// Copyright 2023 EMQ Technologies Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package server

import (
	"bytes"
	"fmt"
	"net/http"
	"net/http/httptest"
	"os"
	"path"
	"testing"

	"github.com/gorilla/mux"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/suite"

	"github.com/lf-edge/ekuiper/internal/conf"
	"github.com/lf-edge/ekuiper/internal/meta"
)

type MetaTestSuite struct {
	suite.Suite
	m metaComp
	r *mux.Router
}

func (suite *MetaTestSuite) SetupTest() {
	suite.m = metaComp{}
	suite.r = mux.NewRouter()
	suite.m.rest(suite.r)
	meta.InitYamlConfigManager()
	confDir, err := conf.GetConfLoc()
	if err != nil {
		fmt.Println(err)
	}
	if err := meta.ReadSinkMetaFile(path.Join(confDir, "sinks", "mqtt.json"), true); nil != err {
		fmt.Println(err)
	}
	if err := meta.ReadSourceMetaFile(path.Join(confDir, "mqtt_source.json"), true, false); nil != err {
		fmt.Println(err)
	}
}

func (suite *MetaTestSuite) TestSinksMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sinks", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestNewSinkMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sinks/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestFunctionsMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/functions", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestOperatorsMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/operators", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestSourcesMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sources", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestConnectionsMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/connections", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestSourceMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sources/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestConnectionMetaHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/connections/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestSourceConfHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sources/yaml/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestConnectionConfHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/connections/yaml/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestSinkConfHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/sinks/yaml/mqtt", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func (suite *MetaTestSuite) TestSourceConfKeyHandler() {
	req, _ := http.NewRequest(http.MethodPut, "/metadata/sources/mqtt/confKeys/test", bytes.NewBufferString(`{"qos": 0, "server": "tcp://10.211.55.6:1883"}`))
	w := httptest.NewRecorder()
	DataDir, _ := conf.GetDataLoc()
	os.MkdirAll(path.Join(DataDir, "sources"), 0o755)
	if _, err := os.Create(path.Join(DataDir, "sources", "mqtt.yaml")); err != nil {
		fmt.Println(err)
	}
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
	os.Remove(path.Join(DataDir, "sources", "mqtt.yaml"))
	os.Remove(path.Join(DataDir, "sources"))
}

func (suite *MetaTestSuite) TestConnectionConfKeyHandler() {
	req, _ := http.NewRequest(http.MethodPut, "/metadata/connections/mqtt/confKeys/test", bytes.NewBufferString(`{"qos": 0, "server": "tcp://10.211.55.6:1883"}`))
	w := httptest.NewRecorder()
	DataDir, _ := conf.GetDataLoc()
	os.MkdirAll(path.Join(DataDir, "connections"), 0o755)
	if _, err := os.Create(path.Join(DataDir, "connections", "connection.yaml")); err != nil {
		fmt.Println(err)
	}
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
	os.Remove(path.Join(DataDir, "connections", "connection.yaml"))
	os.Remove(path.Join(DataDir, "connections"))
}

func (suite *MetaTestSuite) TestSinkConfKeyHandler() {
	req, _ := http.NewRequest(http.MethodPut, "/metadata/sinks/mqtt/confKeys/test", bytes.NewBufferString(`{"qos": 0, "server": "tcp://10.211.55.6:1883"}`))
	DataDir, _ := conf.GetDataLoc()
	os.MkdirAll(path.Join(DataDir, "sinks"), 0o755)
	if _, err := os.Create(path.Join(DataDir, "sinks", "mqtt.yaml")); err != nil {
		fmt.Println(err)
	}
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
	os.Remove(path.Join(DataDir, "sinks", "mqtt.yaml"))
	os.Remove(path.Join(DataDir, "sinks"))
}

func (suite *MetaTestSuite) TestResourcesHandler() {
	req, _ := http.NewRequest(http.MethodGet, "/metadata/resources", bytes.NewBufferString("any"))
	w := httptest.NewRecorder()
	suite.r.ServeHTTP(w, req)
	assert.Equal(suite.T(), http.StatusOK, w.Code)
}

func TestMetaTestSuite(t *testing.T) {
	suite.Run(t, new(MetaTestSuite))
}