'use strict'

fs = require 'fs-extra'
os = require 'os'
utils = require 'src/utils'
pathUtils = require 'path'
{getFilePath} = require './links'

DEFAULT_FILE_EXT = '.js'

isCoffee = (path) -> /\.(?:coffee|litcoffee|coffee\.md)$/.test(path)

module.exports = (File) -> (file) ->
    if file instanceof File.Iterator
        return

    scripts = []

    for tag, i in file.node.queryAll('script')
        omit = false
        for prop of tag.props
            if prop not in ['src', 'href', 'filename']
                omit = true
                break
        if omit
            continue

        tag.parent = null

        {src} = tag.props
        src ||= tag.props.href

        if src
            # file
            filename = getFilePath File, file, src
            script = fs.readFileSync filename, 'utf-8'
        else
            # tag
            script = tag.stringifyChildren()
            {filename} = tag.props
            if isCoffee(filename)
                script = "`module.exports = function(){`\n\n#{script}\n\n`};`"
            else
                script = "module.exports = function(){\n\n#{script}\n\n};"

        filePath = file.path

        # support win absolute paths
        if pathUtils.isAbsolute(filePath)
            filePath = encodeURIComponent filePath

        name = "#{filePath}##{i}"
        extname = (filename and pathUtils.extname(filename)) or DEFAULT_FILE_EXT
        path = pathUtils.join File.SCRIPTS_PATH, name + extname
        fs.outputFileSync path, script
        File.Scripts.scripts[name] = require path
        scripts.push name

    file.scripts = new File.Scripts file, scripts

    return