from __future__ import annotations

from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware

from .models import ExecutionView, RunSummary, TaskDetail
from .real_runs import RunNotFound, agent_data_root, execution_view, list_runs, task_detail

app = FastAPI(title="Script Build Execution Observer", version="2.0.0")
app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://127.0.0.1:3008", "http://localhost:3008"],
    allow_methods=["GET"],
    allow_headers=["*"],
)


@app.get("/api/health")
def health() -> dict[str, str]:
    root = agent_data_root()
    return {
        "status": "ok" if root.exists() else "degraded",
        "data_mode": "persisted-real-run",
        "schema_version": "script-build-execution-view/v1",
        "agent_data_root": str(root),
    }


@app.get("/api/runs", response_model=list[RunSummary])
def runs() -> list[RunSummary]:
    return list_runs()


@app.get("/api/runs/{script_build_id}/execution", response_model=ExecutionView)
def execution(script_build_id: int) -> ExecutionView:
    try:
        return execution_view(script_build_id)
    except RunNotFound as exc:
        raise HTTPException(status_code=404, detail=str(exc)) from exc


@app.get("/api/runs/{script_build_id}/tasks/{task_id}", response_model=TaskDetail)
def detail(script_build_id: int, task_id: str) -> TaskDetail:
    try:
        return task_detail(script_build_id, task_id)
    except RunNotFound as exc:
        raise HTTPException(status_code=404, detail=str(exc)) from exc