#!/usr/bin/env python
# -*- coding: utf-8 -*-
from django.conf import settings
from django.db import ProgrammingError
from django.db import connection


def is_tenants_mode():
    """
    判断是否为租户模式
    :return:
    """
    return hasattr(connection, 'tenant') and connection.tenant.schema_name


# ================================================= #
# ******************** 初始化 ******************** #
# ================================================= #
def _get_all_dictionary():
    from dvadmin.system.models import Dictionary
    queryset = Dictionary.objects.filter(status=True, is_value=False)
    data = []
    for instance in queryset:
        data.append({
            "id": instance.id,
            "value": instance.value,
            "children": list(Dictionary.objects.filter(parent=instance.id).filter(status=1).
                             values('label', 'value', 'type', 'color'))
        })
    return {ele.get("value"): ele for ele in data}


def _get_all_system_config():
    data = {}
    from dvadmin.system.models import SystemConfig
    system_config_obj = SystemConfig.objects.filter(status=True, parent_id__isnull=False).values(
        'parent__key', 'key', 'value', 'form_item_type').order_by('sort')
    for system_config in system_config_obj:
        data[f"{system_config.get('parent__key')}.{system_config.get('key')}"] = system_config.get('value') or ''
    return data


def init_dictionary(schema_name=None):
    """
    初始化字典配置
    :return:
    """
    try:
        if is_tenants_mode():
            from django_tenants.utils import tenant_context
            for tenant in get_tenant_model().objects.filter(schema_name=schema_name):
                with tenant_context(tenant):
                    settings.DICTIONARY_CONFIG[connection.tenant.schema_name] = _get_all_dictionary()
        else:
            settings.DICTIONARY_CONFIG = _get_all_dictionary()
        print("初始化字典配置完成")
    except ProgrammingError as e:
        print("请先进行数据库迁移!")
    return


def init_system_config():
    """
    初始化系统配置
    :param name:
    :return:
    """
    try:

        if is_tenants_mode():
            from django_tenants.utils import tenant_context
            for tenant in get_tenant_model().objects.filter(schema_name=schema_name):
                with tenant_context(tenant):
                    settings.SYSTEM_CONFIG[connection.tenant.schema_name] = _get_all_system_config()
        else:
            settings.SYSTEM_CONFIG = _get_all_system_config()
        print("初始化系统配置完成")
    except ProgrammingError as e:
        print("请先进行数据库迁移!")
    return


def refresh_dictionary():
    """
    刷新字典配置
    :return:
    """
    if is_tenants_mode():
        with schema_context(connection.tenant.schema_name):
            settings.DICTIONARY_CONFIG[connection.tenant.schema_name] = _get_all_dictionary()
    else:
        settings.DICTIONARY_CONFIG = _get_all_dictionary()


def refresh_system_config():
    """
    刷新系统配置
    :return:
    """
    if is_tenants_mode():
        with schema_context(connection.tenant.schema_name):
            settings.SYSTEM_CONFIG[connection.tenant.schema_name] = _get_all_system_config()
    else:
        settings.SYSTEM_CONFIG = _get_all_system_config()


# ================================================= #
# ******************** 字典管理 ******************** #
# ================================================= #
def get_dictionary_config(schema_name=None):
    """
    获取字典所有配置
    :param schema_name: 对应字典配置的租户schema_name值
    :return:
    """
    if is_tenants_mode():
        dictionary_config = settings.DICTIONARY_CONFIG[schema_name or connection.tenant.schema_name]
    else:
        dictionary_config = settings.DICTIONARY_CONFIG
    return dictionary_config or {}


def get_dictionary_values(key, schema_name=None):
    """
    获取字典数据数组
    :param key: 对应字典配置的key值(字典编号)
    :param schema_name: 对应字典配置的租户schema_name值
    :return:
    """
    dictionary_config = get_dictionary_config(schema_name)
    return dictionary_config.get(key)


def get_dictionary_label(key, name, schema_name=None):
    """
    获取获取字典label值
    :param key: 字典管理中的key值(字典编号)
    :param name: 对应字典配置的value值
    :param schema_name: 对应字典配置的租户schema_name值
    :return:
    """
    children = get_dictionary_values(key, schema_name) or []
    for ele in children:
        if ele.get("value") == str(name):
            return ele.get("label")
    return ""


# ================================================= #
# ******************** 系统配置 ******************** #
# ================================================= #
def get_system_config(schema_name=None):
    """
    获取系统配置中所有配置
    1.只传父级的key，返回全部子级，{ "父级key.子级key" : "值" }
    2."父级key.子级key"，返回子级值
    :param schema_name: 对应字典配置的租户schema_name值
    :return:
    """
    if is_tenants_mode():
        dictionary_config = settings.SYSTEM_CONFIG[schema_name or connection.tenant.schema_name]
    else:
        dictionary_config = settings.SYSTEM_CONFIG
    return dictionary_config or {}


def get_system_config_values(key, schema_name=None):
    """
    获取系统配置数据数组
    :param key: 对应系统配置的key值(字典编号)
    :param schema_name: 对应系统配置的租户schema_name值
    :return:
    """
    system_config = get_system_config(schema_name)
    return system_config.get(key)


def get_system_config_label(key, name, schema_name=None):
    """
    获取获取系统配置label值
    :param key: 系统配置中的key值(字典编号)
    :param name: 对应系统配置的value值
    :param schema_name: 对应系统配置的租户schema_name值
    :return:
    """
    children = get_system_config_values(key, schema_name) or []
    for ele in children:
        if ele.get("value") == str(name):
            return ele.get("label")
    return ""