package profileHandler

import (
	"fmt"
	"runtime/debug"

	"gitea.cybertalant.ru/VisionCareerMiniapp/MiniappGoService/internal/application/constants"
	"gitea.cybertalant.ru/VisionCareerMiniapp/MiniappGoService/internal/application/types"
	"gitea.cybertalant.ru/VisionCareerMiniapp/MiniappGoService/internal/application/utils"
	tele "gopkg.in/telebot.v4"
)

func (t *handler) universalTextHandler(ctx tele.Context) error {
	op := "profileHandler/universalTextHandler"
	// Start recovering
	defer func() {
		if r := recover(); r != nil {
			t.logger.Error(fmt.Sprintf("%v - Panic recovered: %v\nStack trace:\n%s", op, r, debug.Stack()))
		}
	}()
	// Common variables
	msg := ""
	val := ctx.Text()
	needUpdateUser := true
	mainKeys := new(tele.ReplyMarkup)
	// Check user
	var id int64
	var username *string

	if ctx.Chat().Username == "" {
		username = nil
	} else {
		username = &ctx.Chat().Username
	}
	id = ctx.Chat().ID

	user, err := t.profileService.CheckUser(id, username)
	if err != nil {
		t.logger.Error(fmt.Sprintf("%v: %v", op, err.Error()))
		return nil
	}
	// Check active status and save current value
	if val == constants.ResetBotCommand {
		if user.ResumePath != nil {
			err := t.profileService.DeleteResume(*user.ResumePath)
			if err != nil {
				return ctx.Send(constants.ErrorResetBotMessage)
			}
		}
		user = &types.User{
			ID:             user.ID,
			Username:       user.Username,
			ActiveStatus:   constants.DefaultStatus,
			TargetRole:     nil,
			ResumePath:     nil,
			WorkExperience: nil,
			WorkFormat:     nil,
			SalaryRange:    nil,
		}
		msg = constants.SuccessResetBotMessage
	} else if val == constants.HelpBotCommand {
		needUpdateUser = false
		msg = constants.HelpBotMessage
	} else if (user.ActiveStatus == constants.DefaultStatus) && (val == constants.StartBotCommand) {
		user.ActiveStatus = constants.WaitPickJobOrMarketStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{ResizeKeyboard: true}
		jobSearchBtn := mainKeys.Text(constants.JobSearchBotButton)
		// TODO: marketAnalyticsBtn := mainKeys.Text(constants.MarketAnalyticsBotButton)
		mainKeys.Reply(
			mainKeys.Row(jobSearchBtn),
			// TODO: mainKeys.Row(marketAnalyticsBtn),
		)

		msg = constants.StartBotMessage
	} else if (user.ActiveStatus != constants.DefaultStatus) && (val == constants.StartBotCommand) {
		needUpdateUser = false
		msg = constants.SecondStartBotMessage
	} else if (user.ActiveStatus == constants.WaitPickJobOrMarketStatus) && (val == constants.JobSearchBotButton) {
		user.ActiveStatus = constants.WaitPickResumeStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{ResizeKeyboard: true}
		uploadResumeBtn := mainKeys.Text(constants.UploadResumeBotButton)
		skipBtn := mainKeys.Text(constants.SkipBotButton)
		mainKeys.Reply(
			mainKeys.Row(uploadResumeBtn),
			mainKeys.Row(skipBtn),
		)

		msg = constants.StartProfileCompletionBotMessage
	} else if (user.ActiveStatus == constants.WaitPickResumeStatus) && (val == constants.SkipBotButton) {
		user.ActiveStatus = constants.WaitAnswerQuestionsStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{ResizeKeyboard: true}
		answerQuestionsBtn := mainKeys.Text(constants.AnswerQuestionsBotButton)
		mainKeys.Reply(
			mainKeys.Row(answerQuestionsBtn),
		)

		msg = constants.SkipResumeBotMessage
	} else if (user.ActiveStatus == constants.WaitPickResumeStatus) && (val == constants.UploadResumeBotButton) {
		user.ActiveStatus = constants.WaitResumeStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.WaitResumeBotMessage
	} else if (user.ActiveStatus == constants.WaitResumeStatus) && (val == constants.UploadResumeBotButton) {
		needUpdateUser = false
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.WaitResumeBotMessage
	} else if (user.ActiveStatus == constants.WaitAnswerQuestionsStatus) && (val == constants.AnswerQuestionsBotButton) {
		user.ActiveStatus = constants.WaitWorkFormatStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{ResizeKeyboard: true}
		remoteBtn := mainKeys.Text(constants.RemoteWorkFormat.String())
		hybridBtn := mainKeys.Text(constants.HybridWorkFormat.String())
		onSiteBtn := mainKeys.Text(constants.OnSiteWorkFormat.String())
		defaultBtn := mainKeys.Text(constants.DefaultWorkFormat.String())
		mainKeys.Reply(
			mainKeys.Row(remoteBtn),
			mainKeys.Row(hybridBtn),
			mainKeys.Row(onSiteBtn),
			mainKeys.Row(defaultBtn),
		)

