#!/usr/bin/python
# -*- coding: utf-8 -*-
# ---------------------------------------------------------------------------------------------------------
# Author : Ulrich Carmesin
# Source : gitea.ucarmesin.de
# ---------------------------------------------------------------------------------------------------------
import os
import re
import subprocess
import sys
import basic.toolHandling
import utils.data_const as D
import basic.constants as B
import basic.text_const as T
import utils.date_tool

DEFAULT_CNT_COMMITS = 10
COMMIT_ID = "commit"
COMMIT_AUTHOR = "author"
COMMIT_DATE = "date"
COMMIT_COMMENT = "comment"

def runGit(job, repo, cmd):
    cdpath = ""
    if os.path.isdir(repo):
        cdpath = repo
    elif repo in job.conf.confs[B.SUBJECT_PATH]:
        cdpath = job.conf.confs[B.SUBJECT_PATH][repo]
    else:
        raise Exception(T.EXP_PATH_MISSING, repo)
    os.chdir(cdpath)
    text = ""
    process = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
    btext = process.communicate()[0]
    text = btext.decode('utf-8')
    return text

def gitStatus(job, repo):
    text = runGit(job, repo, "git status")

def gitLog(job, repo, arg="", cnt=DEFAULT_CNT_COMMITS):
    """
     extracts the last cnt commits into th structure
    :param job:
    :param repo:
    :param cnt:
    :return: [ {commit: "", author: ]
    """
    text = runGit(job, repo, "git log")
    if len(arg) > 1:
        arg = " -- "+arg
    else:
        arg = ""
    text = runGit(job, repo, "git log --pretty=format:\"%H | %cn | %cd | %s\""+arg)
    print(text)
    logs = []
    for l in text.split("\n"):
        res = {}
        a = l.split("|")
        res[COMMIT_ID] = a[0].strip()
        res[COMMIT_AUTHOR] = a[1].strip()
        cdate = utils.date_tool.parseDate(a[2].strip())
        res[COMMIT_DATE] = utils.date_tool.getFormatDatetupel(cdate, utils.date_tool.F_DIR)
        res[COMMIT_COMMENT] = a[3].strip()
        logs.append(res)
    print(str(logs))


def gitCommits(job, repo, arg=""):
    if len(arg) > 1:
        arg = " -- "+arg
    else:
        arg = ""
    text = runGit(job, repo, "git log --pretty=format:\"%H | %cn | %cd | %s\""+arg)
    print(text)

def gitPull(job, repo):
    if "git" not in job.conf.confs[B.SUBJECT_TOOL] or repo not in job.conf.confs[B.SUBJECT_TOOL]["git"]:
        raise Exception(T.EXP_CONFIG_MISSING, "tool.git."+repo)
    #print(str(job.conf.confs[B.SUBJECT_TOOL]["git"][repo]))
    master = job.conf.confs[B.SUBJECT_TOOL]["git"][repo]["master"]
    remote = job.conf.confs[B.SUBJECT_TOOL]["git"][repo]["remote"]
    text = runGit(job, repo, "git status")
    if "Commit vor" in text:
        print("Das Repository "+repo+" bitte zuerst pushen \n")
        #print(text+"\"-------------------------------------\n")
    else:
        print("Repository "+repo+" kann gepullt werden.")
        #runGit(job, repo, "git pull "+remote+" "+master)