#!python3
'''
Created on Sep 21, 20-16
author: tpweis
file name: manifesttest.py
This function writes a manifest file for sleds.  The purpose if testing the
writemanifest algorithm and results.
'''

import os, time
import datetime
import subprocess
import shutil
import subprocess
import sys
import json


def writemanifest(target_dir, fullname):
    "function writemanifest"

    filename, file_ext = os.path.splitext(fullname)

    manifest = dict()
    originator = dict()
    originator["ipAddress"] = "127.0.0.1"
    originator["jobId"] = filename

    packages = dict()
    packages["package_name"] = filename
    packages["files"] = [fullname]

    manifest["data"] = {}

    createtime = datetime.datetime.utcnow().isoformat()
    manifest["dateCreated"] = createtime
    manifest["jobType"] = "loan"
    manifest["originator"] = originator
    manifest["packages"] = [packages]
    manifest["type"] = "SNT_JOB"
    manifest["workOrderName"] = "BENCHMARK_TEST_WORKORDER"

    # Save the manifest in the target directory
    newname = os.path.normpath(target_dir + "/" +filename + ".json")
    print("Manifest: " + newname)

    f = open(newname, 'w')
    json.dump(manifest, f, sort_keys=True, indent=4)
    f.close()

    print(json.dumps(manifest, sort_keys = True, indent=4))

    # We added the source_dir to the manifest file open, to ensure it is written in 
    # the correct location.  However, subsequent processing of the manifest file will
    # control the directories.  Thuse, return only the basename.
    return filename + ".json"


def main():
    "function main"

    arglist = sys.argv[1:]
    if(len(arglist)< 1):
        print("Missing Target Directory argument.  Try again")
        sys.exit(3)
    else:
        TARGETdir = arglist[0]

    if(len(arglist) < 2):
        print("Missing filename argument.  Try again")
        sys.exit(4)
    else:
        filename =arglist[1]

    manifest = writemanifest(TARGETdir,filename) 
    print("Saved new manifest as " + manifest)

    sys.exit(0)

    

if __name__ == '__main__':
    # execute only if run as a script
    main()