import os
import django

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'core.settings')
django.setup()

from users.models import Permission, Role, RolePermission

def seed():
    print("--- 正在初始化预设角色与页面权限数据 ---")

    # 1. 预设角色
    roles_data = [
        {"code": "ADMIN", "name": "管理员", "description": "系统超级管理员", "is_system": True},
        {"code": "USER", "name": "普通用户", "description": "平台普通注册用户", "is_system": True},
        {"code": "ENTERPRISE", "name": "企业用户", "description": "已入驻企业账号及团队成员", "is_system": True},
        {"code": "OPC_USER", "name": "OPC 专家", "description": "已通过 OPC 认证的专家", "is_system": True},
    ]

    for rd in roles_data:
        Role.objects.update_or_create(code=rd["code"], defaults=rd)

    # 2. 预设页面菜单节点
    admin_menus = [
        "menu:business:tasks",
        "menu:business:tasks:publish",
        "menu:business:enterprises",
        "menu:account:users",
        "menu:business:certs",
        "menu:business:enterprise_certs",
        "menu:account:user_manage",
        "menu:account:roles",
        "menu:settings:announcements",
        "menu:settings:skills",
        "menu:business:models",
        "menu:business:screen",
    ]

    ent_menus = [
        "menu:ent:dashboard",
        "menu:ent:tasks",
        "menu:ent:tasks:create",
        "menu:ent:team",
        "menu:ent:opc_users",
        "menu:ent:invitations",
        "menu:ent:verification",
        "menu:ent:profile",
        "menu:ent:settings",
    ]

    user_menus = [
        "menu:user:dashboard",
        "menu:user:tasks",
        "menu:user:my_tasks",
        "menu:user:invitations",
        "menu:user:announcements",
        "menu:user:certification",
        "menu:user:profile",
        "menu:user:settings",
    ]

    all_menus = admin_menus + ent_menus + user_menus

    # Create root menus
    for menu_code in all_menus:
        parts = menu_code.split(":")
        for i in range(1, len(parts) + 1):
            parent_code = ":".join(parts[:i])
            Permission.objects.get_or_create(
                code=parent_code,
                defaults={"name": parent_code, "type": "MENU"}
            )

    # 3. 分配权限
    admin_role = Role.objects.get(code="ADMIN")
    ent_role = Role.objects.get(code="ENTERPRISE")
    user_role = Role.objects.get(code="USER")
    opc_role = Role.objects.get(code="OPC_USER")

    # Clear old menu permissions to reset cleanly
    RolePermission.objects.filter(permission__type='MENU').delete()
    
    def assign_perms(role, menu_list):
        perms_to_add = []
        for menu_code in menu_list:
            parts = menu_code.split(":")
            for i in range(1, len(parts) + 1):
                parent_code = ":".join(parts[:i])
                perms_to_add.append(parent_code)
                
        perms = Permission.objects.filter(code__in=perms_to_add)
        for p in perms:
            RolePermission.objects.get_or_create(role=role, permission=p)

    assign_perms(admin_role, admin_menus)
    assign_perms(ent_role, ent_menus)
    assign_perms(user_role, user_menus)
    assign_perms(opc_role, user_menus)

    print("角色与页面权限预设完成！")

if __name__ == '__main__':
    seed()