text: import Projection from '../../../../src/ol/proj/Projection.js';
  import WMTS, {optionsFromCapabilities} from '../../../../src/ol/source/WMTS.js';
  import WMTSCapabilities from '../../../../src/ol/format/WMTSCapabilities.js';
  import WMTSTileGrid from '../../../../src/ol/tilegrid/WMTS.js';
  import {getBottomLeft, getTopRight} from '../../../../src/ol/extent.js';
  import {get as getProjection} from '../../../../src/ol/proj.js';
  
  describe('ol.source.WMTS', function () {
    describe('when creating options from capabilities', function () {
      const parser = new WMTSCapabilities();
      let capabilities, content;
      before(function (done) {
        afterLoadText('spec/ol/format/wmts/ogcsample.xml', function (xml) {
          try {
            content = xml;
            capabilities = parser.read(xml);
          } catch (e) {
            done(e);
          }
          done();
        });
      });
  
      it('returns null if the layer was not found in the capabilities', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'invalid',
        });
  
        expect(options).to.be(null);
      });
  
      it('passes the crossOrigin option', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857',
          crossOrigin: '',
        });
  
        expect(options.crossOrigin).to.be.eql('');
      });
  
      it('can create KVP options from spec/ol/format/wmts/ogcsample.xml', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'http://www.maps.bob/cgi-bin/MiraMon5_0.cgi?'
        );
  
        expect(options.layer).to.be.eql('BlueMarbleNextGeneration');
  
        expect(options.matrixSet).to.be.eql('google3857');
  
        expect(options.format).to.be.eql('image/jpeg');
  
        expect(options.projection).to.be.a(Projection);
        expect(options.projection).to.be.eql(getProjection('EPSG:3857'));
  
        expect(options.requestEncoding).to.be.eql('KVP');
  
        expect(options.tileGrid).to.be.a(WMTSTileGrid);
  
        expect(options.style).to.be.eql('DarkBlue');
  
        expect(options.dimensions).to.eql({Time: '20110805'});
  
        expect(options.crossOrigin).to.be(undefined);
      });
  
      it('can create REST options from spec/ol/format/wmts/ogcsample.xml', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857',
          requestEncoding: 'REST',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'http://www.example.com/wmts/coastlines/{TileMatrix}/{TileRow}/{TileCol}.png'
        );
  
        expect(options.layer).to.be.eql('BlueMarbleNextGeneration');
  
        expect(options.matrixSet).to.be.eql('google3857');
  
        expect(options.format).to.be.eql('image/png');
  
        expect(options.projection).to.be.a(Projection);
        expect(options.projection).to.be.eql(getProjection('EPSG:3857'));
  
        expect(options.requestEncoding).to.be.eql('REST');
  
        expect(options.tileGrid).to.be.a(WMTSTileGrid);
  
        expect(options.style).to.be.eql('DarkBlue');
  
        expect(options.dimensions).to.eql({Time: '20110805'});
      });
  
      it('can find a MatrixSet by SRS identifier', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          projection: 'EPSG:3857',
          requestEncoding: 'REST',
        });
  
        expect(options.matrixSet).to.be.eql('google3857');
        expect(options.projection.getCode()).to.be.eql('EPSG:3857');
      });
  
      it('can find a MatrixSet by equivalent SRS identifier', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          projection: 'EPSG:900913',
          requestEncoding: 'REST',
        });
  
        expect(options.matrixSet).to.be.eql('google3857');
        expect(options.projection.getCode()).to.be.eql('EPSG:900913');
      });
  
      it('can find the default MatrixSet', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          requestEncoding: 'REST',
        });
  
        expect(options.matrixSet).to.be.eql('BigWorldPixel');
        expect(options.projection.getCode()).to.be.eql(
          'urn:ogc:def:crs:OGC:1.3:CRS84'
        );
      });
  
      it("uses the projection of the default MatrixSet if the config's projection is not supported", function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          projection: new Projection({
            code: 'EPSG:2056',
            units: 'm',
          }),
        });
  
        expect(options.matrixSet).to.be.eql('BigWorldPixel');
        expect(options.projection.getCode()).to.be.eql(
          'urn:ogc:def:crs:OGC:1.3:CRS84'
        );
      });
  
      it('uses extent of tile matrix instead of projection extent', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857subset',
        });
  
        // Since google3857subset defines subset of space defined by the google3857 matrix set:
        // - top left corner: -10000000, 10000000
        // - calculated grid extent: [-10000000, 9999694.25188686, -9999694.25188686, 10000000]
        // then the tile grid extent is only a part of the full projection extent.
  
