package main

import (
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"

	"gitlab.hamburg.ccc.de/ccchh/spaceapid/handlers"
	"gitlab.hamburg.ccc.de/ccchh/spaceapid/types"
	"gitlab.hamburg.ccc.de/ccchh/spaceapid/util"
)

func main() {
	log.Println("Reading configuration values")
	config := util.GetConfiguration()

	log.Println("Reading initial SpaceAPI response from", config.TemplatePath)
	spaceApiResponse := util.ParseTemplate(config.TemplatePath)

	// Merge old state if present
	util.MergeOldState(&spaceApiResponse)

	// Register signal handler
	sc := make(chan os.Signal, 1)
	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM)
	go func(ch chan os.Signal, resp *types.SpaceAPIResponseV14) {
		<-ch
		log.Println("Saving state and shutting down...")
		util.SaveCurrentState(*resp)
		os.Exit(0)
	}(sc, &spaceApiResponse)

	// Register HTTP handlers
	http.HandleFunc("/", handlers.Root(&spaceApiResponse))
	http.HandleFunc("/state/open", handlers.StateOpen(config.BAUsername, config.BAPassword, &spaceApiResponse))

	// Start webserver
	log.Println("Starting HTTP server...")
	log.Fatalln(http.ListenAndServe(":8080", nil))
}