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"use strict";
/** @typedef {import("./index.js").MinimizedResult} MinimizedResult */
/** @typedef {import("source-map").RawSourceMap} RawSourceMap */
/** @typedef {import("./index.js").InternalResult} InternalResult */
/**
* @template T
* @param {import("./index.js").InternalOptions<T>} options
* @returns {Promise<InternalResult>}
*/
const minify = async options => {
const minifyFns = Array.isArray(options.minimizer.implementation) ? options.minimizer.implementation : [options.minimizer.implementation];
/** @type {InternalResult} */
const result = {
outputs: [],
warnings: [],
errors: []
};
let needSourceMap = false;
for (let i = 0; i <= minifyFns.length - 1; i++) {
const minifyFn = minifyFns[i];
const minifyOptions = Array.isArray(options.minimizer.options) ? options.minimizer.options[i] : options.minimizer.options;
const prevResult = result.outputs.length > 0 ? result.outputs[result.outputs.length - 1] : {
code: options.input,
map: options.inputSourceMap
};
const {
code,
map
} = prevResult; // eslint-disable-next-line no-await-in-loop
const minifyResult = await minifyFn({
[options.name]: code
}, map, minifyOptions);
if (typeof minifyResult.code !== "string") {
throw new Error("minimizer function doesn't return the 'code' property or result is not a string value");
}
if (minifyResult.map) {
needSourceMap = true;
}
if (minifyResult.errors) {
result.errors = result.errors.concat(minifyResult.errors);
}
if (minifyResult.warnings) {
result.warnings = result.warnings.concat(minifyResult.warnings);
}
result.outputs.push({
code: minifyResult.code,
map: minifyResult.map
});
}
if (!needSourceMap) {
result.outputs = [result.outputs[result.outputs.length - 1]];
}
return result;
};
/**
* @param {string} options
* @returns {Promise<InternalResult>}
*/
async function transform(options) {
// 'use strict' => this === undefined (Clean Scope)
// Safer for possible security issues, albeit not critical at all here
// eslint-disable-next-line no-new-func, no-param-reassign
const evaluatedOptions = new Function("exports", "require", "module", "__filename", "__dirname", `'use strict'\nreturn ${options}`)(exports, require, module, __filename, __dirname);
return minify(evaluatedOptions);
}
module.exports = {
minify,
transform
};