import {
  IAction,
  IActionResult,
  IActionNode,
  IActionProperty,
  IContext,
} from "../types/ActionTypes";
import { actionAddins } from ".";
import { KintoneRestAPIClient } from "@kintone/rest-api-client";

interface Props {
  displayName: string;
  sources: Sources;
  dataMapping: DataMapping;
}

interface DataMapping {
  data: Mapping[];
  createWithNull: boolean;
}

interface Mapping {
  id: string;
  from: From;
  to: To;
  isKey: boolean;
}

interface To {
  app: App;
  fields: {
    name: string;
    type: string;
    code: string;
    label: string;
    noLabel: boolean;
    required: boolean;
    minLength: string;
    maxLength: string;
    expression: string;
    hideExpression: boolean;
    unique: boolean;
    defaultValue: string;
  }[];
  isDialogVisible: boolean;
}

interface From {
  sharedText: string;
  _t: string;
  id: string;
  objectType: string;
  name: {
    name: string;
  };
  actionName: string;
  displayName: string;
}

interface Sources {
  app: App;
}

interface App {
  id: string;
  name: string;
  description: string;
  createdate: string;
}

export class DataMappingAction implements IAction {
  name: string;
  actionProps: IActionProperty[];
  dataMappingProps: Props;
  constructor() {
    this.name = "データマッピング";
    this.actionProps = [];
    this.dataMappingProps = {} as Props;
    this.register();
  }

  async process(
    prop: IActionNode,
    event: any,
    context: IContext
  ): Promise<IActionResult> {
    this.actionProps = prop.actionProps;
    this.dataMappingProps = prop.ActionValue as Props;
    console.log(prop.ActionValue);
    let result = {
      canNext: true,
      result: "",
    } as IActionResult;
    try {
      // createWithNull が有効な場合は、4 番目のパラメーターを true にして doUpdate 関数ブランチを実行します。
      if (this.dataMappingProps.dataMapping.createWithNull === true) {
        await doUpdate(
          this.dataMappingProps.dataMapping.data,
          this.dataMappingProps.sources.app.id,
          context,
          true // キーがない場合、またはキーでターゲットが見つからない場合に、マッピング条件によって新しいレコードを作成するかどうかを決定するために使用されます。
        );
      } else if (
        // キーがないと更新対象を取得できないため、この時点でのみ更新が行われます。 doUpdate 関数の 4 番目のパラメーターは false です。
        this.dataMappingProps.dataMapping.data
          .map((m) => m.isKey)
          .find((isKey) => isKey === true)
      ) {
        await doUpdate(
          this.dataMappingProps.dataMapping.data,
          this.dataMappingProps.sources.app.id,
          context,
          false
        );
      } else {
        await doCreate(
          this.dataMappingProps.dataMapping.data,
          this.dataMappingProps.sources.app.id,
          context
        );
      }
    } catch (error) {
      console.error("DataMappingAction error", error);
      result.canNext = false;
    }
    console.log("dataMappingProps", this.dataMappingProps);

    return result;
  }

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

new DataMappingAction();

const getContextVarByPath = (obj: any, path: string) => {
  return path.split(".").reduce((o, k) => (o || {})[k], obj);
};

interface UpdateRecord {
  id: string;
  record: {
    [key: string]: {
      value: any;
    };
  };
}

const client = new KintoneRestAPIClient();

const doUpdate = async (
  mappingData: Mapping[],
  appId: string,
  context: any,
  needCreate: boolean
) => {
  const targetField = await findUpdateField(mappingData, appId, context);
  console.log(targetField);
  if (targetField.records.length === 0 && needCreate) {
    await doCreate(mappingData, appId, context);
  } else {
    // マッピングデータを単純なオブジェクトに処理し、ソース値が変数の場合は変数を置き換えます。
    const mappingRules = mappingData
      .filter((m) => Object.keys(m.from).length > 0)
      .map((m) => {
        if (m.from.objectType === "variable") {
          return {
            value: getContextVarByPath(context.variables, m.from.name.name),
            code: m.to.fields[0].code,
          };
        } else {
          return {
            value: m.from.sharedText,
            code: m.to.fields[0].code,
          };
        }
      });

    const updateRecords: UpdateRecord[] = targetField.records.map(
      (targetRecord) => {
        const updateRecord: UpdateRecord["record"] = {};

        // マッピング内のルールにヒットしたフィールドのみが更新されます。
        for (const mapping of mappingRules) {
          if (targetRecord[mapping.code]) {
            updateRecord[mapping.code] = {
              value: mapping.value,
            };
          }
        }

        return {
          id: targetRecord.$id.value as string,
          record: updateRecord,
        };
      }
    );

    console.log(updateRecords);

    await client.record.updateRecords({
      app: appId,
      records: updateRecords,
    });
  }
};

const findUpdateField = async (
  mappingData: Mapping[],
  appId: string,
  context: any
) => {
  const queryStr = mappingData
    .filter((m) => m.to.app && m.to.fields && m.to.fields.length > 0 && m.isKey)
    .map((m) => {
      if (m.from.objectType === "variable") {
        return `${m.to.fields[0].code} = "${getContextVarByPath(
          context.variables,
          m.from.name.name
        )}"`;
      } else {
        return `${m.to.fields[0].code}=${m.from.sharedText}`;
      }
    })
    .join("&");
  // 検索条件が空の場合は全レコードを返すため、検索対象が見つからない場合は検索は行われません。
  if (queryStr.length === 0) {
    return {
      records: [],
    };
  } else {
    return await client.record.getRecords({
      app: appId,
      // query: undefined
      query: queryStr,
    });
  }
};

const doCreate = async (
  mappingData: Mapping[],
  appId: string,
  context: any
) => {
  const record = mappingData
    .filter(
      (item) =>
        item.from.objectType === "variable" &&
        item.from.name.name &&
        item.to.app &&
        item.to.fields &&
        item.to.fields.length > 0
    )
    .reduce((accumulator, item) => {
      return {
        ...accumulator,
        [item.to.fields[0].code]: {
          value: getContextVarByPath(context.variables, item.from.name.name),
        },
      };
    }, {});
  if (record && Object.keys(record).length > 0) {
    await kintone.api(kintone.api.url("/k/v1/record.json", true), "POST", {
      app: appId,
      record: record,
    });
  }
};