.382, color: '#00008B', label: '38.2%' },
              { value: 0.5, color: '#FF0000', label: '50%' },
              { value: 0.618, color: '#FF5722', label: '61.8%' }
            ],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },

      'Fibonacci Breakout': {
        panels: [
          {
            indicators: ['Candlestick'],
            showAnnotations: true,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },

      'Fibonacci Confluence': {
        panels: [
          {
            indicators: ['Close', 'EMA9'],
            showAnnotations: true,
            levels: [],  // dynamically filled
            yaxisconfig: {}  // auto-scaling
          }
        ]
      },

      'Golden Pocket Reversal': {
        panels: [
          {
            indicators: ['Candlestick'],
            showAnnotations: true,
            levels: [
              { value: fetchData.FIB_61_8, color: '#FF0000', label: '61.8%' },
              { value: fetchData.FIB_65, color: '#FFC107', label: '65%' }
            ],
            yaxisconfig: {}  // auto-scaling
          }
        ]
      },

      'BB Squeeze': {
        panels: [
          {
            indicators: ['Close', 'UpperBB', 'LowerBB'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },

      'BB Breakout': {
        panels: [
          {
            indicators: ['Close', 'UpperBB', 'LowerBB'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },


      'BB Reversal': {
        panels: [
          {
            indicators: ['Close', 'UpperBB', 'LowerBB'],
            showAnnotations: false,
            levels: [],
            yaxisconfig: {} // auto-scaling
          }
        ]
      },



    };

    const config = strategyConfig[strategyName];

    if (strategyName === 'Fibonacci Breakout') {
      config.panels[0].levels = [
        { value: fetchData.FIB_61_8, color: '#FF5722', label: '61.8% Breakout' }
      ];
    }

    // For Fibonacci Retracement Bounce, convert levels to price-based annotations
    if (strategyName === 'Fibonacci Retracement Bounce') {
      config.panels[0].levels = [
        { value: fetchData.FIB_38_2, color: '#00008B', label: '38.2%' },
        { value: fetchData.FIB_50, color: '#FF0000', label: '50%' },
        { value: fetchData.FIB_61_8, color: '#FF5722', label: '61.8%' }
      ];
    }

    if (strategyName === 'Fibonacci Confluence') {
      config.panels[0].levels = [
        { value: fetchData.FIB_61_8, color: '#FF5722', label: '61.8% Confluence' }
      ];
    }


    const chartOptionsArray = config.panels.map((panel: any) => {
      const referenceData = fetchData[panel.indicators[0]];
      const categories = Object.keys(referenceData);

      const series = panel.indicators.map((indicator: string) => {
        const indicatorData = fetchData[indicator];

        if (indicator === 'Candlestick') {
          return {
            name: 'Candlestick',
            type: 'candlestick',
            data: indicatorData  // already in [{x, y: [o,h,l,c]}] format
          };
        }

        return {
          name: indicator,
          type: indicator === 'MACDHistogram' ? 'bar' : 'line',
          data: indicatorData ? Object.entries(indicatorData).map(([x, y]) => ({ x, y })) : []
        };
      });

      const annotations = panel.showAnnotations ? {
        yaxis: panel.levels.map((level: any) => ({
          y: level.value,
          borderColor: level.color,
          label: {
            borderColor: level.color,
            style: {
              color: '#fff',
              background: level.color
            },
            text: level.label
          }
        }))
      } : {};

      return {
        series: series,
        chart: {
          type: 'line',
          height: 500,
          width: 1300
        },
        xaxis: {
          categories: categories
        },
        yaxis: panel.yaxisconfig || {},
        stroke: {
          curve: 'smooth',
          width: 2
        },
        tooltip: {
          theme: 'dark'        
        },
        annotations: annotations
      };
    });

    return chartOptionsArray;
  }



}