import os, sys, datetime, subprocess, shlex, shutil, requests, time, json, oss2
import platform
if platform.system() == 'Windows':
    sys.path.append('e:\\libs\\')
else:
    sys.path.append('/data/deploy/make3d/make2/libs/')
    
import config, libs, libs_db

def down_xmps_from_oss(psid):
    def need_down():
        filename = f'xmps/{psid}/{psid}.rcbox'
        if not config.oss_bucket.object_exists(filename):
            print(f'未找到{filename}, 请检查是否已经上传{psid}号影棚坐标文件')
            time.sleep(5)
            return False
        #获取到oss上文件rcbox的最后修改时间
        oss_file_last_modified = float(config.oss_bucket.get_object_meta(filename).last_modified)
        #本地文件的路径
        local_file = os.path.join(config_path, 'xmps', psid, f'{psid}.rcbox')
        #判断本地文件是否存在 rcbox文件
        if not os.path.exists(local_file): 
            #不存在本地文件,从云端进行下载
            print(f'未找到{local_file}, 需要下载影棚坐标文件')
            os.makedirs(os.path.join(config_path, 'xmps', psid), exist_ok=True)
            config.oss_bucket.get_object_to_file(filename, local_file)
            return True
        #文件已在本地存在,则判断本地时间先后问题
        local_file_last_modified = os.path.getmtime(local_file)
        if oss_file_last_modified > local_file_last_modified:
            print(f'本地{local_file}文件已过期, 需要下载影棚坐标文件')
            config.oss_bucket.get_object_to_file(filename, local_file)
            return True
    
    
    if not need_down(): return

    print('正在下载影棚坐标文件')
    dest_path = os.path.join(config_path, 'xmps', psid)

    if os.path.exists(os.path.join(dest_path)):
        shutil.rmtree(os.path.join(dest_path), ignore_errors=True)
  
    os.makedirs(os.path.join(dest_path, 'mesh'), exist_ok=True)
    os.makedirs(os.path.join(dest_path, 'texture'), exist_ok=True)

    prefix = f'xmps/{psid}/mesh/'
    filelist = oss2.ObjectIteratorV2(config.oss_bucket, prefix=prefix)
    for file in filelist:
        if file.key.endswith('.xmp'): 
            filename = file.key.split('/')[-1]
            print('正在下载:', file.key)
            config.oss_bucket.get_object_to_file(file.key, os.path.join(dest_path, 'mesh', filename))

    prefix = f'xmps/{psid}/texture/'
    filelist = oss2.ObjectIteratorV2(config.oss_bucket, prefix=prefix)
    for file in filelist:
        if file.key.endswith('.xmp'):
            filename = file.key.split('/')[-1]
            print('正在下载:', file.key)
            config.oss_bucket.get_object_to_file(file.key, os.path.join(dest_path, 'texture', filename))
    
    #下载rcbox文件
    print("下载rcbox文件")
    filename_rcbox = f'xmps/{psid}/{psid}.rcbox'
    local_file_rcbox = os.path.join(config_path, 'xmps', psid, f'{psid}.rcbox')
    config.oss_bucket.get_object_to_file(filename_rcbox, local_file_rcbox)

    print('下载完成')


#判断远程文件和本地文件的时间问题
def local_and_remote_file_time(psid,pid):
    #远程文件的路径
    config_path = os.path.join(config.sharedir, 'libs')
    xmps_mesh_path = os.path.join(config_path, 'xmps', psid)
    remotefile = os.path.join(xmps_mesh_path, f'{psid}.rcbox')
    #本地文件的路劲
    input_path = os.path.join(config.workdir, pid)
    ImagesGeometry = os.path.join(input_path)
    localfile = os.path.join(ImagesGeometry, f'{pid}.rcbox')
    print(f'比对本地文件和远程文件的时间先后--remotefile: {remotefile}, localfile: {localfile}')
    if os.path.exists(localfile):
        remotefile_last_modified = os.path.getmtime(remotefile)
        localfile_last_modified = os.path.getmtime(localfile)
        print(f'本地文件的时间{localfile_last_modified}, 远程文件的时间{remotefile_last_modified}')
        #比较两个文件的时间
        if float(remotefile_last_modified) < float(localfile_last_modified):
            print(f'本地{localfile}文件已是最新,')
            return "local_file_best_new"
        
        else:
            print(f'远程{remotefile}文件最新')
            return "remote_file_best_new"
    print(f'本地{localfile}文件不存在')
    return "local_file_not_exist"

if __name__ == '__main__':
    start = datetime.datetime.now()
    if len(sys.argv) == 2:
        pids = sys.argv[1]
    else:
        print('usage: python downxmps.py [pids]')
        exit(1)

    for pid in pids.split(','):
        #本地的路径
        input_path = os.path.join(config.workdir, pid)
        ImagesGeometry = os.path.join(input_path, "photo1")
        ImagesTexture = os.path.join(input_path, "photo2")
        
        #共享盘上的路径
        psid = libs.getPSid(pid)
        config_path = os.path.join(config.sharedir, 'libs')
        xmps_mesh_path = os.path.join(config_path, 'xmps', psid, 'mesh')
        xmps_texture_path = os.path.join(config_path, 'xmps', psid, 'texture')

        # 从oss下载影棚坐标文件
        down_xmps_from_oss(psid)

        # 根据坐标文件时间戳判断是否需要更新
        if local_and_remote_file_time(psid,pid) == "local_file_best_new":
            print(f'本地文件已是最新, 不需要下载云端影棚坐标文件')
            continue
        # remotefile = os.path.join(xmps_mesh_path, '11_1.xmp')
        # localfile = os.path.join(ImagesGeometry, '11_1.xmp')
        # print(f'remotefile: {remotefile}, localfile: {localfile}')
        # if os.path.exists(localfile):
        #     remotefile_last_modified = os.path.getmtime(remotefile)
        #     localfile_last_modified = os.path.getmtime(localfile)
        #     if remotefile_last_modified <= localfile_last_modified:
        #         print(f'本地{localfile}文件已是最新, 不需要更新')
        #         continue

        print(f'正在更新{pid}号影棚坐标文件')
        os.system('xcopy /y /q ' + xmps_mesh_path + '\*.* ' + ImagesGeometry)
        os.system('xcopy /y /q ' + xmps_texture_path + '\*.* ' + ImagesTexture)