import re
import os
import ssh


class Git(ssh.SSH):
    projects = {}
    projects_list = []
    remotes = {}

    def __init__(self, hostname, path, user, passwd):
        super().__init__(hostname, path, user, passwd)
        self.base_path = [False]
        self.connect(5)
        self.local_path = None
        self.fix_cmd = None
        self.fix_name = None
        self.git_user = None
        self.git_email = None

    def global_init(self, git_user, git_email):
        self.git_user = git_user
        self.git_email = git_email
        cmd = "git config --global user.email \"{0}\";".format(git_email)
        cmd += "git config --global user.name \"{0}\";".format(git_user)
        stdout, stderr = self.run(cmd)
        if self.check_error(stderr):
            print("Global setting successful.")
        else:
            print(stderr)
            raise ValueError("Args Abnormal")

    def base_init(self):
        stdout, stderr = self.run("ls {}".format(self.path))
        if self.check_error(stderr):
            if "giteasy\n" in stdout:
                print("Directory already found.")
            else:
                stdout, stderr = self.run("mkdir {0}/{1}".format(self.path, "giteasy"))
                if self.check_error(stderr):
                    print("Create directory.")
                else:
                    raise ValueError(stderr)
            self.base_path = [True, "{0}{1}".format(self.path, "giteasy")]
        else:
            raise ValueError("Home Path Abnormal")

    def create_project(self, name):
        if self.base_path[0]:
            stdout, stderr = self.run("mkdir {0}/{1}".format(self.base_path[1], name))
            if self.check_error(stderr):
                print("Succeed In Making Directory.")
                self.projects[name] = {"path": "{0}/{1}".format(self.base_path[1], name), "branch": []}
                cmd = "cd {0};".format(self.projects[name]["path"])
                cmd += "git init;"
                cmd += "touch ReadME.md;"
                cmd += "git add *;"
                cmd += "git commit --message=init;"
                stdout, stderr = self.run(cmd)
                if self.check_error(stderr):
                    print("Succeed In Getting Repository.")
                else:
                    print(stderr)
                    raise ValueError("Target Path Abnormal")
            else:
                raise ValueError("Base Path Abnormal")
        else:
            raise UnboundLocalError("Init Base First")

    def clone_project(self):
        os.chdir(self.local_path)
        os.popen("git clone ssh://{0}@{1}:{2}/{3}/.git".format(self.user, self.hostname, self.base_path[1],
                                                               self.fix_name))

    def init_project_local(self, name):
        os.chdir(self.local_path)
        try:
            os.mkdir(name)
        except FileExistsError:
            os.chdir(os.path.join(self.local_path, name))
            raise FileExistsError("Project Already Exist.")
        os.chdir(os.path.join(self.local_path, name))
        cmd = "git init"
        os.popen(cmd)

    def global_init_local(self):
        cmd = "git config --global user.email \"{0}\"".format(self.git_email)
        print(os.popen(cmd).read())
        cmd = "git config --global user.name \"{0}\"".format(self.git_user)
        print(os.popen(cmd).read())

    def update_projects(self):
        if self.base_path[0]:
            stdout, stderr = self.run("ls {0}".format(self.base_path[1]))
            if self.check_error(stderr):
                reform = re.compile("\w+")
                for project in stdout:
                    print("PROJECT", project)
                    project_name = reform.match(project).string.strip('\n')
                    self.projects[project_name] = {"path": "{0}/{1}".format(self.base_path[1], project_name),
                                                   "branch": []}
            else:
                raise ValueError("Base Path Abnormal")

            self.list_projects()

        else:
            raise UnboundLocalError("Init Base First")

    def list_projects(self):
        for project in self.projects.keys():
            self.projects_list.append(project)
            print(project)

    def set_local(self, path):
        self.remotes = {}
        self.local_path = path
        os.chdir(self.local_path)

    def add_remote(self, name="origin"):
        os.popen("git remote add {3} ssh://{0}@{1}:{2}/{4}/.git".format(self.user, self.hostname, self.base_path[1],
                                                                        name, self.fix_name))
        self.remotes[name] = {"name": name,
                              "url": "ssh://{0}@{1}:{2}/{3}/.git".format(self.user, self.hostname, self.base_path[1],
                                                                         self.fix_name)}

    def fetch_remote(self, name):
        if name in self.remotes.keys():
            os.popen("git fetch {0}".format(name))

    def get_remote(self):
        ret_code = re.compile(r"[\t, ]")
        for remote in os.popen("git remote -v").readlines():
            results = ret_code.split(remote)
            print(results)
            results = list(results)
            if len(results) > 1:
                for item in results:
                    if item[0] not in self.remotes.keys():
                        self.remotes[results[0]] = {"name": results[0], "url": results[1]}

    def push_remote(self, name, branch):
        print(self.projects[self.fix_name]["branch"])
        print(self.projects[self.fix_name])
        if branch in self.projects[self.fix_name]["branch"] and name in self.remotes.keys():
            os.popen("git push {0} {1}".format(name, branch))
        else:
            raise ValueError("Branch or Name Abnormal")

    def pull_remote(self, name, branch):
        if name in self.remotes.keys():
            os.popen("git pull {0} {1}".format(name, branch))
        else:
            raise ValueError("Remote Error")

    def fix_project(self, name):
        if name in self.projects_list:
            self.fix_name = name
            stdout, stderr = self.run("cd {0}".format(self.projects[name]["path"]))
            if self.check_error(stderr):
                self.fix_cmd = "cd {0}".format(self.projects[name]["path"]) + ";"
                os.chdir(os.path.join(self.local_path, self.fix_name))
            else:
                raise ValueError("Project Path Abnormal")

    def commit(self, message):
        if self.base_path[0]:
            stdout, stderr = self.run(self.fix_cmd + "git commit --message={0}".format(message))
            if self.check_error(stderr):
                print(stdout)
            else:
                raise ValueError(stderr)
        else:
            raise UnboundLocalError("Init Base First")

    def commit_local(self, message):
        if self.base_path[0]:
            os.popen("git commit --message={0}".format(message))
        else:
            raise UnboundLocalError("Init Base First")

    @staticmethod
    def add():
        os.popen("git add *")

    def get_branch(self):
        if self.base_path[0] and self.fix_name is not None:
            stdout, stderr = self.run(self.fix_cmd + "git branch")
            if self.check_error(stderr):
                self.projects[self.fix_name]["branch"] = []
                reform = re.compile("\w+")
                for branch in stdout:
                    branch_name = reform.search("*master").group().strip('\n')
                    self.projects[self.fix_name]["branch"].append(branch_name)

                    if '*' in str(branch):
                        self.projects[self.fix_name]["active_branch"] = branch_name
            else:
                print(stderr)
                raise ValueError("Command Error")

    def list_branch(self):
        for project in self.projects.items():
            for branch in project[1]["branch"]:
                if branch == project[1]["active_branch"]:
                    print("(*)", branch)
                else:
                    print("   ", branch)


if __name__ == "__main__":
    compute = Git("compute.bktus.com", "/home/git", "git", "123456")
    compute.global_init(git_user="saturneric", git_email="eric.bktu@gmail.com")
    compute.global_init_local()
    compute.base_init()
    # compute.create_project("lcs")
    compute.update_projects()
    compute.list_projects()
    compute.fix_project("lcs")
    compute.get_branch()
    compute.set_local("C:\\Users\\Saturneric\\Documents\\Code\\")
    # compute.init_project_local("test")
    compute.add_remote()
    compute.get_remote()
    compute.list_branch()