/*
This is an example snippet - you should consider tailoring it
to your service.

Note: we only handle the first operation here
*/

import { Geometry } from "@turf/helpers";

function fetchGraphQL(operationsDoc: string, operationName: string, variables: Record<string, any>) {
  return fetch("http://10.0.10.101:8081/v1/graphql", {
    method: "POST",
    body: JSON.stringify({
      query: operationsDoc,
      variables,
      operationName,
    }),
  }).then((result) => result.json());
}

const operation = `
    mutation addUserDefineArea($areaColor:String,$geometry:geometry,$areaName:String,$user_id:String) {
      insert_rn_user_define_area(objects: {color: $areaColor, geometry:$geometry, name: $areaName, user_id: $user_id}) {
        returning {
          color
          geometry
          id
          name
          user_id
        }
      }
    }
  `;

export async function addUserDefineArea(areaName: string, areaColor: string, geometry: Geometry) {
  const str = localStorage.getItem("USER_INFO");
  let USER_INFO: any;
  if (str) {
    USER_INFO = JSON.parse(str);
  }
  const result = await fetchGraphQL(operation, "addUserDefineArea", {
    areaName,
    areaColor,
    geometry,
    user_id: USER_INFO.id,
  });
  if (result.errors) {
    throw new Error("系统错误");
  } else {
    return result.data.rn_user_define_area;
  }
}

const queryOperation = `
query queryAllUserDefineArea($user_id:String) {
    rn_user_define_area(where: {user_id: {_eq: $user_id}}) {
        color
        geometry
        id
        name
        user_id
    }
}
  `;

const removeOperation = `
mutation removeUserDefineArea($id:Int) {
    delete_rn_user_define_area(where: {id: {_eq: $id}}) {
      returning {
        id
      }
    }
  }
  
  `;

const updateOperation = `
  mutation updateUserDefineArea($geometry: geometry, $id: Int) {
    update_rn_user_define_area(_set: {geometry: $geometry}, where: {id: {_eq: $id}}) {
      returning {
        id
      }
    }
  }`;

export async function queryAllUserDefineArea() {
  const str = localStorage.getItem("USER_INFO");
  let USER_INFO: any;
  if (str) {
    USER_INFO = JSON.parse(str);
  }
  const result = await fetchGraphQL(queryOperation, "queryAllUserDefineArea", { user_id: USER_INFO.id });
  if (result.errors) {
    throw new Error("系统错误");
  } else {
    return result.data.rn_user_define_area;
  }
}

export async function removeUserDefineArea(id: number) {
  const result = await fetchGraphQL(removeOperation, "removeUserDefineArea", { id: id });
  if (result.errors) {
    throw new Error("系统错误");
  } else {
    return result.data.rn_user_define_area;
  }
}

export async function updateUserDefineArea(id: number, geometry: Geometry) {
  const result = await fetchGraphQL(updateOperation, "updateUserDefineArea", {
    geometry,
    id,
  });
  if (result.errors) {
    throw new Error("系统错误");
  } else {
    return result.data.update_rn_user_define_area;
  }
}