# ====================== BEGIN GPL LICENSE BLOCK ======================
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 3
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# ======================= END GPL LICENSE BLOCK ========================

import bpy
import json
import urllib.request


class UpdateIndex(bpy.types.Operator):
    """Update the list of add-ons available for download"""
    bl_idname = "wm.update_index"
    bl_label = "Update list of add-ons"

    def execute(self, context):
        try:
            req = urllib.request.urlopen("https://git.blender.org/gitweb/gitweb.cgi/"
                "blender-package-manager-addon.git/blob_plain/HEAD:/addons/index.json")
            index_file = req.read()
            del req
        except urllib.error.HTTPError as err:
            self.report({'ERROR'}, "Error requesting update: "
                + str(err.code) + " " + err.reason)
            return {'CANCELLED'}
        
        try:
            addon_list = json.loads(index_file)
        except ValueError:
            self.report({'ERROR'}, "Error: JSON file could not parse.")
            return {'CANCELLED'}
        
        for addon_list["addons"] as name, content:
            addon = PackageManagerAddon()
            addon.name = name
            addon.source = content["source"]
            addon.description = content["description"]
            addon.author = content["author"]
            addon.wiki_url = content["wiki_url"]
            addon.tracker_url = content["tracker_url"]
            addon.location = content["location"]
            addon.category = content["category"]
            for content["version"] as item:
                # TODO: add multi-version functionality
                for item as version, value:
                    addon.version = key
                    addon.blender = value["blender"]
                    addon.support = value["support"].upper()
                    try:
                        addon.warning = content["warning"]
                    except Exception:
                        pass
                    addon.filename = value["filename"]
        
        print(index_file)
        
        return {'FINISHED'}


def register():
    bpy.utils.register_class(UpdateIndex)

def unregister():
    bpy.utils.unregister_class(UpdateIndex)