#!/usr/bin/env python
#
# Copyright (C) 2011 Google Inc. All rights reserved.
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# modification, are permitted provided that the following conditions are
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""Creates a zip file containing the web inspector files for debugging.

The zip file contains all the .html, .js, .css and image files used by the
web inspector.  The js files and css files are not concatenated and are not
minified."""

from __future__ import with_statement

import os
import StringIO
import sys
import zipfile

import concatenate_js_files
import generate_devtools_html
import generate_devtools_extension_api


class ParsedArgs:
    def __init__(self, inspector_html, devtools_files, workers_files, extension_api_files,
                 search_dirs, js_search_dirs, output_filename):
        self.inspector_html = inspector_html
        self.devtools_files = devtools_files
        self.workers_files = workers_files
        self.extension_api_files = extension_api_files
        self.search_dirs = search_dirs
        self.js_search_dirs = js_search_dirs
        self.output_filename = output_filename


def parse_args(argv):
    inspector_html = argv[0]

    devtools_files_position = argv.index('--devtools-files')
    workers_files_position = argv.index('--workers-files')
    extension_api_files_position = argv.index('--extension-api-files')
    search_path_position = argv.index('--search-path')
    js_search_path_position = argv.index('--js-search-path')
    output_position = argv.index('--output')

    devtools_files = argv[devtools_files_position + 1:workers_files_position]
    workers_files = argv[workers_files_position + 1:extension_api_files_position]
    extension_api_files = argv[extension_api_files_position + 1:search_path_position]
    search_dirs = argv[search_path_position + 1:js_search_path_position]
    js_search_dirs = argv[js_search_path_position + 1:output_position]

    return ParsedArgs(inspector_html, devtools_files, workers_files, extension_api_files,
                      search_dirs, js_search_dirs, argv[output_position + 1])


def main(argv):
    parsed_args = parse_args(argv[1:])

    devtools_html = StringIO.StringIO()
    with open(parsed_args.inspector_html, 'r') as inspector_file:
        generate_devtools_html.write_devtools_html(
            inspector_file, devtools_html, True, parsed_args.devtools_files)

    zip = zipfile.ZipFile(parsed_args.output_filename, 'w', zipfile.ZIP_DEFLATED)
    zip.writestr("devtools.html", devtools_html.getvalue())

    devtools_extension_api = StringIO.StringIO()
    generate_devtools_extension_api.write_devtools_extension_api(
        devtools_extension_api, parsed_args.extension_api_files)
    zip.writestr("devtools_extension_api.js", devtools_extension_api.getvalue())

    js_extractor = concatenate_js_files.OrderedJSFilesExtractor(
        devtools_html.getvalue())

    js_dirs = parsed_args.search_dirs + parsed_args.js_search_dirs
    expander = concatenate_js_files.PathExpander(js_dirs)
    files = js_extractor.ordered_js_files
    for input_file_name in set(files):
        full_path = expander.expand(input_file_name)
        if full_path is None:
            raise Exception('File %s referenced in %s not found on any source paths, '
                            'check source tree for consistency' %
                            (input_file_name, 'devtools.html'))
        zip.write(full_path, os.path.basename(full_path))

    front_end_path = os.path.dirname(os.path.abspath(parsed_args.inspector_html))

    for input_file_name in set(parsed_args.workers_files):
        script_path = os.path.dirname(os.path.abspath(input_file_name))
        if script_path.startswith(front_end_path):
            script_path = script_path.replace(front_end_path, "")
            if len(script_path) > 0:
                script_path += '/'
            zip.write(input_file_name,
                      script_path + os.path.basename(input_file_name))
        else:
            raise Exception('Worker script %s is not from Inspector front-end dir' % (input_file_name))

    for dirname in parsed_args.search_dirs:
        for filename in os.listdir(dirname):
            if filename.endswith('.css'):
                zip.write(os.path.join(dirname, filename), filename)
        dirname = os.path.join(dirname, 'Images')
        for filename in os.listdir(dirname):
            if filename.endswith('.png') or filename.endswith('.gif'):
                zip.write(os.path.join(dirname, filename),
                          os.path.join('Images', filename))

    # It would be nice to use the with statement to scope closing the archive,
    # but that wasn't added until python 2.7.
    zip.close()


if '__main__' == __name__:
    sys.exit(main(sys.argv))