#!/usr/bin/python
# -*- coding: utf-8 -*-


import os
from . import Debug
import platform


def GetExtension(path):
    """
    获得扩展名
    """
    return os.path.splitext(path)[1]


def GetNameNotExtension(path):
    """
    获得无扩展名的文件名
    """
    return os.path.splitext(path)[0]


def FindAllFiles(path, extensions=None, startPath=None):
    """
    获得所有文件路径

    path 可以是文件或目录
    extensions 是List类型 为None时，默认获得所有文件
    startPath 为None时，返回的是文件的绝对路径
    """
    _ls = []
    if os.path.isfile(path):
        extension = GetExtension(path).lower()
        if extensions is None:
            if startPath is None:
                _ls.append(PathFormatUTF8(path))
            else:
                _ls.append(PathFormatUTF8(os.path.relpath(path, startPath)))
        else:
            if extension in extensions:
                if startPath is None:
                    _ls.append(PathFormatUTF8(path))
                else:
                    _ls.append(PathFormatUTF8(
                        os.path.relpath(path, startPath)))
    elif os.path.isdir(path):
        for childPath in os.listdir(path):
            children = FindAllFiles(os.path.join(
                path, childPath), extensions, startPath)
            if children:
                _ls.extend(children)
    else:
        Debug.Log("%s路径不存在" % path)
        raise Exception
    return _ls


def DeletePathAll(path):
    """
    删除文件或文件夹
    """
    if os.path.isfile(path):
        os.remove(path)
    elif os.path.isdir(path):
        for childPath in os.listdir(path):
            DeletePathAll(os.path.join(path, childPath))
        os.rmdir(path)
    elif not os.path.exists(path):
        pass
    else:
        Debug.Log("%s路径有问题，别动，请找程序查看" % path)
        raise Exception


def DeletePathUtilIsNone(path, untilPath=None):
    """
    删除路径，如果当前路径文件夹中为空，会迭代删除文件夹
    直到untilPath为止

    untilPath 默认为None, 代表直到找到不为空的父路径停止删除
    """
    deletes = []
    if os.path.isfile(path):
        os.remove(path)
        deletes.append(path)
        deletes.extend(DeletePathUtilIsNone(os.path.dirname(path), untilPath))
    elif os.path.isdir(path):
        if len(os.listdir(path)) <= 0:
            if untilPath is None or path != untilPath:
                os.rmdir(path)
                deletes.append(path)
                deletes.extend(DeletePathUtilIsNone(
                    os.path.dirname(path), untilPath))
    elif not os.path.exists(path):
        pass
    else:
        Debug.Log("%s路径有问题，别动，请找程序查看" % path)
        raise Exception
    return deletes


def DeletePathUtilIsNoneOnUnityProject(path, untilPath=None):
    """
    删除路径，如果当前路径文件夹中为空，会迭代删除文件夹
    直到untilPath为止

    untilPath 默认为None, 代表直到找到不为空的父路径停止删除

    类似DeletePathUtilIsNone，区别在于这里还会判断unity3d的.meta文件
    """
    deletes = []
    if os.path.isfile(path):
        os.remove(path)
        deletes.append(path)
        metafile = path + '.meta'
        if os.path.exists(metafile):
            os.remove(metafile)
            deletes.append(metafile)
        deletes.extend(DeletePathUtilIsNoneOnUnityProject(
            os.path.dirname(path), untilPath))
    elif os.path.isdir(path):
        if len(os.listdir(path)) <= 0:
            if untilPath is None or path != untilPath:
                os.rmdir(path)
                deletes.append(path)
                metafile = path + '.meta'
                if os.path.exists(metafile):
                    os.remove(metafile)
                    deletes.append(metafile)
                deletes.extend(DeletePathUtilIsNoneOnUnityProject(
                    os.path.dirname(path), untilPath))
    elif not os.path.exists(path):
        pass
    else:
        Debug.Log("%s路径有问题，别动，请找程序查看" % path)
        raise Exception
    return deletes


def DirNotExistAndCreate(dirPath):
    """
    判断目录是否存在，不存在则创建出来
    """
    if not os.path.exists(dirPath):
        parentDirPath = os.path.dirname(dirPath)
        if not os.path.exists(parentDirPath):
            DirNotExistAndCreate(parentDirPath)
        os.makedirs(dirPath)


def PathFormatUTF8(path):
    platformName = platform.system()
    if platformName == 'Linux':
        return path
    elif platformName == 'Windows':
        return path.decode('gb2312')
    elif platformName == 'Darwin':
        return path
    else:
        return path