package test

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"testing"

	"github.com/jinzhu/gorm"
	_ "github.com/jinzhu/gorm/dialects/postgres"
	"github.com/stretchr/testify/assert"
	"goji.io"

	libconfig "dev.sum7.eu/sum7/warehost/config"
	libapi "dev.sum7.eu/sum7/warehost/lib/api"
	log "dev.sum7.eu/sum7/warehost/lib/log"
	libsession "dev.sum7.eu/sum7/warehost/lib/session"
)

//Init to initialisieren a API
func Init(t *testing.T) (assertion *assert.Assertions, dbconnection *gorm.DB, router *goji.Mux) {
	assertion = assert.New(t)
	libconfig.ReadConfigFile(os.Getenv("GOPATH") + "/src/dev.sum7.eu/sum7/warehost/cmd/warehost/config.yml.example")
	log.NewLogger(libconfig.Data.Log.Path)

	// Session mgmt
	libsession.Init()
	go libsession.Stop()

	// Database
	dbconnection, err := gorm.Open("postgres", libconfig.Data.Database)
	assertion.NoError(err)

	dbconnection.Callback().Create().Remove("gorm:update_time_stamp")
	dbconnection.Callback().Update().Remove("gorm:update_time_stamp")
	dbconnection.SingularTable(true)
	dbconnection.LogMode(libconfig.Data.DatabaseDebug)

	router = goji.NewMux()
	return
}

// Request a easy manager to test REST-API
type Request struct {
	req     *http.Request
	cookies []*http.Cookie
	router  *goji.Mux
}

// NewSession to get a new easy manager
func NewSession(router *goji.Mux) *Request {
	return &Request{router: router}
}

// JSONRequest send request to router
func (r *Request) JSONRequest(method string, url string, body interface{}) (jsonResult libapi.JSONResult, res *http.Response) {
	jsonObj, _ := json.Marshal(body)
	req, _ := http.NewRequest(method, url, bytes.NewReader(jsonObj))
	req.Header.Set("Content-Type", "application/json")
	for _, c := range r.cookies {
		req.AddCookie(c)
	}

	w := httptest.NewRecorder()
	r.router.ServeHTTP(w, req)
	res = w.Result()
	cookies := res.Cookies()
	if len(cookies) > 0 {
		r.cookies = cookies
	}
	json.NewDecoder(w.Body).Decode(&jsonResult)
	return
}

// Clean to clean the current session
func (r *Request) Clean() {
	r.cookies = nil
}