import os
import logging
import urlparse

from sugar.objects import mime
from sugar import activity

import objecttypeservice

class ClipboardObject:

    def __init__(self, object_path, name):
        self._id = object_path
        self._name = name
        self._percent = 0
        self._formats = {}

    def destroy(self):
        for type, format in self._formats.iteritems():
            format.destroy()

    def get_id(self):
        return self._id

    def _get_type_info(self):
        logging.debug('_get_type_info')
        type_registry = objecttypeservice.get_instance()
        return type_registry.GetTypeForMIME(self.get_mime_type())
    
    def get_name(self):
        if self._name:
            return self._name
        else:
            type_info = self._get_type_info()
            if type_info:
                return type_info['name']
            else:
                return ''

    def get_icon(self):
        type_info = self._get_type_info()
        if type_info:
            return type_info['icon']
        else:
            return ''

    def get_preview(self):
        # TODO: should previews really be here?
        #return self._get_type_info().get_preview()
        return ''

    def get_activity(self):
        logging.debug('get_activity')
        mapping = {'text/html'        : 'org.laptop.WebActivity',
                   'image/jpeg'       : 'org.laptop.WebActivity',
                   'image/gif'        : 'org.laptop.WebActivity',
                   'image/png'        : 'org.laptop.WebActivity',
                   'text/plain'       : 'org.laptop.AbiWordActivity',
                   'text/rtf'         : 'org.laptop.AbiWordActivity',
                   'text/richtext'    : 'org.laptop.AbiWordActivity'}
        mime = self.get_mime_type()
        if not mime:
            return ''
        """
        registry = activity.get_registry()
        activities = registry.get_activities_for_type(self.get_mime_type())
        # TODO: should we return several activities?
        if activities:
            return activities[0]
        else:
            return ''
        """
        if mapping.has_key(mime):
            return mapping[mime]
        else:
            return ''

    def get_percent(self):
        return self._percent

    def set_percent(self, percent):
        self._percent = percent
    
    def add_format(self, format):
        self._formats[format.get_type()] = format
        # We want to get the activity early in order to prevent a DBus lockup.
        activity = self.get_activity()
    
    def get_formats(self):
        return self._formats

    def get_mime_type(self):
        logging.debug('Choosing between %r.' % self._formats.keys())
        if not self._formats:
            return ''

        if 'text/uri-list' in self._formats.keys():
            data = self._formats['text/uri-list'].get_data()
            uris = data.split('\n')
            if len(uris) == 1 or not uris[1]:
                uri = urlparse.urlparse(uris[0], 'file')
                if uri.scheme == 'file':
                    logging.debug('Choosed %r!' % mime.get_for_file(uri.path))
                    return mime.get_for_file(uri.path)

        for mime_category in ['image/', 'text/', 'application/']:
            for mime_type in self._formats.keys():
                if mime_type.startswith(mime_category) and \
                        not mime_type.split('/')[1].startswith('_'):
                    mime_type = mime_type.split(';')[0]
                    logging.debug('Choosed %r!' % mime_type)
                    return mime_type

        if 'STRING' in self._formats.keys():
            return 'text/plain'

        logging.debug('Returning first: %r.' % self._formats.keys()[0])
        return self._formats.keys()[0]

class Format:

    def __init__(self, type, data, on_disk):
        self._type = type
        self._data = data
        self._on_disk = on_disk

    def destroy(self):
        if self._on_disk:
            uri = urlparse.urlparse(self._data)
            os.remove(uri.path)

    def get_type(self):
        return self._type

    def get_data(self):
        return self._data

    def _set_data(self, data):
        self._data = data

    def is_on_disk(self):
        return self._on_disk