package main

import (
	"encoding/json"
	"net/http"
)

type liveStreamAPIResponse struct {
	Enabled bool   `json:"enabled"`
	Success bool   `json:"success"`
	Error   string `json:"error,omitempty"`
}

func mountLiveStreamAPI(mux *http.ServeMux, hub *wsHub) {
	mux.HandleFunc("/api/live-stream", func(w http.ResponseWriter, r *http.Request) {
		switch r.Method {
		case http.MethodGet:
			serveLiveStreamGet(w, hub)
		case http.MethodPut:
			serveLiveStreamPut(w, r, hub)
		default:
			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		}
	})
}

func serveLiveStreamGet(w http.ResponseWriter, hub *wsHub) {
	enabled := false
	if hub != nil {
		enabled = hub.liveStreamEnabled()
	}
	writeJSON(w, http.StatusOK, liveStreamAPIResponse{Enabled: enabled, Success: true})
}

func serveLiveStreamPut(w http.ResponseWriter, r *http.Request, hub *wsHub) {
	var body struct {
		Enable bool `json:"enable"`
	}
	if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
		writeJSON(w, http.StatusBadRequest, liveStreamAPIResponse{Error: "invalid JSON"})
		return
	}

	if hub != nil {
		hub.patchLiveStream(body.Enable)
	}

	writeJSON(w, http.StatusOK, liveStreamAPIResponse{
		Enabled: body.Enable,
		Success: true,
	})
}