import Period, { CUSTOM_RANGE } from 'Types/app/period';
import { filtersMap } from 'Types/filter/newFilter';


class Filter {
  key: string;
  operator: string;
  value?: string[];
  filters?: Filter[];

  constructor(key: string, operator: string, value?: string[], filters?: Filter[]) {
    this.key = key;
    this.operator = operator;
    this.value = value;
    this.filters = filters;
  }

  toJSON(): any {
    return {
      key: this.key,
      operator: this.operator,
      value: this.value,
      filters: this.filters ? this.filters.map(f => f.toJSON()) : undefined
    };
  }
}

class InputJson {
  filters: Filter[];
  rangeValue: string;
  startDate: number;
  endDate: number;
  sort: string;
  order: string;
  strict: boolean;
  eventsOrder: string;

  constructor(filters: Filter[], rangeValue: string, startDate: number, endDate: number, sort: string, order: string, strict: boolean, eventsOrder: string) {
    this.filters = filters;
    //   .map((f: any) => {
    //   const subFilters = f.filters ? f.filters.map((sf: any) => new Filter(sf.key, sf.operator, sf.value, sf.filters)) : undefined;
    //   return new Filter(f.key, f.operator, f.value, subFilters);
    // });
    this.rangeValue = rangeValue;
    this.startDate = startDate;
    this.endDate = endDate;
    this.sort = sort;
    this.order = order;
    this.strict = strict;
    this.eventsOrder = eventsOrder;
  }

  toJSON() {
    return {
      filters: this.filters.map(f => f.toJSON()),
      rangeValue: this.rangeValue,
      startDate: this.startDate,
      endDate: this.endDate,
      sort: this.sort,
      order: this.order,
      strict: this.strict,
      eventsOrder: this.eventsOrder
    };
  }
}


export class JsonUrlConverter {
  static keyMap = {
    rangeValue: 'rv',
    startDate: 'sd',
    endDate: 'ed',
    sort: 's',
    order: 'o',
    strict: 'st',
    eventsOrder: 'eo',
    key: 'k',
    operator: 'op',
    value: 'v',
    filters: 'f'
  };

  static getDateRangeValues(rangeValue: string, startDate: number | undefined, endDate: number | undefined): [number, number] {
    if (rangeValue === 'CUSTOM_RANGE') {
      return [startDate!, endDate!];
    }
    const period = Period({ rangeName: rangeValue });
    return [period.start, period.end];
  }

  static jsonToUrlParams(json: InputJson): string {
    const params = new URLSearchParams();

    const addFilterParams = (filter: Filter, prefix: string) => {
      params.append(`${prefix}${this.keyMap.key}`, filter.key);
      params.append(`${prefix}${this.keyMap.operator}`, filter.operator);
      if (filter.value) {
        filter.value.forEach((v, i) => params.append(`${prefix}${this.keyMap.value}[${i}]`, v || ''));
      }
      if (filter.filters) {
        filter.filters.forEach((f, i) => addFilterParams(f, `${prefix}${this.keyMap.filters}[${i}].`));
      }
    };

    json.filters.forEach((filter, index) => addFilterParams(filter, `${this.keyMap.filters}[${index}].`));

    const rangeValues = this.getDateRangeValues(json.rangeValue, json.startDate, json.endDate);

    params.append(this.keyMap.rangeValue, json.rangeValue);
    params.append(this.keyMap.startDate, rangeValues[0].toString());
    params.append(this.keyMap.endDate, rangeValues[1].toString());
    params.append(this.keyMap.sort, json.sort);
    params.append(this.keyMap.order, json.order);
    params.append(this.keyMap.strict, json.strict.toString());
    params.append(this.keyMap.eventsOrder, json.eventsOrder);

    return decodeURIComponent(params.toString());
  }

  static urlParamsToJson(urlParams: string): InputJson {
    const params = new URLSearchParams(urlParams);

    const getFilterParams = (prefix: string): Filter => {
      const key = params.get(`${prefix}${this.keyMap.key}`) || '';
      const operator = params.get(`${prefix}${this.keyMap.operator}`) || '';
      const value: string[] = [];
      let index = 0;
      while (params.has(`${prefix}${this.keyMap.value}[${index}]`)) {
        value.push(params.get(`${prefix}${this.keyMap.value}[${index}]`) || '');
        index++;
      }
      const filters: Filter[] = [];
      index = 0;
      while (params.has(`${prefix}${this.keyMap.filters}[${index}].${this.keyMap.key}`)) {
        filters.push(getFilterParams(`${prefix}${this.keyMap.filters}[${index}].`));
        index++;
      }
      return new Filter(key, operator, value.length ? value : '', filters.length ? filters : []);
    };

    const filters: Filter[] = [];
    let index = 0;
    while (params.has(`${this.keyMap.filters}[${index}].${this.keyMap.key}`)) {
      filters.push(getFilterParams(`${this.keyMap.filters}[${index}].`));
      index++;
    }

    const rangeValue = params.get(this.keyMap.rangeValue) || 'LAST_24_HOURS';
    const rangeValues = this.getDateRangeValues(rangeValue, params.get(this.keyMap.startDate), params.get(this.keyMap.endDate));
    const startDate = rangeValues[0];
    const endDate = rangeValues[1];

    return new InputJson(
      filters,
      rangeValue,
      startDate,
      endDate,
      params.get(this.keyMap.sort) || 'startTs',
      params.get(this.keyMap.order) || 'desc',
      params.get(this.keyMap.strict) === 'true',
      params.get(this.keyMap.eventsOrder) || 'then'
    );
  }
}

// Example usage
// const urlParams = '?f[0].k=click&f[0].op=on&f[0].v[0]=Refresh&f[1].k=fetch&f[1].op=is&f[1].v[0]=&f[1].f[0].k=fetchUrl&f[1].f[0].op=is&f[1].f[0].v[0]=/g/collect&f[1].f[1].k=fetchStatusCode&f[1].f[1].op=>=&f[1].f[1].v[0]=400&f[1].f[2].k=fetchMethod&f[1].f[2].op=is&f[1].f[2].v[0]=&f[1].f[3].k=fetchDuration&f[1].f[3].op==&f[1].f[3].v[0]=&f[1].f[4].k=fetchRequestBody&f[1].f[4].op=is&f[1].f[4].v[0]=&f[1].f[5].k=fetchResponseBody&f[1].f[5].op=is&f[1].f[5].v[0]=&rv=LAST_24_HOURS&sd=1731343412555&ed=1731429812555&s=startTs&o=desc&st=false&eo=then';
// const parsedJson = JsonUrlConverter.urlParamsToJson(urlParams);
// console.log(parsedJson);

// const inputJson: any = {"filters":[{"key":"input","operator":"is","value":["one","two"],"filters":null},{"key":"fetch","operator":"is","filters":[{"key":"fetchUrl","operator":"is","value":["PATH","another"]},{"key":"fetchStatusCode","operator":"=","value":["400","200"]},{"key":"fetchMethod","operator":"is","value":["PUT","POST"]},{"key":"fetchDuration","operator":">=","value":["1"]},{"key":"fetchRequestBody","operator":"is","value":[null]},{"key":"fetchResponseBody","operator":"is","value":[null]}],"value":[""]}],"rangeValue":"LAST_24_HOURS","startDate":1720952011000,"endDate":1721038411000,"sort":"startTs","order":"desc","strict":false,"eventsOrder":"then"};
// const urlParams = JsonUrlConverter.jsonToUrlParams(inputJson);
// const parsedJson = JsonUrlConverter.urlParamsToJson(urlParams);
//
// console.log(urlParams);
// console.log(parsedJson);