/
chat.go
138 lines (121 loc) · 3.3 KB
/
chat.go
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package storage
import (
"time"
"github.com/globalsign/mgo/bson"
"github.com/pkg/errors"
)
// ChatLog represents a single logged chat message from Discord
type ChatLog struct {
Timestamp int64
DiscordUserID string
DiscordChannel string
Message string
DiscordMessageID string
}
// RecordChatLog records a chat message from a user in a channel
func (m *MongoStorer) RecordChatLog(discordUserID, discordChannel, message, messageID string) (err error) {
record := ChatLog{
time.Now().Unix(),
discordUserID,
discordChannel,
message,
messageID,
}
err = m.chat.Insert(record)
if err != nil {
err = errors.Wrap(err, "failed to insert chat log")
}
return
}
// GetMessagesForUser returns all messages from the given discord user.
func (m *MongoStorer) GetMessagesForUser(discordUserID string) (messages []ChatLog, err error) {
err = m.chat.Find(bson.M{"discorduserid": discordUserID}).All(&messages)
return
}
// TopMessages is a list of users with the most messages
type TopMessages []TopMessagesEntry
// TopMessagesEntry is a user and their message count
type TopMessagesEntry struct {
User string `bson:"_id"`
Messages int `bson:"count"`
}
func (s TopMessages) Len() int { return len(s) }
func (s TopMessages) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s TopMessages) Less(i, j int) bool { return s[i].Messages < s[j].Messages }
// GetTopMessages returns n users with the most messages
func (m *MongoStorer) GetTopMessages(top int) (result TopMessages, err error) {
err = m.chat.Pipe([]bson.M{
bson.M{
"$group": bson.M{
"_id": "$discorduserid",
"count": bson.M{
"$sum": 1,
},
},
},
bson.M{
"$sort": bson.M{
"count": -1,
},
},
bson.M{
"$limit": top,
},
}).All(&result)
// sort.Sort(sort.Reverse(result))
return
}
func (m *MongoStorer) GetUserMessageCount(discordUserID string) (messageCount int, err error) {
messageCount, err = m.chat.Find(bson.M{"discorduserid": discordUserID}).Count()
return
}
// GetUserRank returns rank according to most messages sent with the top user having rank 1
func (m *MongoStorer) GetUserRank(discordUserID string) (rank int, err error) {
messageCount, err := m.chat.Find(bson.M{"discorduserid": discordUserID}).Count()
myPipe := m.chat.Pipe([]bson.M{
bson.M{
"$group": bson.M{
"_id": "$discorduserid",
"count": bson.M{
"$sum": 1,
},
},
},
bson.M{
"$match": bson.M{"count": bson.M{"$gt": messageCount}},
},
bson.M{
"$count": "rank",
},
})
tempMap := make(map[string]int)
err = myPipe.One(tempMap)
rank = tempMap["rank"] + 1 // +1 otherwise the top user will have rank 0
return
}
// GetRandomMessage returns a random message from the database.
func (m *MongoStorer) GetRandomMessage() (log ChatLog, err error) {
err = m.chat.Pipe([]bson.M{
{"$sample": bson.M{
"size": 1,
}},
}).One(&log)
return
}
func (m *MongoStorer) GetRandomMessageFromUsers(users []string) (result ChatLog, err error) {
err = m.chat.Pipe([]bson.M{
{"$match": bson.M{
"discorduserid": bson.M{
"$in": users,
},
}},
{"$sample": bson.M{
"size": 1,
}},
}).One(&result)
return
}
func (m *MongoStorer) GetMessageByID(messageID string) (message ChatLog, err error) {
err = m.chat.Find(bson.M{"discordmessageid": messageID}).One(&message)
return message, err
}