package daemon

import (
	"context"
	"errors"
	"fmt"
	"net"
	"net/http"
	"strings"
	"time"

	"banger/internal/model"
	"banger/internal/paths"
	"banger/internal/webui"
)

func (d *Daemon) startWebServer() error {
	listenAddr := strings.TrimSpace(d.config.WebListenAddr)
	if listenAddr == "" {
		d.webURL = ""
		return nil
	}
	listener, err := net.Listen("tcp", listenAddr)
	if err != nil {
		if d.logger != nil {
			d.logger.Error("web ui listen failed", "addr", listenAddr, "error", err.Error())
		}
		return fmt.Errorf("web ui listen on %s: %w", listenAddr, err)
	}
	d.webListener = listener
	d.webURL = "http://" + listener.Addr().String()
	d.webServer = &http.Server{
		Handler:           webui.NewHandler(d),
		ReadHeaderTimeout: 5 * time.Second,
	}
	if d.logger != nil {
		d.logger.Info("web ui serving", "addr", listener.Addr().String(), "url", d.webURL)
	}
	go func() {
		err := d.webServer.Serve(listener)
		if err == nil || errors.Is(err, http.ErrServerClosed) {
			return
		}
		if d.logger != nil {
			d.logger.Error("web ui serve failed", "addr", listener.Addr().String(), "error", err.Error())
		}
	}()
	return nil
}

func (d *Daemon) Layout() paths.Layout {
	return d.layout
}

func (d *Daemon) Config() model.DaemonConfig {
	return d.config
}

func (d *Daemon) ListVMs(ctx context.Context) ([]model.VMRecord, error) {
	return d.store.ListVMs(ctx)
}

func (d *Daemon) ListImages(ctx context.Context) ([]model.Image, error) {
	return d.store.ListImages(ctx)
}