import { http, HttpResponse } from "msw";
import { configure, reaction, runInAction } from "mobx";
import Cartographic from "terriajs-cesium/Source/Core/Cartographic";
import GeoJsonDataSource from "terriajs-cesium/Source/DataSources/GeoJsonDataSource";
import isDefined from "../../../../lib/Core/isDefined";
import Result from "../../../../lib/Core/Result";
import TerriaError from "../../../../lib/Core/TerriaError";
import MappableMixin from "../../../../lib/ModelMixins/MappableMixin";
import CsvCatalogItem from "../../../../lib/Models/Catalog/CatalogItems/CsvCatalogItem";
import WebProcessingServiceCatalogFunction from "../../../../lib/Models/Catalog/Ows/WebProcessingServiceCatalogFunction";
import WebProcessingServiceCatalogFunctionJob from "../../../../lib/Models/Catalog/Ows/WebProcessingServiceCatalogFunctionJob";
import CommonStrata from "../../../../lib/Models/Definition/CommonStrata";
import DateTimeParameter from "../../../../lib/Models/FunctionParameters/DateTimeParameter";
import EnumerationParameter from "../../../../lib/Models/FunctionParameters/EnumerationParameter";
import GeoJsonParameter from "../../../../lib/Models/FunctionParameters/GeoJsonParameter";
import LineParameter from "../../../../lib/Models/FunctionParameters/LineParameter";
import PointParameter from "../../../../lib/Models/FunctionParameters/PointParameter";
import PolygonParameter from "../../../../lib/Models/FunctionParameters/PolygonParameter";
import RectangleParameter from "../../../../lib/Models/FunctionParameters/RectangleParameter";
import StringParameter from "../../../../lib/Models/FunctionParameters/StringParameter";
import Terria from "../../../../lib/Models/Terria";
import { worker } from "../../../mocks/browser";
import "../../../SpecHelpers";

import regionMapping from "../../../../wwwroot/data/regionMapping.json";

configure({
  enforceActions: "observed",
  computedRequiresReaction: true
});

import processDescriptionsXml from "../../../../wwwroot/test/WPS/ProcessDescriptions.xml";
import executeResponseXml from "../../../../wwwroot/test/WPS/ExecuteResponse.xml";
import failedExecuteResponseXml from "../../../../wwwroot/test/WPS/FailedExecuteResponse.xml";
import pendingExecuteResponseXml from "../../../../wwwroot/test/WPS/PendingExecuteResponse.xml";

describe("WebProcessingServiceCatalogFunction", function () {
  let wps: WebProcessingServiceCatalogFunction;

  beforeEach(function () {
    const terria = initTerria();
    wps = new WebProcessingServiceCatalogFunction("test", terria);
    runInAction(() => {
      wps.setTrait("definition", "url", "http://example.com/wps");
      wps.setTrait("definition", "identifier", "someId");
    });
    worker.use(
      http.get("http://example.com/wps", ({ request }) => {
        const url = new URL(request.url);
        const wpsRequest = url.searchParams.get("request");
        if (wpsRequest === "DescribeProcess") {
          return new HttpResponse(processDescriptionsXml, {
            headers: { "Content-Type": "text/xml" }
          });
        }
        if (wpsRequest === "Execute") {
          return new HttpResponse(executeResponseXml, {
            headers: { "Content-Type": "text/xml" }
          });
        }
        throw new Error(`Unexpected WPS GET request: ${url.search}`);
      }),
      http.post("http://example.com/wps", ({ request }) => {
        const url = new URL(request.url);
        if (url.searchParams.get("request") !== "Execute")
          throw new Error(`Unexpected WPS POST request: ${url.search}`);
        return new HttpResponse(executeResponseXml, {
          headers: { "Content-Type": "text/xml" }
        });
      }),
      http.get("*/build/TerriaJS/data/regionMapping.json", () =>
        HttpResponse.json(regionMapping)
      )
    );
  });

  it("has a type & typeName", function () {
    expect(WebProcessingServiceCatalogFunction.type).toBe("wps");
    expect(wps.typeName).toBe("Web Processing Service (WPS)");
  });

  describe("when loading", function () {
    it("should correctly query the DescribeProcess endpoint", async function () {
      await wps.loadMetadata();
      expect(wps.functionParameters.length).toBe(2);
      expect(wps.functionParameters.map(({ type }) => type)).toEqual([
        "string",
        "geojson"
      ]);
    });
  });

  describe("when invoked", function () {
    let dispose: () => void;
    let disposeMapItems: () => void;
    let job: WebProcessingServiceCatalogFunctionJob;

    beforeEach(async function () {
      dispose = reaction(
        () => wps.parameters,
        () => {}
      );
      await wps.loadMetadata();
      runInAction(() => {
        const param = wps.functionParameters.find(
          (p) => p.type === "geojson"
        ) as GeoJsonParameter;
        param.subtype = GeoJsonParameter.PointType;
        param.setValue(CommonStrata.user, {
          longitude: 2.5302435855103993,
          latitude: -0.6592349301568685,
          height: -1196.8235676901866
        });
      });
      job = (await wps.submitJob()) as WebProcessingServiceCatalogFunctionJob;

