package repository

import (
	"fmt"
	"net/url"
	"regexp"
	"strconv"
	"strings"

	"github.com/emersion/go-imap/v2"
	"github.com/go-shiori/dom"
	"github.com/golang-module/carbon/v2"
	"github.com/jmoiron/sqlx"
	"github.com/spf13/viper"
	"golang.org/x/net/html"

	"git.amok.space/yevhen/resource-scraper/helper/parser"
	"git.amok.space/yevhen/resource-scraper/helper/sugar"
	"git.amok.space/yevhen/resource-scraper/internal/mail"
	_table "git.amok.space/yevhen/resource-scraper/pkg/repository/table"
	"git.amok.space/yevhen/resource-scraper/types/constant"
	"git.amok.space/yevhen/resource-scraper/types/model"
)

type ShareTheBrutality struct {
	scope        string
	EmailService mail.EmailService
	db           *sqlx.DB
}

func NewShareTheBrutalityRepository(db *sqlx.DB) *ShareTheBrutality {
	return &ShareTheBrutality{db: db, scope: constant.ScopeShareTheBrutality}
}

func (s *ShareTheBrutality) GetMail(email string) ([]model.ExternalSources, *mail.EmailService) {
	s.EmailService = mail.EmailService{
		User: email,
	}

	s.EmailService.Login()

	mailboxes := fmt.Sprintf("%s.mailboxes", s.scope)
	criteria := fmt.Sprintf("%s.search-criteria", s.scope)
	searchCriteria := &imap.SearchCriteria{
		Text: viper.GetStringSlice(criteria),
	}
	//now := carbon.Now()
	s.EmailService.ListMessages(viper.GetStringSlice(mailboxes), searchCriteria)
	//box.CreateMailbox("INBOX/Processed")
	//s.EmailService.CreateMailbox("Processed/Succeed")
	//s.EmailService.CreateMailbox("Processed/Failed")
	//s.EmailService.CreateMailbox("Processed/Suspicious")
	//s.EmailService.MailboxesList()

	entries := s.Processing(viper.GetStringMapString(fmt.Sprintf("%s.sender", s.scope)))

	return entries, &s.EmailService
}

func (s *ShareTheBrutality) Processing(sender map[string]string) []model.ExternalSources {
	columns := []string{"`type`", "type_id", "title", "type_subsection_id", "releaser", "created", "fingerprint"}
	entriesBatched := make([]model.ExternalSources, 0)
	if len(s.EmailService.Messages) == 0 {
		return entriesBatched
	}

	//tmpPath := viper.GetString(fmt.Sprintf("%s.storage.filepath", s.scope))
	dbType := viper.GetString(fmt.Sprintf("%s.db-type", s.scope))
	regexPatterns := viper.GetStringMapString(fmt.Sprintf("%s.regex", s.scope))
	topics := viper.GetStringMap(fmt.Sprintf("%s.topics", s.scope))

	for _, msg := range s.EmailService.Messages {
		entries := make([]model.ExternalSources, 0)
		from := msg.Envelope.From[0]
		subject := msg.Envelope.Subject

		if !(from.Mailbox == sender["mailbox"] && from.Host == sender["host"] && subject == sender["subject"]) {
			continue
		}

		for _, section := range msg.BodySection {
			//sugar.WriteDataToTmpFile(msg.BodySection, tmpPath)

			if section.Bytes != nil {
				doc, err := parser.HTMLSource(string(section.Bytes))
				if s.EmailService.CheckErr("parsing message body", err) {
					continue
				}

				table := dom.QuerySelector(doc, "body > table:nth-of-type(1n) table:nth-of-type(1n) table:nth-of-type(2n) > tbody")
				if table == nil {
					s.EmailService.Warn("dom.QuerySelector had not queried any data, returned nil")
					continue
				}

				var es model.ExternalSources
				for _, td := range dom.QuerySelectorAll(table, "tr > td:nth-child(2)") {
					anchor := dom.QuerySelector(td, "h2 > a")
					if anchor == nil {
						s.EmailService.Warn("dom.QuerySelector couldn't find title")
						continue
					}
					es.Title = sugar.SqueezeLine(dom.InnerHTML(anchor))

					u, err := url.Parse(dom.GetAttribute(anchor, "href"))
					if s.EmailService.CheckErr("parsing url", err) {
						continue
					}

					es.Fingerprint = u.RequestURI()
					pattern := regexp.MustCompile(regexPatterns["type-id"])
					typeIdMatch := pattern.FindStringSubmatch(es.Fingerprint)
					if len(typeIdMatch) != 2 {
						s.EmailService.Warn("Regexp => typeIdMatch not matched")
						continue
					}
					es.TypeId, _ = strconv.Atoi(typeIdMatch[1])

					sourceData := dom.QuerySelector(td, "p:first-child")
					if sourceData == nil {
						s.EmailService.Warn("dom.QuerySelector couldn't find sourceData in paragraph")
						continue
					}
					sourceDataString := html.UnescapeString(sugar.SqueezeLine(dom.InnerHTML(sourceData)))
					pattern = regexp.MustCompile(regexPatterns["who-genre"])
					sourceDataMatch := pattern.FindStringSubmatch(sourceDataString)

					if len(sourceDataMatch) != 3 {
						s.EmailService.Warn("Regexp => sourceData not matched")
						continue
					}

					es.Releaser = sourceDataMatch[1]
					es.Created = carbon.Parse(msg.Envelope.Date.String())
					es.Type = dbType

					genre := strings.ToLower(sourceDataMatch[2])
					es.TypeSubsectionId = topics[genre].(int)

					entries = append(entries, es)
				}

				result, status := _table.BatchInsertOnDuplicate(entries, s.db, columns)
				if status != constant.StatusFailed {
					entriesBatched = append(entriesBatched, result...)
				}

				s.EmailService.MoveMessageToMailbox(msg, status)
			}
		}
	}

	return entriesBatched
}