package server

import (
	"fmt"
	"net/http"

	"forge.cadoles.com/arcad/arcast/pkg/network"
	"github.com/pkg/errors"
	"gitlab.com/wpetit/goweb/api"
	"gitlab.com/wpetit/goweb/logger"
)

type InfoResponse struct {
	IPs                     []string `json:"ips"`
	Port                    int      `json:"port"`
	TLSPort                 int      `json:"tlsPort"`
	InstanceID              string   `json:"instanceId"`
	AppsEnabled             bool     `json:"appsEnabled"`
	ServiceDiscoveryEnabled bool     `json:"serviceDiscoveryEnabled"`
}

func (s *Server) handleInfo(w http.ResponseWriter, r *http.Request) {
	ips, err := network.GetLANIPv4Addrs()
	if err != nil {
		logger.Error(r.Context(), "could not retrieve lan ip addresses", logger.CapturedE(errors.WithStack(err)))
		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
		return
	}

	api.DataResponse(w, http.StatusOK, &InfoResponse{
		IPs:                     ips,
		TLSPort:                 s.tlsPort,
		Port:                    s.port,
		InstanceID:              s.instanceID,
		AppsEnabled:             s.appsEnabled,
		ServiceDiscoveryEnabled: s.serviceDiscoveryEnabled,
	})
}

type CastRequest struct {
	URL string `json:"url" validate:"required"`
}

func (s *Server) handleCast(w http.ResponseWriter, r *http.Request) {
	req := &CastRequest{}
	if ok := api.Bind(w, r, req); !ok {
		return
	}

	if err := s.browser.Load(req.URL); err != nil {
		logger.Error(r.Context(), "could not load url", logger.CapturedE(errors.WithStack(err)))
		api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)

		return
	}

	http.Redirect(w, r, "/api/v1/status", http.StatusSeeOther)
}

func (s *Server) handleReset(w http.ResponseWriter, r *http.Request) {
	if err := s.resetBrowser(); err != nil {
		logger.Error(r.Context(), "could not unload url", logger.CapturedE(errors.WithStack(err)))
		api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)

		return
	}

	http.Redirect(w, r, "/api/v1/status", http.StatusSeeOther)
}

func (s *Server) resetBrowser() error {
	idleURL := fmt.Sprintf("http://localhost:%d", s.port)
	if err := s.browser.Reset(idleURL); err != nil {
		return errors.WithStack(err)
	}

	return nil
}

type StatusResponse struct {
	ID     string `json:"id"`
	URL    string `json:"url"`
	Status string `json:"status"`
	Title  string `json:"title"`
}

func (s *Server) handleStatus(w http.ResponseWriter, r *http.Request) {
	url, err := s.browser.URL()
	if err != nil {
		logger.Error(r.Context(), "could not retrieve browser url", logger.CapturedE(errors.WithStack(err)))
		api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)

		return
	}

	status, err := s.browser.Status()
	if err != nil {
		logger.Error(r.Context(), "could not retrieve browser status", logger.CapturedE(errors.WithStack(err)))
		api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)

		return
	}

	title, err := s.browser.Title()
	if err != nil {
		logger.Error(r.Context(), "could not retrieve browser page title", logger.CapturedE(errors.WithStack(err)))
		api.ErrorResponse(w, http.StatusInternalServerError, api.ErrCodeUnknownError, nil)

		return
	}

	api.DataResponse(w, http.StatusOK, &StatusResponse{
		ID:     s.instanceID,
		URL:    url,
		Status: status.String(),
		Title:  title,
	})
}