import {
  IAction,
  IActionResult,
  IActionNode,
  IActionProperty,
  IContext,
} from "../types/ActionTypes";
import { actionAddins } from ".";


type DataProcessingProps = {
  app: {
    id: string;
    name: string;
  };
  conditionsQuery: string;
  propcessing: {
    varRootName: string;
    fields: Field[];
  };
};

type Field = {
  name: string;
  code: string;
  type: string;
  varName: string;
  operator: string;
};

export class DataProcessingAction implements IAction {
  name: string;
  actionProps: IActionProperty[];
  dataProcessingProps: DataProcessingProps | null;
  constructor() {
    this.name = "データ処理";
    this.actionProps = [];
    this.dataProcessingProps = null;
    this.register();
  }

  async process(
    nodes: IActionNode,event: any,context: IContext
  ): Promise<IActionResult> {
    this.initActionProps(nodes);
    this.initTypedActionProps();
    let result = {
      canNext: true,
      result: "",
    } as IActionResult;
    try {
      if (!this.dataProcessingProps) {
        return result;
      }
    
      const data = await selectData(this.dataProcessingProps.conditionsQuery);
      console.log("data ", data);

      context.variables[this.dataProcessingProps.propcessing.varRootName] =
        this.dataProcessingProps.propcessing.fields.reduce((acc, f) => {
          const v = calc(f, data);
          if (v) {
            acc[f.varName] = calc(f, data);
          }
          return acc;
        }, {} as Var);

      console.log("context ", context);
      return result;
    } catch (error) {
      console.error(error);
      event.error=error;
      return result;
    }
  }

  register(): void {
    actionAddins[this.name] = this;
  }

  private initActionProps(nodes: IActionNode) {
    this.actionProps = nodes.actionProps;
  }

  private initTypedActionProps() {
    this.dataProcessingProps = {
      app: {
        id: "",
        name: "",
      },
      conditionsQuery: "",
      propcessing: {
        varRootName: "",
        fields: [],
      },
    };
    for (const action of this.actionProps) {
      if (action.component === "AppFieldSelect") {
        this.dataProcessingProps.app.id = action.props.modelValue.app.id;
        this.dataProcessingProps.app.name = action.props.modelValue.app.name;
      } else if (action.component === "DataProcessing") {
        this.dataProcessingProps.propcessing.varRootName =
          action.props.modelValue.name;
        for (const f of action.props.modelValue.vars) {
          this.dataProcessingProps.propcessing.fields.push({
            name: f.field.name,
            code: f.field.code,
            type: f.field.type,
            varName: f.vName,
            operator: f.logicalOperator.operator,
          });
        }
      } else if (action.component === "ConditionInput") {
        this.dataProcessingProps.conditionsQuery = JSON.parse(
          action.props.modelValue
        ).queryString;
      }
    }
  }
}

new DataProcessingAction();

const selectData = async (query?: string) => {
  return kintone
    .api(kintone.api.url("/k/v1/records", true), "GET", {
      app: kintone.app.getId(),
      query: query,
    })
    .then((resp: Resp) => {
      const result: Result = {};
      resp.records.forEach((element) => {
        for (const [key, value] of Object.entries(element)) {
          if (!result[key]) {
            result[key] = { type: value.type, value: [] };
          }
          result[key].value.push(value.value);
        }
      });
      return result;
    });
};

type Resp = { records: RespRecordType[] };

type RespRecordType = {
  [key: string]: {
    type: string;
    value: any;
  };
};

type Result = {
  [key: string]: {
    type: string;
    value: any[];
  };
};

type Var = {
  [key: string]: any;
};

const ERROR_TYPE = "ERROR_TYPE";

const calc = (field: Field, result: Result) => {
  const type = typeCheck(field.type);
  if (!type) {
    return ERROR_TYPE;
  }

