package server

import (
	"fmt"
	"log/slog"
	"net/http"
	"strconv"
)

func HandleSetParallelTasks(w http.ResponseWriter, r *http.Request) {
	err := r.ParseForm()
	if err != nil {
		http.Error(w, fmt.Sprintf("Parseing Form: %v", err), http.StatusBadRequest)
		return
	}
	parallelTasks, err := strconv.Atoi(r.FormValue("parallel_tasks"))
	if err != nil {
		http.Error(w, "Can't parse parallel_tasks: "+err.Error(), http.StatusBadRequest)
		return
	}

	worker := r.FormValue("worker")

	slog.Info("Got set Parallel Tasks", "parallel_tasks", parallelTasks, "worker", worker)

	if worker == "all" {
		_, err = db.Exec(r.Context(), "UPDATE workers SET parallel_tasks = $1", parallelTasks)
		if err != nil {
			http.Error(w, fmt.Sprintf("Setting Worker Parallel Tasks: %v", err), http.StatusInternalServerError)
			return
		}
	} else {
		_, err = db.Exec(r.Context(), "UPDATE workers SET parallel_tasks = $1 where id = $2", parallelTasks, worker)
		if err != nil {
			http.Error(w, fmt.Sprintf("Setting Worker Parallel Tasks: %v", err), http.StatusInternalServerError)
			return
		}
	}

	http.Redirect(w, r, r.Header.Get("Referer"), http.StatusFound)
}