package handler

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
	"time"

	"git.kundeng.us/phoenix/textsender-models/pkg/contact"
	"git.kundeng.us/phoenix/textsender-models/pkg/message"
	"git.kundeng.us/phoenix/textsender-models/pkg/message/scheduling"
	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"

	"git.kundeng.us/phoenix/textsender-api/internal/handler/endpoint"
	"git.kundeng.us/phoenix/textsender-api/internal/store/mock"
)

var (
	recipientId        = uuid.New()
	messageId          = uuid.New()
	scheduledMessageId = uuid.New()
	testUserId         = uuid.New()
)

type CreateScheduledMessageEventRequest struct {
	RecipientId        uuid.UUID `json:"recipient_id"`
	MessageId          uuid.UUID `json:"message_id"`
	ScheduledMessageId uuid.UUID `json:"scheduled_message_id"`
}

func TestCreateScheduledMessageEventWithMock(t *testing.T) {
	now := time.Now()

	mockStore := mock.NewMockScheduledMessageEventStore()
	contactStore := mock.NewMockContactStore()
	messageStore := mock.NewMockMessageStore()
	schMsgStore := mock.NewMockScheduledMessageStore()

	handler := NewScheduledMessageEventHandler(mockStore, schMsgStore)

	recipientId := uuid.New()
	messageId := uuid.New()
	scheduledMessageId := uuid.New()
	testUserId := uuid.New()

	con := testContact(recipientId, testUserId)
	msg := testMessage(messageId, testUserId)
	schMsg := testScheduledMessage(scheduledMessageId, testUserId, now)

	ctx := t.Context()

	if err := contactStore.CreateContact(ctx, &con); err != nil {
		assert.NoError(t, err, "Error creating contact: %v", err)
	} else if err = messageStore.CreateMessage(ctx, &msg); err != nil {
		assert.NoError(t, err, "Error creating message: %v", err)
	} else if err = schMsgStore.CreateScheduledMessage(ctx, &schMsg); err != nil {
		assert.NoError(t, err, "Error creating scheduled message: %v", err)
	}

	testReq := CreateScheduledMessageEventRequest{RecipientId: recipientId, MessageId: messageId, ScheduledMessageId: scheduledMessageId}
	jsonValue, _ := json.Marshal(testReq)

	req, _ := http.NewRequest("POST", endpoint.AddEventToScheduledMessageEndpoint, strings.NewReader(string(jsonValue)))
	rr := httptest.NewRecorder()

	handler.AddScheduledMessageEvent(rr, req)

	assert.Equal(t, http.StatusCreated, rr.Code)

	var response AddScheduledMessageEventResponse
	err := json.Unmarshal(rr.Body.Bytes(), &response)
	assert.NoError(t, err, "Error creating event %v", err)

	assert.NotEmpty(t, response.Data, "No event created")

	var event scheduling.ScheduledMessageEvent
	event = response.Data[0]

	assert.NotEmpty(t, event.Created, "Created date should not be empty")
}

func TestGetScheduledMessageEventWithMock(t *testing.T) {
	now := time.Now()

	contactStore := mock.NewMockContactStore()
	messageStore := mock.NewMockMessageStore()
	schMsgStore := mock.NewMockScheduledMessageStore()
	schMsgEventStore := mock.NewMockScheduledMessageEventStore()
	handler := NewScheduledMessageEventHandler(schMsgEventStore, schMsgStore)

	recipientId := uuid.New()
	messageId := uuid.New()
	scheduledMessageId := uuid.New()
	testUserId := uuid.New()

	con := testContact(recipientId, testUserId)
	msg := testMessage(messageId, testUserId)
	schMsg := testScheduledMessage(scheduledMessageId, testUserId, now)
	event := testScheduledMessageEvent(msg.Id, con.Id, schMsg.Id)

	ctx := t.Context()

	if err := contactStore.CreateContact(ctx, &con); err != nil {
		assert.NoError(t, err, "Error creating contact: %v", err)
	} else if err = messageStore.CreateMessage(ctx, &msg); err != nil {
		assert.NoError(t, err, "Error creating message: %v", err)
	} else if err = schMsgStore.CreateScheduledMessage(ctx, &schMsg); err != nil {
		assert.NoError(t, err, "Error creating scheduled message: %v", err)
	} else if err = schMsgEventStore.CreateScheduledMessageEvent(ctx, &event); err != nil {
		assert.NoError(t, err, "Error creating scheduled message event: %v", err)
	}

