package api

import (
	"log"
	"encoding/json"
	"net/http"
	"regexp"
	"github.com/ian-kent/MailHog/mailhog"
	"github.com/ian-kent/MailHog/mailhog/storage"
	"github.com/ian-kent/MailHog/mailhog/http/handler"
)

type APIv1 struct {
	config *mailhog.Config
	exitChannel chan int
	server *http.Server
}

func CreateAPIv1(exitCh chan int, conf *mailhog.Config, server *http.Server) *APIv1 {
	log.Println("Creating API v1")
	apiv1 := &APIv1{
		config: conf,
		exitChannel: exitCh,
		server: server,
	}

	server.Handler.(*handler.RegexpHandler).HandleFunc(regexp.MustCompile("^/api/v1/messages$"), apiv1.messages)
	server.Handler.(*handler.RegexpHandler).HandleFunc(regexp.MustCompile("^/api/v1/messages/delete$"), apiv1.delete_all)
	server.Handler.(*handler.RegexpHandler).HandleFunc(regexp.MustCompile("^/api/v1/messages/([0-9a-f]+)/delete$"), apiv1.delete_one)

	return apiv1
}

func (apiv1 *APIv1) messages(w http.ResponseWriter, r *http.Request, route *handler.Route) {
	log.Println("[APIv1] GET /api/v1/messages")

	// TODO start, limit
	messages, _ := storage.List(apiv1.config, 0, 1000)
	bytes, _ := json.Marshal(messages)
	w.Header().Set("Content-Type", "text/json")
	w.Write(bytes)
}

func (apiv1 *APIv1) delete_all(w http.ResponseWriter, r *http.Request, route *handler.Route) {
	log.Println("[APIv1] POST /api/v1/messages/delete")

	w.Header().Set("Content-Type", "text/json")
	storage.DeleteAll(apiv1.config)
}

func (apiv1 *APIv1) delete_one(w http.ResponseWriter, r *http.Request, route *handler.Route) {
	match := route.Pattern.FindStringSubmatch(r.URL.Path)
	id := match[1]
	log.Printf("[APIv1] POST /api/v1/messages/%s/delete\n", id)

	w.Header().Set("Content-Type", "text/json")
	storage.DeleteOne(apiv1.config, id)
}