      disposeMapItems = reaction(
        () => job.mapItems,
        () => {}
      );
    });

    afterEach(function () {
      dispose();
      disposeMapItems();
    });

    it("makes a POST request to the Execute endpoint", function () {
      expect(job.identifier).toBe("someId");
      // expect(job.).toMatch(/geometry=/);
      expect(job.jobStatus).toBe("finished");
    });

    it("makes a GET request to the Execute endpoint when `executeWithHttpGet` is true", function () {
      runInAction(() => wps.setTrait("definition", "executeWithHttpGet", true));

      expect(job.identifier).toBe("someId");
      // expect(job.).toMatch(/geometry=/);
      expect(job.wpsResponse).toBeDefined();
      expect(job.jobStatus).toBe("finished");
    });

    it("adds a ResultPendingCatalogItem to the workbench", function () {
      expect(job.inWorkbench).toBeTruthy();
    });
  });

  describe("on success", function () {
    let job: WebProcessingServiceCatalogFunctionJob;
    beforeEach(async function () {
      let dispose: any;
      job = (await wps.submitJob()) as WebProcessingServiceCatalogFunctionJob;

      await new Promise<void>((resolve) => {
        dispose = reaction(
          () => job.downloadedResults,
          () => {
            if (job.downloadedResults) resolve();
          },
          { fireImmediately: true }
        );
      });

      dispose();
    });

    it("adds a WebProcessingServiceCatalogFunctionJob to workbench", function () {
      expect(job.inWorkbench).toBeTruthy();
    });

    it("adds result to workbench", function () {
      expect(job.results.length).toBe(2);
      expect(MappableMixin.isMixedInto(job.results[0])).toBeTruthy();
      expect(MappableMixin.isMixedInto(job.results[1])).toBeTruthy();
      expect(job.results[0].inWorkbench).toBeTruthy();
      expect(job.results[1].inWorkbench).toBeTruthy();
    });

    it("adds a new catalog member for the output", function () {
      expect(job.results[0].type).toBe(CsvCatalogItem.type);
    });

    it("adds a short report", function () {
      expect(job.shortReportSections[0].content).toBe(
        "Chart Vegetation Cover generated."
      );
    });
    it("returns mapItems", function () {
      expect(job.mapItems.length).toBe(1);
      expect(job.mapItems[0]).toEqual(jasmine.any(GeoJsonDataSource));
    });

    it("defines a rectangle", function () {
      expect(job.rectangle).toBeDefined();
    });
  });

  describe("otherwise if `statusLocation` is set", function () {
    it("polls the statusLocation for the result", async function () {
      worker.use(
        http.post(
          "http://example.com/wps",
          () =>
            new HttpResponse(pendingExecuteResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        ),
        http.get(
          "http://example.com/ows",
          () =>
            new HttpResponse(executeResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        )
      );

      const job = await wps.submitJob();

      const dispose1 = reaction(
        () => job.mapItems,
        () => {}
      );

      expect(job.jobStatus).toBe("running");

      let dispose2: any;

      // Wait for job to finish polling, then check if finished
      await new Promise<void>((resolve) => {
        dispose2 = reaction(
          () => job.refreshEnabled,
          () => {
            if (!job.refreshEnabled) {
              expect(job.jobStatus).toBe("finished");
              return job.downloadResults().then(() => resolve());
            }
          },
          { fireImmediately: true }
        );
      });

      dispose1();
      dispose2();
    });

    it("stops polling if pendingItem is removed from the workbench", async function () {
      spyOn(wps.terria.workbench, "add").and.callFake(() =>
        Promise.resolve(Result.none())
      ); // do nothing
      worker.use(
        http.post(
          "http://example.com/wps",
          () =>
            new HttpResponse(pendingExecuteResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        )
      );

      // Note: we don't stubRequest "http://example.com/ows?check_status/123" here - so an error will be thrown if the job polls for a result

      const job = await wps.submitJob();
      expect(job.jobStatus).toBe("running");
    });
  });

  describe("on failure", function () {
    let dispose: () => void;

    beforeEach(async function () {
      dispose = reaction(
        () => wps.parameters,
        () => {}
      );
      await wps.loadMetadata();
      runInAction(() => {
        const param = wps.functionParameters.find(
          (p) => p.type === "geojson"
        ) as GeoJsonParameter;
        param.subtype = GeoJsonParameter.PointType;
        param.setValue(CommonStrata.user, {
          longitude: 2.5302435855103993,
          latitude: -0.6592349301568685,
          height: -1196.8235676901866
        });
      });
    });

    afterEach(function () {
      dispose();
    });

    it("marks the ResultPendingCatalogItem as failed - for polling results", async function () {
      worker.use(
        http.post(
          "http://example.com/wps",
          () =>
            new HttpResponse(pendingExecuteResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        ),
        http.get(
          "http://example.com/ows",
          () =>
            new HttpResponse(failedExecuteResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        )
      );

      const job =
        (await wps.submitJob()) as WebProcessingServiceCatalogFunctionJob;

      const dispose1 = reaction(
        () => job.mapItems,
        () => {}
      );

      let dispose2: any;

