# app/schemas/automation.py

from datetime import datetime
from typing import List, Optional, Dict, Any
from pydantic import BaseModel, Field
from app.models.enums import TaskStatus, ScenarioScope, ActionType

# ----------------------------
# Scenario Schemas
# ----------------------------

class ScenarioBase(BaseModel):
    title: str = Field(..., max_length=255, description="场景标题")
    trigger: Dict[str, Any] = Field(..., description="触发条件（事件/时间）")
    actions: List[Dict[str, Any]] = Field(default_factory=list, description="执行动作模板列表")
    notes: Optional[str] = Field(None, description="备注")
    is_global: bool = Field(True, description="是否全局场景")
    owner_user_id: Optional[str] = Field(None, max_length=64, description="归属用户ID（非全局时有效）")
    enabled: bool = Field(True, description="是否启用")
    scope: ScenarioScope = Field(ScenarioScope.ALL, description="作用角色范围")


class ScenarioCreate(ScenarioBase):
    pass


class ScenarioUpdate(BaseModel):
    id: int = Field(..., description="场景ID")
    title: Optional[str] = Field(None, max_length=255)
    trigger: Optional[Dict[str, Any]] = None
    actions: Optional[List[Dict[str, Any]]] = None
    notes: Optional[str] = None
    is_global: Optional[bool] = None
    owner_user_id: Optional[str] = Field(None, max_length=64)
    enabled: Optional[bool] = None
    scope: Optional[ScenarioScope] = None

    # model_config = {"extra": "forbid"}  # 禁止传入未定义字段


class ScenarioCopy(BaseModel):
    id: int = Field(..., description="场景ID")
    # model_config = {"extra": "forbid"}  # 禁止传入未定义字段


class ScenarioRead(ScenarioBase):
    id: int
    created_at: datetime
    updated_at: datetime

    model_config = {"from_attributes": True}


# ----------------------------
# Task Schemas
# ----------------------------

class TaskBase(BaseModel):
    title: str = Field(..., max_length=255, description="待办标题")
    # actions: List[Dict[str, Any]] = Field(default_factory=list, description="动作列表（动态组件渲染用）")
    event_data: Optional[Dict[str, Any]] = Field(default_factory=dict, description="事件数据")
    notes: Optional[str] = Field(None, description="备注")
    reason: Optional[str] = Field(None, description="触发原因")
    
    # 关联字段
    source_scenario_id: Optional[int] = Field(None, description="来源场景ID")
    owner_user_id: Optional[str] = Field(None, max_length=64, description="归属用户ID")
    
    # 分配与状态
    assignee_user_id: Optional[str] = Field(None, max_length=64, description="指派人用户ID")
    assignee_username: Optional[str] = Field(None, max_length=64, description="指派人用户名")
    status: TaskStatus = Field(TaskStatus.PENDING, description="任务状态")
    
    # 自动化控制
    due_at: Optional[datetime] = Field(None, description="截止时间")
    auto_closeable: bool = Field(True, description="是否允许自动消除")
    closed_by: Optional[str] = Field(None, max_length=32, description="关闭方式: manual/auto/expired")


class TaskCreate(TaskBase):
    pass


class TaskUpdate(BaseModel):
    title: Optional[str] = Field(None, max_length=255)
    content: Optional[List[Dict[str, Any]]] = None
    notes: Optional[str] = None
    source_scenario_id: Optional[int] = None
    related_order_id: Optional[str] = Field(None, max_length=64)
    related_customer_id: Optional[str] = Field(None, max_length=64)
    group_id: Optional[str] = Field(None, max_length=64)
    assignee_user_id: Optional[str] = Field(None, max_length=64)
    assignee_username: Optional[str] = Field(None, max_length=64)
    status: Optional[TaskStatus] = None
    due_at: Optional[datetime] = None
    auto_closeable: Optional[bool] = None
    closed_by: Optional[str] = Field(None, max_length=32)
    completed_at: Optional[datetime] = None

    # model_config = {"extra": "forbid"}


class TaskRead(TaskBase):
    id: int
    created_at: datetime
    updated_at: datetime
    completed_at: Optional[datetime] = None

    model_config = {"from_attributes": True}


# ----------------------------
# Action Schemas
# ----------------------------

class ActionBase(BaseModel):
    type: Optional[ActionType] = Field(None, description="操作类型")
    detail: Dict[str, Any] = Field(default_factory=dict, description="操作详情")
    done: bool = Field(False, description="是否已完成")
    done_at: Optional[datetime] = Field(None, description="完成时间")
    result: Dict[str, Any] = Field(default_factory=dict, description="操作结果")
    userid: Optional[str] = Field(None, max_length=64, description="操作用户ID")
    username: Optional[str] = Field(None, max_length=64, description="操作用户名称")
    notes: Optional[str] = Field(None, description="操作备注")
    task_id: int = Field(..., description="所属任务ID")
    action_template_id: Optional[str] = Field(None, max_length=64, description="操作模板ID")


class ActionCreate(ActionBase):
    pass


class ActionUpdate(BaseModel):
    type: Optional[ActionType] = None
    detail: Optional[Dict[str, Any]] = None
    done: Optional[bool] = None
    done_at: Optional[datetime] = None
    result: Optional[Dict[str, Any]] = None
    userid: Optional[str] = Field(None, max_length=64)
    username: Optional[str] = Field(None, max_length=64)
    notes: Optional[str] = None
    task_id: Optional[int] = None
    action_template_id: Optional[str] = Field(None, max_length=64)

    model_config = {"extra": "forbid"}


class ActionRead(ActionBase):
    id: int
    created_at: datetime
    updated_at: datetime

    model_config = {"from_attributes": True}

class NotifyAction(BaseModel):
    platform: str = Field(..., description="平台类型")
    webhook_url: str = Field(..., description="Webhook URL")
    template: str = Field(..., description="模板内容")
    need_at: bool = Field(False, description="是否需要@用户")

    __meta_mapping__ = {
        "template": {"type": "text"}
    }