import appdirs
import os
from configparser import ConfigParser
import csv

from properties import config

class AppDataStorage(object):

    SETTINGS_FILE = "config.ini"
    RECENT_PROJECTS_FILE = "recent.cfg"
    RECENT_PROJECTS_FIELDS = ["path", "name", "date", "pinned"]

    def __init__(self):
        self.__appDataPath = appdirs.user_data_dir(config.APP_NAME, config.APP_AUTHOR_SHORT, config.APP_VERSION)
        self.__settingsPath = os.path.join(self.__appDataPath, AppDataStorage.SETTINGS_FILE)
        self.__recentProjectsPath = os.path.join(self.__appDataPath, AppDataStorage.RECENT_PROJECTS_FILE)

    # make missing dirs in path
    def __createPath(self, path):
        dir = os.path.dirname(path)
        os.makedirs(dir, exist_ok=True)

    def readSettings(self):
        if (os.path.exists(self.__settingsPath)):
            parser = ConfigParser()
            parser.read(self.__settingsPath)
            # todo: finish this

    def writeSettings(self, settings):
        pass # todo: finish this

    def __parseRow(self, row):
        row['date'] = int(row['date'])
        row['pinned'] = row['pinned'].lower() in ['true', 'yes', '1', 'on']
        return row

    def readRecentProjects(self):
        if (os.path.exists(self.__recentProjectsPath)):
            with open(self.__recentProjectsPath, 'r') as recentProjectsFile:
                csvreader = csv.DictReader(recentProjectsFile, fieldnames=AppDataStorage.RECENT_PROJECTS_FIELDS)
                for row in csvreader:
                    yield self.__parseRow(row)

    def writeRecentProjects(self, items):
        self.__createPath(self.__recentProjectsPath)
        with open(self.__recentProjectsPath, 'w') as recentProjectsFile:
            csvwriter = csv.DictWriter(recentProjectsFile, AppDataStorage.RECENT_PROJECTS_FIELDS)
            csvwriter.writerows(items)