{
  "version": 3,
  "sources": ["../../src/middlewares/preloading.ts"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { addQueryArgs, getQueryArgs, normalizePath } from '@wordpress/url';\n\n/**\n * Internal dependencies\n */\nimport type { APIFetchMiddleware } from '../types';\n\n/**\n * @param preloadedData\n * @return Preloading middleware.\n */\nfunction createPreloadingMiddleware(\n\tpreloadedData: Record< string, any >\n): APIFetchMiddleware {\n\tconst cache = Object.fromEntries(\n\t\tObject.entries( preloadedData ).map( ( [ path, data ] ) => [\n\t\t\tnormalizePath( path ),\n\t\t\tdata,\n\t\t] )\n\t);\n\n\treturn ( options, next ) => {\n\t\tconst { parse = true } = options;\n\t\tlet rawPath = options.path;\n\t\tif ( ! rawPath && options.url ) {\n\t\t\tconst { rest_route: pathFromQuery, ...queryArgs } = getQueryArgs(\n\t\t\t\toptions.url\n\t\t\t);\n\n\t\t\tif ( typeof pathFromQuery === 'string' ) {\n\t\t\t\trawPath = addQueryArgs( pathFromQuery, queryArgs );\n\t\t\t}\n\t\t}\n\n\t\tif ( typeof rawPath !== 'string' ) {\n\t\t\treturn next( options );\n\t\t}\n\n\t\tconst method = options.method || 'GET';\n\t\tconst path = normalizePath( rawPath );\n\n\t\tif ( 'GET' === method && cache[ path ] ) {\n\t\t\tconst cacheData = cache[ path ];\n\n\t\t\t// Unsetting the cache key ensures that the data is only used a single time.\n\t\t\tdelete cache[ path ];\n\n\t\t\treturn prepareResponse( cacheData, !! parse );\n\t\t} else if (\n\t\t\t'OPTIONS' === method &&\n\t\t\tcache[ method ] &&\n\t\t\tcache[ method ][ path ]\n\t\t) {\n\t\t\tconst cacheData = cache[ method ][ path ];\n\n\t\t\t// Unsetting the cache key ensures that the data is only used a single time.\n\t\t\tdelete cache[ method ][ path ];\n\n\t\t\treturn prepareResponse( cacheData, !! parse );\n\t\t}\n\n\t\treturn next( options );\n\t};\n}\n\n/**\n * This is a helper function that sends a success response.\n *\n * @param responseData\n * @param parse\n * @return Promise with the response.\n */\nfunction prepareResponse(\n\tresponseData: Record< string, any >,\n\tparse: boolean\n) {\n\tif ( parse ) {\n\t\treturn Promise.resolve( responseData.body );\n\t}\n\n\ttry {\n\t\treturn Promise.resolve(\n\t\t\tnew window.Response( JSON.stringify( responseData.body ), {\n\t\t\t\tstatus: 200,\n\t\t\t\tstatusText: 'OK',\n\t\t\t\theaders: responseData.headers,\n\t\t\t} )\n\t\t);\n\t} catch {\n\t\t// See: https://github.com/WordPress/gutenberg/issues/67358#issuecomment-2621163926.\n\t\tObject.entries(\n\t\t\tresponseData.headers as Record< string, string >\n\t\t).forEach( ( [ key, value ] ) => {\n\t\t\tif ( key.toLowerCase() === 'link' ) {\n\t\t\t\tresponseData.headers[ key ] = value.replace(\n\t\t\t\t\t/<([^>]+)>/,\n\t\t\t\t\t( _, url ) => `<${ encodeURI( url ) }>`\n\t\t\t\t);\n\t\t\t}\n\t\t} );\n\n\t\treturn Promise.resolve(\n\t\t\tparse\n\t\t\t\t? responseData.body\n\t\t\t\t: new window.Response( JSON.stringify( responseData.body ), {\n\t\t\t\t\t\tstatus: 200,\n\t\t\t\t\t\tstatusText: 'OK',\n\t\t\t\t\t\theaders: responseData.headers,\n\t\t\t\t  } )\n\t\t);\n\t}\n}\n\nexport default createPreloadingMiddleware;\n"],
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