package piwik

import (
	"log"
	"net/http"

	"encoding/json"
	"os"
)

type PiwikHandler struct {
	fileServer   http.Handler
	siteStorage  SiteStorageInterface
	visitStorage VisitStorageInterface
}

func NewPiwikHandler(ss SiteStorageInterface, vs VisitStorageInterface) *PiwikHandler {
	return &PiwikHandler{
		fileServer:   http.FileServer(http.Dir("assets")),
		siteStorage:  ss,
		visitStorage: vs,
	}
}

func (h *PiwikHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	switch r.Method {
	case http.MethodGet:
		switch r.URL.Path {
		case "/piwik.php":
			h.handlePiwik(w, r)
		default:
			h.fileServer.ServeHTTP(w, r)
		}

	default:
		http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
	}
}

func (h *PiwikHandler) handlePiwik(w http.ResponseWriter, r *http.Request) {
	pr := ParseV3(r)
	v := &Visit{
		SiteID:                  pr.SiteID,
		URL:                     pr.URL,
		ActionName:              pr.ActionName,
		VisitorID:               pr.VisitorID,
		Referrer:                pr.Referrer,
		CustomVars:              pr.CustomVars,
		VisitsCount:             pr.VisitsCount,
		ViewTime:                pr.ViewTime,
		VisitorFirstVisitTime:   pr.VisitorFirstVisitTime,
		CampaignName:            pr.CampaignName,
		CampaignKeyword:         pr.CampaignKeyword,
		Resolution:              pr.Resolution,
		LocalHour:               pr.LocalHour,
		LocalMinute:             pr.LocalMinute,
		LocalSeconds:            pr.LocalSeconds,
		LocalTimeUTC:            pr.LocalTimeUTC,
		Plugins:                 pr.Plugins,
		SupportsCookies:         pr.SupportsCookies,
		UserAgent:               pr.UserAgent,
		Language:                pr.Language,
		UserID:                  pr.UserID,
		CustomUserID:            pr.CustomUserID,
		NewVisit:                pr.NewVisit,
		PageCustomVars:          pr.PageCustomVars,
		Link:                    pr.Link,
		Download:                pr.Download,
		Search:                  pr.Search,
		SearchCategory:          pr.SearchCategory,
		SearchCount:             pr.SearchCount,
		PageViewID:              pr.PageViewID,
		GoalID:                  pr.GoalID,
		Revenue:                 pr.Revenue,
		GenerationTime:          pr.GenerationTime,
		Characterset:            pr.Characterset,
		EventCategory:           pr.EventCategory,
		EventAction:             pr.EventAction,
		EventName:               pr.EventName,
		EventValue:              pr.EventValue,
		ContentName:             pr.ContentName,
		ContentPiece:            pr.ContentPiece,
		ContentTarget:           pr.ContentTarget,
		ContentInteraction:      pr.ContentInteraction,
		ECommerceID:             pr.ECommerceID,
		ECommerceItems:          pr.ECommerceItems,
		ECommerceSubTotal:       pr.ECommerceSubTotal,
		ECommerceTax:            pr.ECommerceTax,
		ECommerceShipping:       pr.ECommerceShipping,
		ECommerceDiscount:       pr.ECommerceDiscount,
		ECommerceTime:           pr.ECommerceTime,
		TokenAuth:               pr.TokenAuth,
		CustomIP:                pr.CustomIP,
		CustomDateTime:          pr.CustomDateTime,
		CustomCountry:           pr.CustomCountry,
		CustomRegion:            pr.CustomRegion,
		CustomCity:              pr.CustomCity,
		CustomLatitude:          pr.CustomLatitude,
		CustomLongitude:         pr.CustomLongitude,
		MediaID:                 pr.MediaID,
		MediaTitle:              pr.MediaTitle,
		MediaResource:           pr.MediaResource,
		MediaType:               pr.MediaType,
		MediaPlayerName:         pr.MediaPlayerName,
		MediaSecondsPlayingTime: pr.MediaSecondsPlayingTime,
		MediaLength:             pr.MediaLength,
		MediaProgress:           pr.MediaProgress,
		MediaTimeUntilPlay:      pr.MediaTimeUntilPlay,
		MediaWidth:              pr.MediaWidth,
		MediaHeight:             pr.MediaHeight,
		MediaFullscreen:         pr.MediaFullscreen,
	}
	if e := h.visitStorage.Add(v); e != nil {
		log.Println(e)
	}
	if pr.SendImage == "0" {
		w.WriteHeader(204)
	}
	json.NewEncoder(os.Stdout).Encode(v)
}