"""Workflow run response schemas for console APIs.

Workflow-run endpoints should document and serialize responses with the
Pydantic models in this module.
"""

from __future__ import annotations

from datetime import datetime
from enum import Enum
from typing import Any

from pydantic import AliasChoices, Field, field_validator
from sqlalchemy.orm import Session

from fields.base import ResponseModel, SessionResponseSource
from fields.end_user_fields import SimpleEndUser
from fields.member_fields import SimpleAccount
from libs.helper import to_timestamp


class WorkflowRunForLogResponse(ResponseModel):
    id: str
    version: str | None = None
    status: str | None = None
    triggered_from: str | None = None
    error: str | None = None
    elapsed_time: float | None = None
    total_tokens: int | None = None
    total_steps: int | None = None
    created_at: int | None = None
    finished_at: int | None = None
    exceptions_count: int | None = None

    @field_validator("status", mode="before")
    @classmethod
    def _normalize_status(cls, value: Any) -> str | None:
        if value is None or isinstance(value, str):
            return value
        return str(getattr(value, "value", value))

    @field_validator("created_at", "finished_at", mode="before")
    @classmethod
    def _normalize_timestamp(cls, value: datetime | int | None) -> int | None:
        return to_timestamp(value)


class WorkflowRunForArchivedLogResponse(ResponseModel):
    id: str
    status: str | None = None
    triggered_from: str | None = None
    elapsed_time: float | None = None
    total_tokens: int | None = None

    @field_validator("status", mode="before")
    @classmethod
    def _normalize_status(cls, value: Any) -> str | None:
        if value is None or isinstance(value, str):
            return value
        return str(value.value if isinstance(value, Enum) else value)


class WorkflowRunForListResponse(ResponseModel):
    id: str
    version: str | None = None
    status: str | None = None
    elapsed_time: float | None = None
    total_tokens: int | None = None
    total_steps: int | None = None
    created_by_account: SimpleAccount | None = None
    created_at: int | None = None
    finished_at: int | None = None
    exceptions_count: int | None = None
    retry_index: int | None = None

    @field_validator("status", mode="before")
    @classmethod
    def _normalize_status(cls, value: Any) -> str | None:
        if value is None or isinstance(value, str):
            return value
        return str(getattr(value, "value", value))

    @field_validator("created_at", "finished_at", mode="before")
    @classmethod
    def _normalize_timestamp(cls, value: datetime | int | None) -> int | None:
        return to_timestamp(value)


class AdvancedChatWorkflowRunForListResponse(WorkflowRunForListResponse):
    conversation_id: str | None = None
    message_id: str | None = None


class AdvancedChatWorkflowRunPaginationResponse(ResponseModel):
    limit: int
    has_more: bool
    data: list[AdvancedChatWorkflowRunForListResponse]


class WorkflowRunPaginationResponse(ResponseModel):
    limit: int
    has_more: bool
    data: list[WorkflowRunForListResponse]


class WorkflowRunCountResponse(ResponseModel):
    total: int
    running: int
    succeeded: int
    failed: int
    stopped: int
    partial_succeeded: int = Field(
        alias="partial_succeeded",
        validation_alias=AliasChoices("partial_succeeded", "partial-succeeded"),
    )


class WorkflowRunDetailResponse(ResponseModel):
    id: str
    version: str | None = None
    graph: Any = Field(validation_alias="graph_dict")
    inputs: Any = Field(validation_alias="inputs_dict")
    status: str | None = None
    outputs: Any = Field(validation_alias="outputs_dict")
    error: str | None = None
    elapsed_time: float | None = None
    total_tokens: int | None = None
    total_steps: int | None = None
    created_by_role: str | None = None
    created_by_account: SimpleAccount | None = None
    created_by_end_user: SimpleEndUser | None = None
    created_at: int | None = None
    finished_at: int | None = None
    exceptions_count: int | None = None

    @field_validator("status", mode="before")
    @classmethod
    def _normalize_status(cls, value: Any) -> str | None:
        if value is None or isinstance(value, str):
            return value
        return str(getattr(value, "value", value))

    @field_validator("created_at", "finished_at", mode="before")
    @classmethod
    def _normalize_timestamp(cls, value: datetime | int | None) -> int | None:
        return to_timestamp(value)


class WorkflowRunNodeExecutionResponse(ResponseModel):
    id: str
    index: int | None = None
    predecessor_node_id: str | None = None
    node_id: str | None = None
    node_type: str | None = None
    title: str | None = None
    inputs: Any = Field(default=None, validation_alias="inputs_dict")
    process_data: Any = Field(default=None, validation_alias="process_data_dict")
    outputs: Any = Field(default=None, validation_alias="outputs_dict")
    status: str | None = None
    error: str | None = None
    elapsed_time: float | None = None
    execution_metadata: Any = Field(default=None, validation_alias="execution_metadata_dict")
    extras: Any = None
    created_at: int | None = None
    created_by_role: str | None = None
    created_by_account: SimpleAccount | None = None
    created_by_end_user: SimpleEndUser | None = None
    finished_at: int | None = None
    inputs_truncated: bool | None = None
    outputs_truncated: bool | None = None
    process_data_truncated: bool | None = None
    retry_index: int | None = Field(default=None, exclude_if=lambda value: value is None)

    @field_validator("status", mode="before")
    @classmethod
    def _normalize_status(cls, value: Any) -> str | None:
        if value is None or isinstance(value, str):
            return value
        return str(getattr(value, "value", value))

    @field_validator("created_at", "finished_at", mode="before")
    @classmethod
    def _normalize_timestamp(cls, value: datetime | int | None) -> int | None:
        return to_timestamp(value)


class WorkflowRunResponseSource(SessionResponseSource[Any]):
    """Expose session-backed workflow-run accessors during response validation."""

    @property
    def created_by_account(self) -> Any:
        return self._source.created_by_account(self._session)

    @property
    def created_by_end_user(self) -> Any:
        return self._source.created_by_end_user(self._session)


def workflow_run_response_source(workflow_run: Any, *, session: Session) -> WorkflowRunResponseSource:
    return WorkflowRunResponseSource(workflow_run, session=session)


def workflow_run_pagination_response_source(pagination: Any, *, session: Session) -> dict[str, Any]:
    """Wrap each run in a pagination payload so list responses resolve accessors via the session."""
    return {
        "limit": pagination.limit,
        "has_more": pagination.has_more,
        "data": [workflow_run_response_source(run, session=session) for run in pagination.data],
    }


class WorkflowNodeExecutionResponseSource(SessionResponseSource[Any]):
    """Expose session-backed node-execution accessors during response validation."""

    @property
    def created_by_account(self) -> Any:
        return self._source.created_by_account(self._session)

    @property
    def created_by_end_user(self) -> Any:
        return self._source.created_by_end_user(self._session)


def node_execution_response_source(node_execution: Any, *, session: Session) -> WorkflowNodeExecutionResponseSource:
    return WorkflowNodeExecutionResponseSource(node_execution, session=session)


class WorkflowRunNodeExecutionListResponse(ResponseModel):
    data: list[WorkflowRunNodeExecutionResponse]