      // Wait for job to finish polling, then check if failed
      await new Promise<void>((resolve) => {
        dispose2 = reaction(
          () => job.refreshEnabled,
          () => {
            if (!job.refreshEnabled) {
              expect(job.jobStatus).toBe("error");
              expect(job.shortReport).toBeDefined();
              expect(job.shortReport).toMatch(/invocation failed/i);

              resolve();
            }
          },
          { fireImmediately: true }
        );
      });

      dispose1();
      dispose2();
    });

    it("marks the ResultPendingCatalogItem as failed", async function () {
      worker.use(
        http.post(
          "http://example.com/wps",
          () =>
            new HttpResponse(failedExecuteResponseXml, {
              headers: { "Content-Type": "text/xml" }
            })
        )
      );

      try {
        const job = await wps.submitJob();
        expect(job).toBeUndefined();
      } catch (error: any) {
        expect(error).toBeDefined();
        expect(error instanceof TerriaError).toBeTruthy();
        expect(error.message).toBe(
          "One of the identifiers passed does not match with any of the processes offered by this server"
        );
      }
    });
  });

  describe("convertInputToParameter", function () {
    it("works for a simple input", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry_id",
        Title: "Geometry ID",
        Abstract: "ID of the input",
        LiteralData: { AnyValue: {} },
        minOccurs: 1
      });
      expect(parameter).toBeDefined();
      if (isDefined(parameter)) {
        expect(parameter.id).toBe("geometry_id");
        expect(parameter.name).toBe("Geometry ID");
        expect(parameter.description).toBe("ID of the input");
        expect(parameter.isRequired).toBe(true);
      }
    });

    it("converts LiteralData input with `AllowedValues` to EnumerationParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry_id",
        LiteralData: { AllowedValues: { Value: ["Point", "Polygon"] } }
      });
      expect(parameter).toEqual(jasmine.any(EnumerationParameter));
      if (parameter) {
        const enumParameter = parameter as EnumerationParameter;
        expect(enumParameter.options).toEqual([
          { id: "Point" },
          { id: "Polygon" }
        ]);
      }
    });

    it("converts LiteralData input with `AllowedValue` to EnumerationParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry_id",
        LiteralData: { AllowedValue: { Value: "Point" } }
      });
      expect(parameter).toEqual(jasmine.any(EnumerationParameter));
      if (parameter) {
        const enumParameter = parameter as EnumerationParameter;
        expect(enumParameter.options).toEqual([{ id: "Point" }]);
      }
    });

    it("converts LiteralData input with `AnyValue` to StringParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry_id",
        LiteralData: { AnyValue: {} }
      });
      expect(parameter).toEqual(jasmine.any(StringParameter));
    });

    it("converts ComplexData input with datetime schema to DateTimeParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        ComplexData: {
          Default: {
            Format: { Schema: "http://www.w3.org/TR/xmlschema-2/#dateTime" }
          }
        }
      });
      expect(parameter).toEqual(jasmine.any(DateTimeParameter));
    });

    it("converts ComplexData input with point schema to PointParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        ComplexData: {
          Default: {
            Format: { Schema: "http://geojson.org/geojson-spec.html#point" }
          }
        }
      });
      expect(parameter).toEqual(jasmine.any(PointParameter));
    });

    it("converts ComplexData input with line schema to LineParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        ComplexData: {
          Default: {
            Format: {
              Schema: "http://geojson.org/geojson-spec.html#linestring"
            }
          }
        }
      });
      expect(parameter).toEqual(jasmine.any(LineParameter));
    });

    it("converts ComplexData input with polygon schema to PolygonParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        ComplexData: {
          Default: {
            Format: { Schema: "http://geojson.org/geojson-spec.html#polygon" }
          }
        }
      });
      expect(parameter).toEqual(jasmine.any(PolygonParameter));
    });

    it("converts ComplexData input with GeoJson schema to GeoJsonParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        ComplexData: {
          Default: {
            Format: { Schema: "http://geojson.org/geojson-spec.html#geojson" }
          }
        }
      });
      expect(parameter).toEqual(jasmine.any(GeoJsonParameter));
    });

    it("converts input with BoundingBoxData to RectangleParameter", function () {
      const parameter = wps.convertInputToParameter(wps, {
        Identifier: "geometry",
        BoundingBoxData: {
          Default: { CRS: "crs84" }
        }
      });
      expect(parameter).toEqual(jasmine.any(RectangleParameter));
    });
  });

  it("can convert a parameter to data input", async function () {
    const parameter = new PointParameter(wps, {
      id: "foo"
    });
    parameter.setValue(CommonStrata.user, Cartographic.ZERO);
    const input = await wps.convertParameterToInput(parameter);
    expect(input).toEqual({
      inputIdentifier: "foo",
      inputValue:
        '{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Point","coordinates":[0,0,0]},"properties":{}}]}',
      inputType: "ComplexData"
    });
  });
});

function initTerria() {
  const terria = new Terria({ baseUrl: "./" });

  return terria;
}