#!/usr/bin/env python3

import toml
import pathlib
from datetime import datetime

_autouploadFiles = []

class AutoUpload(object):
    """AutoUpload is a class handling the state of videos automatically uploaded by prismedia"""

    _currentVideo = None
    _videoSuffix = ".mp4"

    _urlSuffix = "-url"
    _errorSuffix = "-error"
    _publishSuffix = "-publish"
    _lastUpdateTimeKey = "update-time"

    def __init__(self, autouploadFile):
        super(AutoUpload, self).__init__()

        # print("content of file")
        # with open(autouploadFile, "r") as file:
        #     print(file.readlines())

        self._autouploadFile = autouploadFile
        self._basePath = pathlib.Path(autouploadFile).resolve().parent
        self._autoUploadConfig = toml.load(autouploadFile)

        _autouploadFiles.append((autouploadFile, self))

        # This should take care of circular references
        # TODO: make a test for this
        for autouploadFile in self._autoUploadConfig.get("autoupload", []):
            alreadyPresentAutoupload = False

            for file in _autouploadFiles:
                if file[0] == autouploadFile:
                    alreadyPresentAutoupload = True

            if not alreadyPresentAutoupload:
                AutoUpload(autouploadFile)

        # TODO: remove me / should only be here for debug
        # print("setting autouplad config")
        # print(self._autouploadFile)
        # print(self._autoUploadConfig)

    def nextVideo(self, platform, recursive=True):
        """Get the path to the next video to upload for a specific platform"""

        # Get next video from current autoupload file
        for nextVideo in self._autoUploadConfig["videos"]:
            if platform + self._urlSuffix not in self._autoUploadConfig["videos"][nextVideo]:
                self._currentVideo = nextVideo
                return (self._basePath / nextVideo).with_suffix(self._videoSuffix).resolve().as_posix()

        # Get next video from another autoupload file
        if recursive:
            for file in _autouploadFiles:
                if file[0] != self._autouploadFile:
                    print("file:", file, "autofile:", self._autouploadFile)
                    nextVideo = file[1].nextVideo(platform, False)
                    print(file, nextVideo)
                    if nextVideo:
                        self._currentVideo = nextVideo
                        return (self._basePath / nextVideo).with_suffix(self._videoSuffix).resolve().as_posix()

        # No video to upload for this platforms
        self._currentVideo = None
        return False

    def success(self, platform, url, publishDate):
        """Last video asked was successfully uploaded"""

        updateTime = datetime.today()

        self._autoUploadConfig["videos"][self._currentVideo].pop(platform + self._errorSuffix, None)


        self._autoUploadConfig["videos"][self._currentVideo][platform + self._urlSuffix] = url
        self._autoUploadConfig["videos"][self._currentVideo][platform + self._publishSuffix] = publishDate

        self._autoUploadConfig["videos"][self._currentVideo][self._lastUpdateTimeKey] = updateTime

        self._write()

    def error(self, platform, errorString):
        """There was an error on upload of last video"""

        updateTime = datetime.today()

        self._autoUploadConfig["videos"][self._currentVideo][platform + self._errorSuffix] = errorString

        self._autoUploadConfig["videos"][self._currentVideo][self._lastUpdateTimeKey] = updateTime

        self._write()

    def _write(self):
        """Private helper function
        Write current autoupload state on file(s)"""

        with open(self._autouploadFile, 'w', encoding="utf-8", errors="strict") as f:
            toml.dump(self._autoUploadConfig, f, encoder=toml.TomlPreserveInlineDictEncoder())  # can we also inherit from toml.TomlPreserveCommentEncoder()?