import { v4 as uuidv4 } from "uuid";
import { describe, it, expect } from "vitest";

import { getUrlSearchParamsToForward } from "./getUrlSearchParamsToForward";

function fromEntriesWithDuplicateKeys(entries: IterableIterator<[string, string]> | null) {
  const result: Record<string, string | string[]> = {};

  if (entries === null) {
    return result;
  }

  // Consider setting atleast ES2015 as target
  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
  // @ts-ignore
  for (const [key, value] of entries) {
    if (result.hasOwnProperty(key)) {
      let currentValue = result[key];
      if (!Array.isArray(currentValue)) {
        currentValue = [currentValue];
      }
      currentValue.push(value);
      result[key] = currentValue;
    } else {
      result[key] = value;
    }
  }
  return result;
}

describe("getUrlSearchParamsToForward", () => {
  it("should build query params from response correctly when identifier is present in fields", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "value1", label: "Field 1" },
      [field2Id]: { value: ["option1", "option2"], label: "Field 2" },
    };

    const fields = [
      { id: field1Id, identifier: "f1", type: "text", label: "Field 1" },
      {
        id: field2Id,
        identifier: "f2",
        label: "Field 2",
        type: "multiselect",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
        ],
      },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");
    const expectedParams = {
      f1: "value1",
      f2: ["Option 1", "Option 2"],
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should build query params from response correctly when identifier is not present in fields. Should fallback to label", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "value1" },
      [field2Id]: { value: "value2" },
    };

    const fields = [
      { id: field1Id, label: "Field 1", type: "text" },
      { id: field2Id, label: "Field 2", type: "text" },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");

    const expectedParams = {
      "Field 1": "value1",
      "Field 2": "value2",
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should handle select fields correctly when options have id set", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "Option 1" },
      [field2Id]: { value: ["Option 1", "Option 2"] },
    };

    const fields = [
      {
        id: field1Id,
        label: "Field 1",
        type: "select",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
        ],
      },
      {
        id: field2Id,
        label: "Field 2",
        type: "multiselect",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
          { id: "option3", label: "Option 3" },
        ],
      },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");

    const expectedParams = {
      "Field 1": "Option 1",
      "Field 2": ["Option 1", "Option 2"],
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should handle select fields correctly when options have no id set(Legacy options)", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "Option 1" },
      [field2Id]: { value: ["Option 1", "Option 2"] },
    };

    const fields = [
      {
        id: field1Id,
        label: "Field 1",
        type: "select",
        options: [
          { id: null, label: "Option 1" },
          { id: null, label: "Option 2" },
        ],
      },
      {
        id: field2Id,
        label: "Field 2",
        type: "multiselect",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
          { id: "option3", label: "Option 3" },
        ],
      },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");

    const expectedParams = {
      "Field 1": "Option 1",
      "Field 2": ["Option 1", "Option 2"],
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should handle number values correctly", () => {
    const field1Id = uuidv4();
    const response = {
      [field1Id]: { value: 123 },
    };

    const fields = [{ id: field1Id, label: "Field 1", type: "number" }];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");
    const expectedParams = {
      "Field 1": "123",
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
    };

    const result = getUrlSearchParamsToForward({
      formResponse: response,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should add cal.skipContactOwner when attributeRoutingConfig.skipContactOwner is true", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "value1", label: "Field 1" },
      [field2Id]: { value: ["option1", "option2"], label: "Field 2" },
    };

    const fields = [
      { id: field1Id, identifier: "f1", type: "text", label: "Field 1" },
      {
        id: field2Id,
        identifier: "f2",
        label: "Field 2",
        type: "multiselect",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
        ],
      },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");
    const expectedParams = {
      f1: "value1",
      f2: ["Option 1", "Option 2"],
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
      "cal.skipContactOwner": "true",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: null,
      formResponseId: 1,
      attributeRoutingConfig: {
        skipContactOwner: true,
      },
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });

  it("should add cal.routedTeamMemberIds to query params", () => {
    const field1Id = uuidv4();
    const field2Id = uuidv4();
    const formResponse = {
      [field1Id]: { value: "value1", label: "Field 1" },
      [field2Id]: { value: ["option1", "option2"], label: "Field 2" },
    };

    const fields = [
      { id: field1Id, identifier: "f1", type: "text", label: "Field 1" },
      {
        id: field2Id,
        identifier: "f2",
        label: "Field 2",
        type: "multiselect",
        options: [
          { id: "option1", label: "Option 1" },
          { id: "option2", label: "Option 2" },
        ],
      },
    ];

    const searchParams = new URLSearchParams("?query1=value1&query2=value2");
    const expectedParams = {
      f1: "value1",
      f2: ["Option 1", "Option 2"],
      query1: "value1",
      query2: "value2",
      "cal.routingFormResponseId": "1",
      "cal.routedTeamMemberIds": "1,2",
    };

    const result = getUrlSearchParamsToForward({
      formResponse,
      fields,
      searchParams,
      teamMembersMatchingAttributeLogic: [1, 2],
      formResponseId: 1,
      attributeRoutingConfig: null,
    });
    expect(fromEntriesWithDuplicateKeys(result.entries())).toEqual(expectedParams);
  });
});