136 lines
3.4 KiB
Go
136 lines
3.4 KiB
Go
package scraper
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type TweetTrove struct {
|
|
Tweets map[TweetID]Tweet
|
|
Users map[UserID]User
|
|
Retweets map[TweetID]Retweet
|
|
|
|
TombstoneUsers []UserHandle
|
|
}
|
|
|
|
func NewTweetTrove() TweetTrove {
|
|
ret := TweetTrove{}
|
|
ret.Tweets = make(map[TweetID]Tweet)
|
|
ret.Users = make(map[UserID]User)
|
|
ret.Retweets = make(map[TweetID]Retweet)
|
|
ret.TombstoneUsers = []UserHandle{}
|
|
return ret
|
|
}
|
|
|
|
/**
|
|
* Make it compatible with previous silly interface if needed
|
|
*/
|
|
func (trove TweetTrove) Transform() (tweets []Tweet, retweets []Retweet, users []User) {
|
|
for _, val := range trove.Tweets {
|
|
tweets = append(tweets, val)
|
|
}
|
|
for _, val := range trove.Users {
|
|
users = append(users, val)
|
|
}
|
|
for _, val := range trove.Retweets {
|
|
retweets = append(retweets, val)
|
|
}
|
|
return
|
|
} // TODO: refactor until this function isn't needed anymore
|
|
|
|
/**
|
|
* Search for a user by handle. Second param is whether the user was found or not.
|
|
*/
|
|
func (trove TweetTrove) FindUserByHandle(handle UserHandle) (User, bool) {
|
|
for _, user := range trove.Users {
|
|
if strings.EqualFold(string(user.Handle), string(handle)) {
|
|
return user, true
|
|
}
|
|
}
|
|
return User{}, false
|
|
}
|
|
|
|
/**
|
|
* Combine two troves into one
|
|
*/
|
|
func (t1 *TweetTrove) MergeWith(t2 TweetTrove) {
|
|
for id, val := range t2.Tweets {
|
|
t1.Tweets[id] = val
|
|
}
|
|
for id, val := range t2.Users {
|
|
t1.Users[id] = val
|
|
}
|
|
for id, val := range t2.Retweets {
|
|
t1.Retweets[id] = val
|
|
}
|
|
|
|
t1.TombstoneUsers = append(t1.TombstoneUsers, t2.TombstoneUsers...)
|
|
}
|
|
|
|
/**
|
|
* Tries to fetch every User that's been identified in a tombstone in this trove
|
|
*/
|
|
func (trove *TweetTrove) FetchTombstoneUsers() {
|
|
for _, handle := range trove.TombstoneUsers {
|
|
// Skip fetching if this user is already in the trove
|
|
_, already_fetched := trove.FindUserByHandle(handle)
|
|
if already_fetched {
|
|
continue
|
|
}
|
|
|
|
log.Debug("Getting tombstone user: " + handle)
|
|
user, err := GetUser(handle)
|
|
if err != nil {
|
|
panic(fmt.Errorf("Error getting tombstoned user with handle %q: \n %w", handle, err))
|
|
}
|
|
|
|
if user.ID == 0 {
|
|
// Find some random ID to fit it into the trove
|
|
for i := 1; ; i++ {
|
|
_, ok := trove.Users[UserID(i)]
|
|
if !ok {
|
|
user.ID = UserID(i)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
trove.Users[user.ID] = user
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks for tombstoned tweets and fills in their UserIDs based on the collected tombstoned users.
|
|
* To be called after calling "scraper.GetUser" on all the tombstoned users.
|
|
*
|
|
* At this point, those users should have been added to this trove's Users collection, and the
|
|
* Tweets have a field `UserHandle` which can be used to pair them with newly fetched Users.
|
|
*
|
|
* This will still fail if the user deleted their account (instead of getting banned, blocking the
|
|
* quote-tweeter, etc), because then that user won't show up .
|
|
*/
|
|
func (trove *TweetTrove) FillMissingUserIDs() {
|
|
for i := range trove.Tweets {
|
|
tweet := trove.Tweets[i]
|
|
if tweet.UserHandle == "" {
|
|
// No need to fill this tweet's user_id, it's already filled
|
|
continue
|
|
}
|
|
|
|
user, is_found := trove.FindUserByHandle(tweet.UserHandle)
|
|
if !is_found {
|
|
// The user probably deleted deleted their account, and thus `scraper.GetUser` failed. So
|
|
// they're not in this trove's Users.
|
|
panic(fmt.Errorf(
|
|
"Couldn't find user ID for user %q, while filling missing UserID in tweet with ID %d",
|
|
tweet.UserHandle,
|
|
tweet.ID,
|
|
))
|
|
}
|
|
tweet.UserID = user.ID
|
|
trove.Tweets[i] = tweet
|
|
}
|
|
}
|