/**
 * Generate additional configuration files when used for packaging. The file can be configured with some global variables, so that it can be changed directly externally without repackaging
 */
import fs, { writeFileSync } from 'fs-extra'
import colors from 'picocolors'
import { GLOB_CONFIG_FILE_NAME, OUTPUT_DIR } from '../constant'

import { getEnvConfig, getRootPath } from '../utils'
import { getConfigFileName } from '../getConfigFileName'

import pkg from '../../package.json'

interface CreateConfigParams {
    configName: string
    config: any
    configFileName?: string
}

function createConfig(params: CreateConfigParams) {
    const { configName, config, configFileName } = params
    try {
        const windowConf = `window.${configName}`
        // Ensure that the variable will not be modified
        let configStr = `${windowConf}=${JSON.stringify(config)};`
        configStr += `
       Object.freeze(${windowConf});
       Object.defineProperty(window, "${configName}", {
         configurable: false,
         writable: false,
       });
     `.replace(/\s/g, '')

        fs.mkdirp(getRootPath(OUTPUT_DIR))
        writeFileSync(getRootPath(`${OUTPUT_DIR}/${configFileName}`), configStr)

        console.log(`${colors.cyan(`✨ [${pkg.name}]`)} - configuration file is build successfully:`)
        console.log(`${colors.gray(`${OUTPUT_DIR}/${colors.green(configFileName)}`)}\n`)
    } catch (error) {
        console.log(colors.red(`configuration file configuration file failed to package:\n${error}`))
    }
}

export function runBuildConfig() {
    const config = getEnvConfig()
    const configFileName = getConfigFileName(config)
    createConfig({ config, configName: configFileName, configFileName: GLOB_CONFIG_FILE_NAME })
}
