"use strict";
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.postcss = void 0;
const loader_utils_1 = require("loader-utils");
const path = __importStar(require("path"));
const url = __importStar(require("url"));
function wrapUrl(url) {
    let wrappedUrl;
    const hasSingleQuotes = url.indexOf("'") >= 0;
    if (hasSingleQuotes) {
        wrappedUrl = `"${url}"`;
    }
    else {
        wrappedUrl = `'${url}'`;
    }
    return `url(${wrappedUrl})`;
}
async function resolve(file, base, resolver) {
    try {
        return await resolver('./' + file, base);
    }
    catch {
        return resolver(file, base);
    }
}
exports.postcss = true;
function default_1(options) {
    if (!options) {
        throw new Error('No options were specified to "postcss-cli-resources".');
    }
    const { deployUrl = '', resourcesOutputPath = '', filename, loader, emitFile, extracted, } = options;
    const process = async (inputUrl, context, resourceCache) => {
        // If root-relative, absolute or protocol relative url, leave as is
        if (/^((?:\w+:)?\/\/|data:|chrome:|#)/.test(inputUrl)) {
            return inputUrl;
        }
        if (/^\//.test(inputUrl)) {
            return inputUrl;
        }
        // If starts with a caret, remove and return remainder
        // this supports bypassing asset processing
        if (inputUrl.startsWith('^')) {
            return inputUrl.substr(1);
        }
        const cacheKey = path.resolve(context, inputUrl);
        const cachedUrl = resourceCache.get(cacheKey);
        if (cachedUrl) {
            return cachedUrl;
        }
        if (inputUrl.startsWith('~')) {
            inputUrl = inputUrl.substr(1);
        }
        const { pathname, hash, search } = url.parse(inputUrl.replace(/\\/g, '/'));
        const resolver = (file, base) => new Promise((resolve, reject) => {
            loader.resolve(base, decodeURI(file), (err, result) => {
                if (err) {
                    reject(err);
                    return;
                }
                resolve(result);
            });
        });
        const result = await resolve(pathname, context, resolver);
        return new Promise((resolve, reject) => {
            loader.fs.readFile(result, (err, content) => {
                if (err) {
                    reject(err);
                    return;
                }
                let outputPath = loader_utils_1.interpolateName({ resourcePath: result }, filename(result), {
                    content,
                    context: loader.context || loader.rootContext,
                }).replace(/\\|\//g, '-');
                if (resourcesOutputPath) {
                    outputPath = path.posix.join(resourcesOutputPath, outputPath);
                }
                loader.addDependency(result);
                if (emitFile) {
                    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
                    loader.emitFile(outputPath, content, undefined, { sourceFilename: result });
                }
                let outputUrl = outputPath.replace(/\\/g, '/');
                if (hash || search) {
                    outputUrl = url.format({ pathname: outputUrl, hash, search });
                }
                if (deployUrl && !extracted) {
                    outputUrl = url.resolve(deployUrl, outputUrl);
                }
                resourceCache.set(cacheKey, outputUrl);
                resolve(outputUrl);
            });
        });
    };
    const resourceCache = new Map();
    const processed = Symbol('postcss-cli-resources');
    return {
        postcssPlugin: 'postcss-cli-resources',
        async Declaration(decl) {
            if (!decl.value.includes('url') || processed in decl) {
                return;
            }
            const value = decl.value;
            const urlRegex = /url\(\s*(?:"([^"]+)"|'([^']+)'|(.+?))\s*\)/g;
            const segments = [];
            let match;
            let lastIndex = 0;
            let modified = false;
            // We want to load it relative to the file that imports
            const inputFile = decl.source && decl.source.input.file;
            const context = (inputFile && path.dirname(inputFile)) || loader.context;
            // eslint-disable-next-line no-cond-assign
            while ((match = urlRegex.exec(value))) {
                const originalUrl = match[1] || match[2] || match[3];
                let processedUrl;
                try {
                    processedUrl = await process(originalUrl, context, resourceCache);
                }
                catch (err) {
                    loader.emitError(decl.error(err.message, { word: originalUrl }));
                    continue;
                }
                if (lastIndex < match.index) {
                    segments.push(value.slice(lastIndex, match.index));
                }
                if (!processedUrl || originalUrl === processedUrl) {
                    segments.push(match[0]);
                }
                else {
                    segments.push(wrapUrl(processedUrl));
                    modified = true;
                }
                lastIndex = match.index + match[0].length;
            }
            if (lastIndex < value.length) {
                segments.push(value.slice(lastIndex));
            }
            if (modified) {
                decl.value = segments.join('');
            }
            decl[processed] = true;
        },
    };
}
exports.default = default_1;