	url := fmt.Sprintf("%s?id=%s", endpoint.GetScheduledMessageEventEndpoint, event.Id.String())
	fmt.Println("Url:", url)
	req, _ := http.NewRequest("GET", url, nil)
	rr := httptest.NewRecorder()

	handler.GetScheduledMessageEvent(rr, req)

	assert.Equal(t, http.StatusOK, rr.Code)

	var response GetScheduledMessageEventResponse
	err := json.Unmarshal(rr.Body.Bytes(), &response)
	assert.NoError(t, err, "Error creating event %v", err)

	assert.NotEmpty(t, response.Data, "No event created")

	msgEvent := response.Data[0]

	assert.NotEmpty(t, msgEvent.Created, "Created date should not be empty")
}

func TestDeleteScheduledMessageEventWithMock(t *testing.T) {
	now := time.Now()
	contactStore := mock.NewMockContactStore()
	messageStore := mock.NewMockMessageStore()
	schMsgStore := mock.NewMockScheduledMessageStore()
	schMsgEventStore := mock.NewMockScheduledMessageEventStore()
	handler := NewScheduledMessageEventHandler(schMsgEventStore, schMsgStore)

	con := testContact(recipientId, testUserId)
	msg := testMessage(messageId, testUserId)
	schMsg := testScheduledMessage(scheduledMessageId, testUserId, now)
	event := testScheduledMessageEvent(msg.Id, con.Id, schMsg.Id)

	ctx := t.Context()

	if err := contactStore.CreateContact(ctx, &con); err != nil {
		assert.NoError(t, err, "Error creating contact: %v", err)
	} else if err = messageStore.CreateMessage(ctx, &msg); err != nil {
		assert.NoError(t, err, "Error creating message: %v", err)
	} else if err = schMsgStore.CreateScheduledMessage(ctx, &schMsg); err != nil {
		assert.NoError(t, err, "Error creating scheduled message: %v", err)
	} else if err = schMsgEventStore.CreateScheduledMessageEvent(ctx, &event); err != nil {
		assert.NoError(t, err, "Error creating scheduled message event: %v", err)
	}

	endpointValue := strings.Replace(endpoint.DeleteScheduledMessageEventEndpoint, "{id}", event.Id.String(), 1)
	req, _ := http.NewRequest("DELETE", endpointValue, nil)
	rr := httptest.NewRecorder()

	handler.DeleteScheduledMessageEvent(rr, req)

	assert.Equal(t, http.StatusOK, rr.Code)

	var response DeleteScheduledMessageEventResponse
	err := json.Unmarshal(rr.Body.Bytes(), &response)
	assert.NoError(t, err, "Error creating event %v", err)

	assert.NotEmpty(t, response.Data, "No event created")

	msgEvent := response.Data[0]

	assert.NotEmpty(t, msgEvent.Created, "Created date should not be empty")
}

func testContact(id uuid.UUID, userId uuid.UUID) contact.Contact {
	if id == uuid.Nil {
		return contact.Contact{Id: uuid.New(), PhoneNumber: "+10123456789", UserId: userId}
	} else {
		return contact.Contact{Id: id, PhoneNumber: "+10123456789", UserId: userId}
	}
}

func testMessage(id uuid.UUID, userId uuid.UUID) message.Message {
	if id == uuid.Nil {
		return message.Message{Id: uuid.New(), Content: "Oh how the mighty have fallen", UserId: userId}
	} else {
		return message.Message{Id: id, Content: "Oh how the mighty have fallen", UserId: userId}
	}
}

func testScheduledMessage(id uuid.UUID, userId uuid.UUID, now time.Time) scheduling.ScheduledMessage {
	if id == uuid.Nil {
		return scheduling.ScheduledMessage{Id: uuid.New(), UserId: userId, Scheduled: now.Add(20 * time.Minute), Status: scheduling.Pending}
	} else {
		return scheduling.ScheduledMessage{Id: id, UserId: userId, Scheduled: now.Add(20 * time.Minute), Status: scheduling.Pending}
	}
}

func testScheduledMessageEvent(messageId, recipientId, scheduledMessageId uuid.UUID) scheduling.ScheduledMessageEvent {
	return scheduling.ScheduledMessageEvent{MessageId: messageId, RecipientId: recipientId, ScheduledMessageId: scheduledMessageId}
}