import json
import os
import subprocess
from pathlib import Path

from PyInquirer import prompt

from AbstractModule import AbstractModule


def get_vim_root():
    # return Path().home().joinpath(".vim")
    return Path(os.getcwd()).joinpath("devenv", ".vim")


class VimModule(AbstractModule):
    def __init__(self):
        super().__init__()
        self.json_config = {}
        with open("modules/vim/vimrc_conf.json") as plugins:
            self.json_config = json.load(plugins)

    def create_folder_structure(self):
        os.makedirs(str(get_vim_root().joinpath("autoload")), exist_ok=True)
        os.makedirs(str(get_vim_root().joinpath("plugged")), exist_ok=True)

    def get_vimplug_file(self):
        vimplug_filepath = Path(str(get_vim_root().joinpath("autoload")))
        print(vimplug_filepath)
        if os.path.isfile(str(get_vim_root().joinpath("autoload", "plug.vim"))):
            print("Vimplug already installed!")
        else:
            curl_request = "curl {} -o {}".format(
                self.json_config['pluginmanager_url'],
                str(get_vim_root().joinpath("autoload", "plug.vim"))
            )
            subprocess.call(curl_request, shell=True)

    def create_plugin_section(self):
        vimrc_content = []
        plugins = self.json_config['plugins']
        print("Available Plugins:")
        plugin_selection = [
            {
                'type': 'checkbox',
                'message': 'Select plugins',
                'name': 'modules',
                'choices': list(map(lambda x: {"name": x}, plugins.keys()))
            }
        ]
        selected_plugins = prompt(plugin_selection)['modules']
        if len(selected_plugins) > 0:
            self.get_vimplug_file()
        print("\033[4mYour selection:\033[0m")
        [print(x) for x in selected_plugins]

        try:
            index = vimrc_content.index("call plug#begin('~/.vim/plugged')\n") + 1
            for plugin in selected_plugins:
                vimrc_content.insert(index, plugins[plugin] + "\n")

        except ValueError:
            vimrc_content.append("call plug#begin('~/.vim/plugged')\n")
            for element in selected_plugins:
                vimrc_content.append(plugins[element] + "\n")
            vimrc_content.append("call plug#end()\n")

        return vimrc_content

    def create_setting_section(self):
        default_settings = list(self.json_config['settings'].values())

        print("\n\033[4mDefault settings:\033[0m")
        [print(i) for i in default_settings]

        vimrc_content = list(map(lambda x: x + "\n", default_settings))
        return vimrc_content

    def get_vimfile_working_copy(self):
        vimrc_path = str(get_vim_root().joinpath(".vimrc"))
        try:
            with open(vimrc_path, "r") as vimrc_file:
                vimrc_content = vimrc_file.readlines()
        except FileNotFoundError:
            vimrc_content = []

        return vimrc_content

    def write_vimfile(self, vimrc_content):
        seen = set()
        seen_add = seen.add
        vimrc_content = [x1 for x1 in vimrc_content if not (x1 in seen or seen_add(x1))]

        vimrc_path = str(get_vim_root().joinpath(".vimrc"))
        with open(vimrc_path, "w") as vimrc_file:
            for line in vimrc_content:
                vimrc_file.write(line)

    def exec_plugin_manager(self):
        install_plugins = "vim +PlugInstall +qall +silent"
        subprocess.call(install_plugins, shell=True)

    def run(self):
        self.create_folder_structure()
        plugin_section = self.create_plugin_section()
        settings_section = self.create_setting_section()
        self.write_vimfile(settings_section + plugin_section)
        self.exec_plugin_manager()