        const gridExtent = options.tileGrid.getExtent();
        const gridBottomLeft = getBottomLeft(gridExtent);
        const gridTopRight = getTopRight(gridExtent);
        expect(Math.round(gridBottomLeft[0])).to.be.eql(-10000000);
        expect(Math.round(gridBottomLeft[1])).to.be.eql(9999847);
        expect(Math.round(gridTopRight[0])).to.be.eql(-9999847);
        expect(Math.round(gridTopRight[1])).to.be.eql(10000000);
  
        const projExtent = options.projection.getExtent();
        const projBottomLeft = getBottomLeft(projExtent);
        const projTopRight = getTopRight(projExtent);
        expect(Math.round(projBottomLeft[0])).to.be.eql(-20037508);
        expect(Math.round(projBottomLeft[1])).to.be.eql(-20037508);
        expect(Math.round(projTopRight[0])).to.be.eql(20037508);
        expect(Math.round(projTopRight[1])).to.be.eql(20037508);
      });
  
      it("doesn't fail if the GetCap doesn't contains Constraint tags", function () {
        const tmpXml = content.replace(
          /<ows:Constraint[\s\S]*?<\/ows:Constraint>/g,
          ''
        );
        const tmpCapabilities = parser.read(tmpXml);
        expect(
          tmpCapabilities['OperationsMetadata']['GetTile']['DCP']['HTTP'][
            'Get'
          ][0]['Constraint']
        ).to.be(undefined);
        const options = optionsFromCapabilities(tmpCapabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857',
        });
        expect(options.layer).to.be.eql('BlueMarbleNextGeneration');
        expect(options.matrixSet).to.be.eql('google3857');
      });
  
      it("set KVP as default request encoding if the GetCap doesn't contains Constraint and ResourceUrl tags", function () {
        let tmpXml = content.replace(
          /<ows:Constraint[\s\S]*?<\/ows:Constraint>/g,
          ''
        );
        tmpXml = tmpXml.replace(/<ResourceURL[\s\S]*?"\/>/g, '');
  
        const tmpCapabilities = parser.read(tmpXml);
        expect(
          tmpCapabilities['OperationsMetadata']['GetTile']['DCP']['HTTP'][
            'Get'
          ][0]['Constraint']
        ).to.be(undefined);
        expect(tmpCapabilities['Contents']['Layer'][0]['ResourceURL']).to.be(
          undefined
        );
        const options = optionsFromCapabilities(tmpCapabilities, {
          layer: 'BlueMarbleNextGeneration',
          matrixSet: 'google3857',
        });
        expect(options.layer).to.be.eql('BlueMarbleNextGeneration');
        expect(options.matrixSet).to.be.eql('google3857');
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'http://www.maps.bob/cgi-bin/MiraMon5_0.cgi?'
        );
      });
    });
  
    describe('when creating tileUrlFunction', function () {
      const defaultTileGrid = new WMTSTileGrid({
        origin: [-20037508.342789244, 20037508.342789244],
        resolutions: [
          559082264.029 * 0.28e-3,
          279541132.015 * 0.28e-3,
          139770566.007 * 0.28e-3,
        ],
        matrixIds: [0, 1, 2],
      });
  
      it('can replace lowercase REST parameters', function () {
        const source = new WMTS({
          layer: 'layer',
          style: 'default',
          urls: [
            'http://host/{layer}/{style}/{tilematrixset}/{TileMatrix}/{TileCol}/{TileRow}.jpg',
          ],
          matrixSet: 'EPSG:3857',
          requestEncoding: 'REST',
          tileGrid: defaultTileGrid,
        });
  
        const projection = getProjection('EPSG:3857');
        const url = source.tileUrlFunction(
          source.getTileCoordForTileUrlFunction([1, 1, 1]),
          1,
          projection
        );
        expect(url).to.be.eql('http://host/layer/default/EPSG:3857/1/1/1.jpg');
      });
  
      it('can replace camelcase REST parameters', function () {
        const source = new WMTS({
          layer: 'layer',
          style: 'default',
          urls: [
            'http://host/{Layer}/{Style}/{tilematrixset}/{TileMatrix}/{TileCol}/{TileRow}.jpg',
          ],
          matrixSet: 'EPSG:3857',
          requestEncoding: 'REST',
          tileGrid: defaultTileGrid,
        });
  
        const projection = getProjection('EPSG:3857');
        const url = source.tileUrlFunction(
          source.getTileCoordForTileUrlFunction([1, 1, 1]),
          1,
          projection
        );
        expect(url).to.be.eql('http://host/layer/default/EPSG:3857/1/1/1.jpg');
      });
  
