"""
插件运行日志 API 端点

提供 run 状态查询、事件列表、artifact 元数据和下载。
"""
import os
from pathlib import Path
from fastapi import APIRouter, HTTPException
from fastapi.responses import FileResponse

from app.plugins.run_log import get_run_log_service

router = APIRouter()


@router.get("/{plugin_name}/runs/{run_id}")
async def get_run(plugin_name: str, run_id: str):
    """获取运行记录详情。"""
    service = get_run_log_service()
    run = service.get_run(run_id)
    if run is None:
        raise HTTPException(status_code=404, detail=f"运行记录不存在: {run_id}")
    if run.plugin_name != plugin_name:
        raise HTTPException(status_code=404, detail=f"运行记录不属于插件: {plugin_name}")
    return run.model_dump(mode="json")


@router.get("/{plugin_name}/runs/{run_id}/events")
async def list_run_events(plugin_name: str, run_id: str):
    """获取运行事件列表。"""
    service = get_run_log_service()
    run = service.get_run(run_id)
    if run is None:
        raise HTTPException(status_code=404, detail=f"运行记录不存在: {run_id}")
    if run.plugin_name != plugin_name:
        raise HTTPException(status_code=404, detail=f"运行记录不属于插件: {plugin_name}")
    events = service.list_events(run_id)
    return {"run_id": run_id, "events": [e.model_dump(mode="json") for e in events]}


@router.get("/{plugin_name}/runs/{run_id}/artifacts")
async def list_run_artifacts(plugin_name: str, run_id: str):
    """获取运行产物列表。"""
    service = get_run_log_service()
    run = service.get_run(run_id)
    if run is None:
        raise HTTPException(status_code=404, detail=f"运行记录不存在: {run_id}")
    if run.plugin_name != plugin_name:
        raise HTTPException(status_code=404, detail=f"运行记录不属于插件: {plugin_name}")
    artifacts = service.list_artifacts(run_id)
    return {"run_id": run_id, "artifacts": [a.model_dump(mode="json") for a in artifacts]}


@router.get("/{plugin_name}/runs/{run_id}/artifacts/{artifact_id}")
async def get_artifact_meta(plugin_name: str, run_id: str, artifact_id: str):
    """获取产物元数据。"""
    service = get_run_log_service()
    run = service.get_run(run_id)
    if run is None:
        raise HTTPException(status_code=404, detail=f"运行记录不存在: {run_id}")
    if run.plugin_name != plugin_name:
        raise HTTPException(status_code=404, detail=f"运行记录不属于插件: {plugin_name}")
    artifact = service.get_artifact(run_id, artifact_id)
    if artifact is None:
        raise HTTPException(status_code=404, detail=f"产物不存在: {artifact_id}")
    return artifact.model_dump(mode="json")


@router.get("/{plugin_name}/runs/{run_id}/artifacts/{artifact_id}/download")
async def download_artifact(plugin_name: str, run_id: str, artifact_id: str):
    """下载产物文件。"""
    service = get_run_log_service()
    run = service.get_run(run_id)
    if run is None:
        raise HTTPException(status_code=404, detail=f"运行记录不存在: {run_id}")
    if run.plugin_name != plugin_name:
        raise HTTPException(status_code=404, detail=f"运行记录不属于插件: {plugin_name}")
    artifact = service.get_artifact(run_id, artifact_id)
    if artifact is None:
        raise HTTPException(status_code=404, detail=f"产物不存在: {artifact_id}")

    try:
        file_path = service.get_artifact_path(run_id, artifact_id)
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))

    if file_path is None or not file_path.exists():
        raise HTTPException(status_code=404, detail="产物文件不存在")

    return FileResponse(
        path=str(file_path),
        filename=artifact.filename,
        media_type=artifact.media_type,
    )