import { IConfig, IDataService, IParam, IData, IGroup } from 'app/nodes/configs.interfaces';
import { CONFIG, PARAMETER_TYPE } from 'app/nodes/types';
import { createBaseParam, createBaseData } from 'app/nodes/utils';
const range = require('range').range;

const ppgParam = createBaseParam({title: 'PPG Config', service: 'bf00', characteristic: 'bf05'});
const ppgData = createBaseData({title: 'PPG Data', service: 'bf00', littleEndian: true, bytesPerSample: 3, bytesPerPackage: 12});

/* config */

const greenLED = ppgParam({ name: 'Green LED', offset: 2, bits: 6 });
const redLED = ppgParam({ name: 'Red LED', offset: 2 * 8 + 2, bits: 6 });
const infraredLED = ppgParam({ name: 'Infrared LED', offset: 1 * 8 + 2, bits: 6 });
const greenOffset = ppgParam({ name: 'Green offset', offset: 3 * 8 + 3, bits: 4 });
const redOffset = ppgParam({ name: 'Red offset', offset: 5 * 8 + 3, bits: 4 });
const infraredOffset = ppgParam({ name: 'Infrared offset', offset: 4 * 8 + 3, bits: 4 });
const gain = ppgParam({
  id: CONFIG.GAIN, name: 'Gain', offset: 6 * 8, bits: 3, type: PARAMETER_TYPE.DROPDOWN,
  values: [
    { key: '10 kΩ', value: 0b101 },
    { key: '25 kΩ', value: 0b100 },
    { key: '50 kΩ', value: 0b011 },
    { key: '100 kΩ', value: 0b010 },
    { key: '250 kΩ', value: 0b001 },
    { key: '500 kΩ', value: 0b000 },
    { key: '1 MΩ', value: 0b110 },
    { key: '2 MΩ', value: 0b111 },
  ]
});
const filterCapacitor = ppgParam({
  id: CONFIG.FILTER_CAPACITOR, name: 'Filter capacitor', offset: 6 * 8, bits: 3, type: PARAMETER_TYPE.DROPDOWN,
  values: [
    { key: '5 pF', value: 0b000 },
    { key: '2.5 pF', value: 0b001 },
    { key: '7.5 pF', value: 0b011 },
    { key: '10 pF', value: 0b010 },
    { key: '17.5 pF', value: 0b101 },
    { key: '20.5 pF', value: 0b100 },
    { key: '22.5 pF', value: 0b111 },
    { key: '25 pF', value: 0b110 },
  ]
});

/* data */

const greenLEDData = ppgData({ name: 'PPG Green LED', characteristic: 'bf01', read: readLED });
const infraredLEDData = ppgData({ name: 'PPG Infrared LED', characteristic: 'bf02', read: readLED });
const redLEDData = ppgData({ name: 'PPG Red LED', characteristic: 'bf03', read: readLED });

/* ui grouping */

const LEDGroup: IGroup = {
  title: 'LED',
  sections: [{
    title: 'Red',
    toggle: redLEDData,
    items: [ redLED, redOffset ]
  }, {
    title: 'Green',
    toggle: greenLEDData,
    items: [ greenLED, greenOffset ]
  }, {
    title: 'Infrared',
    toggle: infraredLEDData,
    items: [ infraredLED, infraredOffset ]
  }]
};

const GainGroup: IGroup = {
  title: 'Gain',
  sections: [
    {
      title: 'Gain',
      items: [ gain ]
    }
  ]
};


const FilterGroup: IGroup = {
  title: 'Filter',
  sections: [
    {
      title: 'Filter',
      items: [ filterCapacitor ]
    }
  ]
};


/* read function */
export function readLED(buffer: Buffer): number[] {
  const bytesPerSample = 3;
  const bytesPerPackage = 12;
  return range(bytesPerPackage / bytesPerSample)
    .map(i => buffer.readIntLE(i * bytesPerSample, bytesPerSample));
}

export const groups: IGroup[] = [LEDGroup, GainGroup, FilterGroup];