      it('can replace dimensions', function () {
        const source = new WMTS({
          layer: 'layer',
          style: 'default',
          dimensions: {'Time': 42},
          urls: [
            'http://host/{Layer}/{Style}/{Time}/{tilematrixset}/{TileMatrix}/{TileCol}/{TileRow}.jpg',
          ],
          matrixSet: 'EPSG:3857',
          requestEncoding: 'REST',
          tileGrid: defaultTileGrid,
        });
  
        const projection = getProjection('EPSG:3857');
        const url = source.tileUrlFunction(
          source.getTileCoordForTileUrlFunction([1, 1, 1]),
          1,
          projection
        );
        expect(url).to.be.eql('http://host/layer/default/42/EPSG:3857/1/1/1.jpg');
      });
    });
  
    describe('when creating options from Esri capabilities', function () {
      const parser = new WMTSCapabilities();
      let capabilities;
      before(function (done) {
        afterLoadText('spec/ol/format/wmts/arcgis.xml', function (xml) {
          try {
            capabilities = parser.read(xml);
          } catch (e) {
            done(e);
          }
          done();
        });
      });
  
      it('can create KVP options from spec/ol/format/wmts/arcgis.xml', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'Demographics_USA_Population_Density',
          requestEncoding: 'KVP',
          matrixSet: 'default028mm',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'https://services.arcgisonline.com/arcgis/rest/services/' +
            'Demographics/USA_Population_Density/MapServer/WMTS?'
        );
      });
  
      it('can create REST options from spec/ol/format/wmts/arcgis.xml', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'Demographics_USA_Population_Density',
          matrixSet: 'default028mm',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'https://services.arcgisonline.com/arcgis/rest/services/' +
            'Demographics/USA_Population_Density/MapServer/WMTS/' +
            'tile/1.0.0/Demographics_USA_Population_Density/' +
            '{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png'
        );
      });
    });
  
    describe('when creating options from wgs84 capabilities', function () {
      const parser = new WMTSCapabilities();
      let capabilities;
      before(function (done) {
        afterLoadText(
          'spec/ol/format/wmts/capabilities_wgs84.xml',
          function (xml) {
            try {
              capabilities = parser.read(xml);
            } catch (e) {
              done(e);
            }
            done();
          }
        );
      });
  
      it('returns correct bounding box', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'baselayer',
          matrixSet: 'inspire_quad',
          requestEncoding: 'REST',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'https://example.com/wmts/baselayer/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}.png'
        );
  
        expect(options.layer).to.be.eql('baselayer');
  
        expect(options.matrixSet).to.be.eql('inspire_quad');
  
        expect(options.format).to.be.eql('image/png');
  
        expect(options.projection).to.be.a(Projection);
        expect(options.projection).to.be.eql(getProjection('EPSG:4326'));
  
        expect(options.requestEncoding).to.be.eql('REST');
  
        expect(options.tileGrid).to.be.a(WMTSTileGrid);
        expect(options.style).to.be.eql('default');
  
        const extent = options.tileGrid.getExtent();
  
        // compare with delta, due to rounding not the exact bounding box is returned...
        const expectDelta = (value, expected) =>
          expect(Math.abs(value - expected)).to.below(1e-10);
  
        expectDelta(extent[0], -180);
        expectDelta(extent[1], -90);
        expectDelta(extent[2], 180);
        expectDelta(extent[3], 90);
      });
    });
  
    describe('when creating options from capabilities with TileMatrixSetLink', function () {
      const parser = new WMTSCapabilities();
      let capabilities;
      before(function (done) {
        afterLoadText(
          'spec/ol/format/wmts/capabilities_with_tilematrixsetlink.xml',
          function (xml) {
            try {
              capabilities = parser.read(xml);
            } catch (e) {
              done(e);
            }
            done();
          }
        );
      });
  
      it('returns correct bounding box for a layer', function () {
        const options = optionsFromCapabilities(capabilities, {
          layer: 'mean_atlas_land',
          matrixSet: 'inspire_quad',
          requestEncoding: 'REST',
        });
  
        expect(options.urls).to.be.an('array');
        expect(options.urls).to.have.length(1);
        expect(options.urls[0]).to.be.eql(
          'https://example.com/wmts/mean_atlas_land/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}.png'
        );
  
        expect(options.layer).to.be.eql('mean_atlas_land');
  
        expect(options.matrixSet).to.be.eql('inspire_quad');
  
        expect(options.format).to.be.eql('image/png');
  
        expect(options.projection).to.be.a(Projection);
        expect(options.projection).to.be.eql(getProjection('EPSG:4326'));
  
        expect(options.requestEncoding).to.be.eql('REST');
  
        expect(options.tileGrid).to.be.a(WMTSTileGrid);
        expect(options.style).to.be.eql('default');
  
        const extent = options.tileGrid.getExtent();
  
