from fastapi import APIRouter, Depends, HTTPException
from fastapi.responses import JSONResponse

from api.contracts.task_schemas import (
    BrowserTaskAcceptedResponse,
    BrowserTaskHistoryResponse,
    BrowserTaskRequest,
    BrowserTaskResultResponse,
    BrowserTaskStatusResponse,
)
from api.mappers.task_record_mapper import TaskRecordMapper
from api.routes.dependencies import get_task_service
from api.services.protocols import TaskServiceProtocol

router = APIRouter(prefix="/api/browser", tags=["browser-tasks"])


@router.post("/tasks", response_model=BrowserTaskAcceptedResponse, status_code=202)
async def create_task(
        payload: BrowserTaskRequest,
        service: TaskServiceProtocol = Depends(get_task_service),
) -> BrowserTaskAcceptedResponse:
    rec = await service.submit_task(task=payload.task.strip(), timeout=payload.timeout, metadata=payload.metadata)
    return TaskRecordMapper.to_task_accepted(rec)


@router.get("/tasks/{task_id}", response_model=BrowserTaskStatusResponse)
async def get_task_status(task_id: str, service: TaskServiceProtocol = Depends(get_task_service)) -> BrowserTaskStatusResponse:
    rec = await service.get_task(task_id)
    if rec is None:
        raise HTTPException(status_code=404, detail="Task not found")
    return TaskRecordMapper.to_task_status(rec)


@router.get("/tasks/{task_id}/result", response_model=BrowserTaskResultResponse)
async def get_task_result(
        task_id: str,
        service: TaskServiceProtocol = Depends(get_task_service),
) -> JSONResponse | BrowserTaskResultResponse:
    rec = await service.get_task(task_id)
    if rec is None:
        raise HTTPException(status_code=404, detail="Task not found")

    if TaskRecordMapper.is_active_status(rec.status):
        pending = TaskRecordMapper.to_pending_task_result(rec)
        return JSONResponse(status_code=202, content=pending.model_dump(mode="json"))

    return TaskRecordMapper.to_task_result(rec)


@router.get("/tasks/{task_id}/history", response_model=BrowserTaskHistoryResponse)
async def get_task_history(
        task_id: str,
        service: TaskServiceProtocol = Depends(get_task_service),
) -> JSONResponse | BrowserTaskHistoryResponse:
    rec = await service.get_task(task_id)
    if rec is None:
        raise HTTPException(status_code=404, detail="Task not found")

    if TaskRecordMapper.is_active_status(rec.status):
        pending = TaskRecordMapper.to_pending_task_history(rec)
        return JSONResponse(status_code=202, content=pending.model_dump(mode="json"))

    return TaskRecordMapper.to_task_history(rec)