package database

import (
	"fmt"
	"html"
	"strings"

	"git.eeqj.de/sneak/feta/toot"

	"github.com/google/uuid"
	hstg "github.com/grokify/html-strip-tags-go"
	_ "github.com/jinzhu/gorm/dialects/sqlite"
)

func (m *Manager) TootInsertHashCacheSize() uint {
	m.cachelock.Lock()
	defer m.cachelock.Unlock()
	return uint(len(*m.recentlyInsertedTootHashCache))
}

func (m *Manager) TootExists(t *toot.Toot) bool {
	var try StoredToot

	// first, nuke cache if it gets too big to prevent
	// unlimited memory usage
	m.cachelock.Lock()
	if len(*m.recentlyInsertedTootHashCache) > 1000000 {
		emptycache := make(map[string]bool)
		m.recentlyInsertedTootHashCache = &emptycache
	}
	m.cachelock.Unlock()

	m.cachelock.Lock()
	// check map
	if _, ok := (*m.recentlyInsertedTootHashCache)[t.GetHash()]; ok {
		m.cachelock.Unlock()
		return true
	}
	m.cachelock.Unlock()

	if m.db.Where("Hash = ?", t.GetHash()).First(&try).RecordNotFound() {
		return false
	} else {
		return true
	}
}

func (m *Manager) StoreToot(t *toot.Toot) error {
	nt := new(StoredToot)
	nt.UUID = uuid.New()
	nt.ServerCreated = t.Parsed.CreatedAt
	nt.Original = t.Original
	// FIXME add better validation to the parsed stuff here
	nt.Acct = fmt.Sprintf("%s@%s", t.Parsed.Account.Acct, strings.ToLower(t.FromHost))
	nt.URL = t.Parsed.URL
	nt.Content = []byte(t.Parsed.Content)
	// FIXME replace tags with spaces, don't just strip them, otherwise text
	// gets messed up.
	nt.TextContent = []byte(html.UnescapeString(hstg.StripTags(t.Parsed.Content)))
	nt.Hostname = strings.ToLower(t.FromHost)
	nt.Hash = t.GetHash()

	//TODO: detect hashtags and insert hashtag records
	//TODO: detect URLs and insert URL records

	r := m.db.Create(&nt)

	// put it in the cache to avoid relying on db for dedupe:
	m.cachelock.Lock()
	(*m.recentlyInsertedTootHashCache)[nt.Hash] = true
	m.cachelock.Unlock()

	//panic(fmt.Sprintf("%+v", t))
	return r.Error
}

func (m *Manager) StoreToots(tc []*toot.Toot) error {
	for _, item := range tc {
		err := m.StoreToot(item)
		if err != nil {
			return err
		}
	}
	return nil
}