        // calculate with of one tile, this will be used as tolerance for result extent
        const tile_width =
          ((68247.34668319306 * 0.00028) /
            getProjection('EPSG:4326').getMetersPerUnit()) *
          256;
  
        // compare with delta, due to rounding not the exact bounding box is returned...
        const expectDelta = (value, expected) =>
          expect(Math.abs(value - expected)).to.below(tile_width + 1e-10);
  
        expectDelta(extent[0], -36);
        expectDelta(extent[1], 15);
        expectDelta(extent[2], 43);
        expectDelta(extent[3], 90);
      });
    });
  
    describe('#setUrls()', function () {
      it('sets the URL for the source', function () {
        const source = new WMTS({});
  
        const urls = [
          'https://a.example.com/',
          'https://b.example.com/',
          'https://c.example.com/',
        ];
        source.setUrls(urls);
  
        expect(source.getUrls()).to.eql(urls);
      });
  
      it('updates the key for the source', function () {
        const source = new WMTS({});
  
        const urls = [
          'https://a.example.com/',
          'https://b.example.com/',
          'https://c.example.com/',
        ];
        source.setUrls(urls);
  
        expect(source.getKey()).to.eql(urls.join('\n'));
      });
  
      it('generates the correct tileUrlFunction during application of setUrl()', function () {
        const projection = getProjection('EPSG:3857');
        const source = new WMTS({
          projection: projection,
          requestEncoding: 'REST',
          urls: [
            'http://1.example.com/{TileMatrix}/{TileRow}/{TileCol}.jpeg',
            'http://2.example.com/{TileMatrix}/{TileRow}/{TileCol}.jpeg',
          ],
          tileGrid: new WMTSTileGrid({
            matrixIds: [0, 1, 2, 3, 4, 5, 6, 7],
            origin: [2690000, 1285000],
            resolutions: [4000, 3750, 3500, 3250, 3000, 2750, 2500, 2250],
          }),
        });
  
        const urls = [
          'https://a.example.com/{TileMatrix}/{TileRow}/{TileCol}.jpg',
          'https://b.example.com/{TileMatrix}/{TileRow}/{TileCol}.jpg',
        ];
        source.setUrls(urls);
        const tileUrl1 = source.tileUrlFunction([2, 9, -5], 1, projection);
        expect(tileUrl1).to.match(/https\:\/\/[ab]\.example\.com\/2\/-5\/9\.jpg/);
      });
    });
  
    describe('url option', function () {
      it('expands url template', function () {
        const tileSource = new WMTS({
          url: '{1-3}',
        });
  
        const urls = tileSource.getUrls();
        expect(urls).to.eql(['1', '2', '3']);
      });
    });
  
    describe('#getUrls', function () {
      let sourceOptions;
      let source;
  
      beforeEach(function () {
        sourceOptions = {
          layer: 'layer',
          style: 'default',
          matrixSet: 'foo',
          requestEncoding: 'REST',
          tileGrid: new WMTSTileGrid({
            origin: [0, 0],
            resolutions: [],
            matrixIds: [],
          }),
        };
      });
  
      describe('using a "url" option', function () {
        beforeEach(function () {
          sourceOptions.url = 'some_wmts_url';
          source = new WMTS(sourceOptions);
        });
  
        it('returns the WMTS URLs', function () {
          const urls = source.getUrls();
          expect(urls).to.be.eql(['some_wmts_url']);
        });
      });
  
      describe('using a "urls" option', function () {
        beforeEach(function () {
          sourceOptions.urls = ['some_wmts_url1', 'some_wmts_url2'];
          source = new WMTS(sourceOptions);
        });
  
        it('returns the WMTS URLs', function () {
          const urls = source.getUrls();
          expect(urls).to.be.eql(['some_wmts_url1', 'some_wmts_url2']);
        });
      });
    });
  
    describe('#getRequestEncoding', function () {
      let source;
  
      beforeEach(function () {
        source = new WMTS({
          layer: 'layer',
          style: 'default',
          matrixSet: 'foo',
          requestEncoding: 'REST',
          tileGrid: new WMTSTileGrid({
            origin: [0, 0],
            resolutions: [],
            matrixIds: [],
          }),
        });
      });
  
      it('returns the request encoding', function () {
        const requestEncoding = source.getRequestEncoding();
        expect(requestEncoding).to.be.eql('REST');
      });
    });
  });
  