		msg = constants.StartAnswerQuestionsBotMessage
	} else if user.ActiveStatus == constants.WaitWorkFormatStatus && constants.WorkFormat(val).Valid() {
		wf := constants.WorkFormat(val)
		user.WorkFormat = &wf
		user.ActiveStatus = constants.WaitTargetRoleStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.AcceptWorkFormatBotMessage
	} else if user.ActiveStatus == constants.WaitTargetRoleStatus {
		user.TargetRole = &val
		user.ActiveStatus = constants.WaitSalaryRangeStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{ResizeKeyboard: true}
		firstStepBtn := mainKeys.Text(constants.FirstStepSalaryRange.String())
		secondStepBtn := mainKeys.Text(constants.SecondStepSalaryRange.String())
		thirdStepBtn := mainKeys.Text(constants.ThirdStepSalaryRange.String())
		fourthStepBtn := mainKeys.Text(constants.FourthStepSalaryRange.String())
		defaultStepBtn := mainKeys.Text(constants.DefaultSalaryRange.String())
		mainKeys.Reply(
			mainKeys.Row(firstStepBtn),
			mainKeys.Row(secondStepBtn),
			mainKeys.Row(thirdStepBtn),
			mainKeys.Row(fourthStepBtn),
			mainKeys.Row(defaultStepBtn),
		)

		msg = constants.AcceptTargetRoleBotMessage
	} else if user.ActiveStatus == constants.WaitSalaryRangeStatus && constants.SalaryRange(val).Valid() {
		sr := constants.SalaryRange(val)
		user.SalaryRange = &sr
		user.ActiveStatus = constants.WaitWorkExperienceStatus
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.AcceptSalaryRangeBotMessage
	} else if user.ActiveStatus == constants.WaitWorkExperienceStatus {
		user.WorkExperience = &val
		user.ActiveStatus = constants.FinishedStatus

		if !utils.ValidateWorkExperience(&val) {
			return ctx.Send(constants.InvalidWorkExperienceErrorBotMessage)
		}
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.FinishedBotMessage
	} else if val == constants.ShowProfileBotCommand && !utils.CheckProfileCompletion(user) {
		needUpdateUser = false
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.CanNotShowProfileBotMessage
	} else if val == constants.ShowProfileBotCommand && utils.CheckProfileCompletion(user) {
		needUpdateUser = false
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}
		var resume string

		if user.ResumePath == nil {
			resume = constants.ErrorEmoji
		} else {
			resume = constants.SuccessEmoji
		}

		msg = fmt.Sprintf(
			"<b>Резюме</b>: %v\n<b>Зарплатная вилка</b>: %v\n<b>Должность</b>: <i>%v</i>\n<b>Опыт работы</b>: <i>%v</i>\n<b>Формат работы</b>: %v\n",
			resume, user.SalaryRange, *user.TargetRole, *user.WorkExperience, user.WorkFormat,
		)
	} else if val == constants.ShowVacanciesBotCommand && !utils.CheckProfileCompletion(user) {
		needUpdateUser = false
		// Set menu
		mainKeys = &tele.ReplyMarkup{RemoveKeyboard: true}

		msg = constants.CanNotShowVacanciesBotMessage
	} else if val == constants.ShowVacanciesBotCommand && utils.CheckProfileCompletion(user) {
		vacancies, err := t.profileService.GetVacancies(user.ID)

		if err != nil {
			t.logger.Error(fmt.Sprintf("%v: %v", op, err.Error()))
			return ctx.Send(constants.GetVacanciesErrorBotMessage)
		} else if len(vacancies) == 0 {
			return ctx.Send(constants.NoVacanciesBotMessage)
		}

		for _, vacancy := range vacancies {
			_, err = t.bot.Send(
				&tele.Chat{ID: user.ID},
				vacancy,
				&tele.SendOptions{
					ParseMode: tele.ModeHTML,
				},
			)

			if err != nil {
				t.logger.Error(fmt.Sprintf("%v: %v", op, err.Error()))
			}
		}

		return nil
	} else {
		needUpdateUser = false
		msg = constants.UnknownCommandBotMessage
	}
	// Set new user data
	if needUpdateUser {
		err = t.profileService.UpdateUser(user)
		if err != nil {
			t.logger.Error(fmt.Sprintf("%v: %v", op, err.Error()))
			return ctx.Send(constants.UpdateUserErrorBotMessage)
		}
	}

	return ctx.Send(msg, mainKeys)
}