  const fun =
    calcFunc[`${type}_${Operator[field.operator as keyof typeof Operator]}`];
  if (!fun) {
    return ERROR_TYPE;
  }
  const values = result[field.code].value;
  if (!values) {
    return null;
  }
  return fun(values);
};

const typeCheck = (type: string) => {
  switch (type) {
    case "RECORD_NUMBER":
    case "NUMBER":
      return CalcType.NUMBER;
    case "SINGLE_LINE_TEXT":
    case "MULTI_LINE_TEXT":
    case "RICH_TEXT":
      return CalcType.STRING;
    case "DATE":
      return CalcType.DATE;
    case "TIME":
      return CalcType.TIME;
    case "DATETIME":
    case "UPDATED_TIME":
      return CalcType.DATETIME;
    default:
      return null;
  }
};

enum Operator {
  SUM = "SUM",
  AVG = "AVG",
  MAX = "MAX",
  MIN = "MIN",
  COUNT = "COUNT",
  FIRST = "FIRST"
}

enum CalcType {
  NUMBER = "number",
  STRING = "string",
  DATE = "date",
  TIME = "time",
  DATETIME = "datetime",
}

const calcFunc: Record<string, (value: string[]) => string | null> = {
  [`${CalcType.NUMBER}_${Operator.COUNT}`]: (value: string[]) =>
    value.length.toString(),
  [`${CalcType.STRING}_${Operator.COUNT}`]: (value: string[]) =>
    value.length.toString(),
  [`${CalcType.DATE}_${Operator.COUNT}`]: (value: string[]) =>
    value.length.toString(),
  [`${CalcType.TIME}_${Operator.COUNT}`]: (value: string[]) =>
    value.length.toString(),
  [`${CalcType.DATETIME}_${Operator.COUNT}`]: (value: string[]) =>
    value.length.toString(),

  [`${CalcType.NUMBER}_${Operator.SUM}`]: (value: string[]) =>
    value.reduce((acc, v) => acc + Number(v), 0).toString(),
  [`${CalcType.NUMBER}_${Operator.AVG}`]: (value: string[]) =>
    (value.reduce((acc, v) => acc + Number(v), 0) / value.length).toString(),
  [`${CalcType.NUMBER}_${Operator.MAX}`]: (value: string[]) =>
    Math.max(...value.map(Number)).toString(),
  [`${CalcType.NUMBER}_${Operator.MIN}`]: (value: string[]) =>
    Math.min(...value.map(Number)).toString(),

  [`${CalcType.STRING}_${Operator.SUM}`]: (value: string[]) => value.join(" "),

  [`${CalcType.DATE}_${Operator.MAX}`]: (value: string[]) =>
    value.reduce((maxDate, currentDate) =>
      maxDate > currentDate ? maxDate : currentDate
    ),

  [`${CalcType.DATE}_${Operator.MIN}`]: (value: string[]) =>
    value.reduce((minDate, currentDate) =>
      minDate < currentDate ? minDate : currentDate
    ),

  [`${CalcType.TIME}_${Operator.MAX}`]: (value: string[]) =>
    value.reduce((maxTime, currentTime) =>
      maxTime > currentTime ? maxTime : currentTime
    ),
  [`${CalcType.TIME}_${Operator.MIN}`]: (value: string[]) =>
    value.reduce((minTime, currentTime) =>
      minTime < currentTime ? minTime : currentTime
    ),

  [`${CalcType.DATETIME}_${Operator.MAX}`]: (value: string[]) =>
    value.reduce((maxDateTime, currentDateTime) =>
      new Date(maxDateTime) > new Date(currentDateTime)
        ? maxDateTime
        : currentDateTime
    ),

  [`${CalcType.DATETIME}_${Operator.MIN}`]: (value: string[]) =>
    value.reduce((minDateTime, currentDateTime) =>
      new Date(minDateTime) < new Date(currentDateTime)
        ? minDateTime
        : currentDateTime
    ),
  [`${CalcType.STRING}_${Operator.FIRST}`]:(value: string[])=>{
    return value[0];
  }
};