#coding=utf-8

import json, os, sys, uuid, datetime, subprocess, traceback


def runCmd(cmd):
    return [str(x) for x in subprocess.check_output(cmd, shell=True).splitlines()]

def getServerId():
    try:
        return open('/tmp/serverId').read()
    except IOError:
        serverId = str(uuid.uuid4())+" "+str(datetime.datetime.now())
        ofile = open('/tmp/serverId', 'w')
        ofile.write(serverId)
        ofile.close()
        return serverId

def handler(event, context):
    try:
        return handler2(event, context)
    except Exception:
        exstr = traceback.format_exc()
        result = {
            'statusCode': 500,
            'headers': {'Content-Type': 'application/json; charset=utf-8'},
            'body': json.dumps({
                "exception": exstr.splitlines(),
            })}
        return result


def handler2(event, context):
    reqid = event['detail']["headers"]["x-jdcloud-request-id"]
    print(reqid)
    serverId = None
    try:
        serverId = getServerId()
    except Exception as e:
        serverId = str(e)


    cmds = event['detail']["queryParameters"].get("cmds", None)
    if cmds is None:
        cmds = []
    elif type(cmds) is str:
        cmds = [cmds]

    cmdResult = []
    for cmd in cmds:
        cmdResult.append([cmd, runCmd(cmd)])

    result = {
        'statusCode': 200,
        'headers': {'Content-Type': 'application/json; charset=utf-8'},
        'body': json.dumps({
          'serverId': serverId,
          "sys.version": sys.version,
          "event":event,
          "uid":os.getuid(),
          "context":str(context),
          "cmdResult": cmdResult,
          #"environ":dict(os.environ.items()),
          }, sort_keys=True),
    }

    return result

if __name__ == '__main__':
    import jdcloud_apim_mock as mock
    import sys
    if len(sys.argv) == 2:
        mock.run(handler, sys.argv[1])
    else:
        mock.run(handler, "127.0.0.1:8080")