package main

import (
	"net/http"
	"strconv"
)

func handleListRuns(executor *Executor) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		dagName := r.URL.Query().Get("dag")
		limit, _ := strconv.Atoi(r.URL.Query().Get("limit"))
		offset, _ := strconv.Atoi(r.URL.Query().Get("offset"))
		if limit <= 0 || limit > 100 {
			limit = 20
		}
		if offset < 0 {
			offset = 0
		}

		runs, total, err := executor.store.ListRuns(dagName, limit, offset)
		if err != nil {
			writeError(w, http.StatusInternalServerError, err.Error())
			return
		}

		writeJSON(w, http.StatusOK, map[string]interface{}{
			"runs":   runs,
			"total":  total,
			"limit":  limit,
			"offset": offset,
		})
	}
}

func handleGetRun(executor *Executor) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		id := r.PathValue("id")
		run, err := executor.store.GetRun(id)
		if err != nil {
			writeError(w, http.StatusInternalServerError, err.Error())
			return
		}
		if run == nil {
			writeError(w, http.StatusNotFound, "run not found")
			return
		}

		steps, err := executor.store.ListStepResults(id)
		if err != nil {
			writeError(w, http.StatusInternalServerError, err.Error())
			return
		}

		writeJSON(w, http.StatusOK, map[string]interface{}{
			"run":   run,
			"steps": steps,
		})
	}
}