package router_test

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

	"galaxy/model/rest"

	"galaxy/util"

	"galaxy/game/internal/router"

	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
)

func TestInit(t *testing.T) {
	root, cleanup := util.CreateWorkDir(t)
	defer cleanup()

	r := router.SetupRouter(newService(t, root))

	payload := generateInitRequest(10)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/admin/init", asBody(payload))
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusCreated, w.Code, w.Body)
	var initResponse rest.StateResponse
	assert.NoError(t, json.Unmarshal(w.Body.Bytes(), &initResponse))
	assert.Equal(t, payload.GameID, initResponse.ID, "engine must echo the orchestrator-supplied gameId")
}

func TestInitValidators(t *testing.T) {
	r := setupRouter()
	payload := generateInitRequest(9)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/admin/init", asBody(payload))
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code, w.Body)
}

func TestInitRejectsNilUUID(t *testing.T) {
	root, cleanup := util.CreateWorkDir(t)
	defer cleanup()

	r := router.SetupRouter(newService(t, root))

	payload := generateInitRequest(10)
	payload.GameID = uuid.Nil

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/admin/init", asBody(payload))
	r.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code, w.Body)
}

func TestInitRejectsExistingGameWithDifferentID(t *testing.T) {
	root, cleanup := util.CreateWorkDir(t)
	defer cleanup()

	r := router.SetupRouter(newService(t, root))

	first := generateInitRequest(10)
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/admin/init", asBody(first))
	r.ServeHTTP(w, req)
	assert.Equal(t, http.StatusCreated, w.Code, w.Body)

	second := generateInitRequest(10)
	second.GameID = uuid.New()
	w = httptest.NewRecorder()
	req, _ = http.NewRequest("POST", "/api/v1/admin/init", asBody(second))
	r.ServeHTTP(w, req)
	assert.Equal(t, http.StatusConflict, w.Code, w.Body)
}