#!/usr/bin/env python

# A large proportion of this code is taken from the peewee project.
# This code is made available under the MIT License
# https://github.com/coleifer/peewee/tree/master

from collections import OrderedDict
from getpass import getpass
import sys
import data_models as dm
from crud import *


def initialize(db_passphrase):
    dm.db.init("permissions.db", passphrase=db_passphrase)
    list_table_models = [dm.Person,
                         dm.Resource,
                         dm.Role,
                         dm.Permission,
                         dm.UserAccount]
    dm.db.create_tables(list_table_models)


def menu_loop():
    menu_choice = None
    while menu_choice != 'q':
        for key, value in menu.items():
            print('%s) %s' % (key, value[1]))
        menu_choice = input('Action: ').lower().strip()
        if menu_choice in menu:
            menu[menu_choice][0]()


def person_menu_loop():
    person_menu_choice = None
    while person_menu_choice != 'q':
        for key, value in person_menu.items():
            print('%s) %s' % (key, value[1]))
        person_menu_choice = input('Action: ').lower().strip()
        if person_menu_choice in person_menu:
            person_menu[person_menu_choice][0]()


def resource_menu_loop():
    resource_menu_choice = None
    while resource_menu_choice != 'q':
        for key, value in resource_menu.items():
            print('%s) %s' % (key, value[1]))
        resource_menu_choice = input('Action: ').lower().strip()
        if resource_menu_choice in resource_menu:
            resource_menu[resource_menu_choice][0]()


def role_menu_loop():
    role_menu_choice = None
    while role_menu_choice != 'q':
        for key, value in role_menu.items():
            print('%s) %s' % (key, value[1]))
        role_menu_choice = input('Action: ').lower().strip()
        if role_menu_choice in role_menu:
            role_menu[role_menu_choice][0]()


def permission_menu_loop():
    permission_menu_choice = None
    while permission_menu_choice != 'q':
        for key, value in permission_menu.items():
            print('%s) %s' % (key, value[1]))
        permission_menu_choice = input('Action: ').lower().strip()
        if permission_menu_choice in permission_menu:
            permission_menu[permission_menu_choice][0]()


def user_account_menu_loop():
    user_account_menu_choice = None
    while user_account_menu_choice != 'q':
        for key, value in user_account_menu.items():
            print('%s) %s' % (key, value[1]))
        user_account_menu_choice = input('Action: ').lower().strip()
        if user_account_menu_choice in user_account_menu:
            user_account_menu[user_account_menu_choice][0]()


menu = OrderedDict([
    ('1', (person_menu_loop, "Person")),
    ('2', (resource_menu_loop, "Resource")),
    ('3', (role_menu_loop, "Role")),
    ('4', (permission_menu_loop, "Permission")),
    ('5', (user_account_menu_loop, "User Account"))
])

person_menu = OrderedDict([
    ('1', (add_person, "Add Person")),
    ('2', (list_person, "List Person")),
    ('3', (edit_person, "Edit Person")),
    ('4', (delete_person, "Delete Person")),
])

resource_menu = OrderedDict([
    ('1', (add_resource, "Add Resource")),
    ('2', (list_resource, "List Resources")),
    ('3', (edit_resource, "Edit Resource")),
    ('4', (delete_resource, "Delete Resource")),
])

role_menu = OrderedDict([
    ('1', (add_role, "Add Role")),
    ('2', (list_role, "List Roles")),
    ('3', (edit_role, "Edit Role")),
    ('4', (delete_role, "Delete Role")),
])

permission_menu = OrderedDict([
    ('1', (add_permission, "Add Permission")),
    ('2', (list_permission, "List Permissions")),
    ('3', (edit_permission, "Edit Permission")),
    ('4', (delete_permission, "Delete Permission")),
])

user_account_menu = OrderedDict([
    ('1', (add_user_account, "Add User Account")),
    ('2', (list_user_account, "List User Accounts")),
    ('3', (edit_user_account, "Edit User Account")),
    ('4', (delete_user_account, "Delete User Account")),
])

if __name__ == '__main__':
    # Collect the passphrase using a secure method.
    passphrase = getpass('Entre le mot de passe: ')

    if not passphrase:
        sys.stderr.write('Un mot de passe est requis pour accéder à la base de données.\n')
        sys.stderr.flush()
        sys.exit(1)

    # Initialize the database.
    initialize(passphrase)
    menu_loop()