from datetime import datetime
from typing import TYPE_CHECKING

from pydantic import BaseModel, Field

from core_shared import JSONValue

if TYPE_CHECKING:
    from app.db.models import ToolBinding, ToolDefinition, ToolVersion


class ToolCreateRequest(BaseModel):
    tenant_id: str
    plugin_id: str | None = None
    code: str
    name: str
    tool_type: str
    description: str | None = None


class ToolResponse(BaseModel):
    id: str
    tenant_id: str
    plugin_id: str | None = None
    code: str
    name: str
    tool_type: str
    description: str | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "ToolDefinition") -> "ToolResponse":
        return cls.model_validate(entity, from_attributes=True)


class ToolVersionCreateRequest(BaseModel):
    tenant_id: str
    tool_id: str
    input_schema_json: dict[str, JSONValue] = Field(default_factory=dict)
    output_schema_json: dict[str, JSONValue] = Field(default_factory=dict)
    invoke_config_json: dict[str, JSONValue] = Field(default_factory=dict)
    timeout_ms: int | None = None
    retry_policy_json: dict[str, JSONValue] = Field(default_factory=dict)


class ToolVersionResponse(BaseModel):
    id: str
    tenant_id: str
    tool_id: str
    version_no: int
    input_schema_json: dict[str, JSONValue] | None = None
    output_schema_json: dict[str, JSONValue] | None = None
    invoke_config_json: dict[str, JSONValue] | None = None
    timeout_ms: int | None = None
    retry_policy_json: dict[str, JSONValue] | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "ToolVersion") -> "ToolVersionResponse":
        return cls.model_validate(entity, from_attributes=True)


class ToolBindingCreateRequest(BaseModel):
    tenant_id: str
    app_id: str
    tool_version_id: str
    credential_id: str | None = None
    binding_scope: str = "app"
    enabled: bool = True
    config_json: dict[str, JSONValue] = Field(default_factory=dict)


class ToolBindingResponse(BaseModel):
    id: str
    tenant_id: str
    app_id: str
    tool_version_id: str
    credential_id: str | None = None
    binding_scope: str
    enabled: bool
    config_json: dict[str, JSONValue] | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "ToolBinding") -> "ToolBindingResponse":
        return cls.model_validate(entity, from_attributes=True)