2021-08-10 22:08:01 -07:00

151 lines
3.9 KiB
Go

package scraper
import (
"time"
"fmt"
"strings"
"regexp"
"path"
"offline_twitter/terminal_utils"
)
type UserID int64
type UserHandle string
func JoinArrayOfHandles(handles []UserHandle) string {
ret := []string{}
for _, h := range handles {
ret = append(ret, string(h))
}
return strings.Join(ret, ",")
}
type User struct {
ID UserID
DisplayName string
Handle UserHandle
Bio string
FollowingCount int
FollowersCount int
Location string
Website string
JoinDate time.Time
IsPrivate bool
IsVerified bool
ProfileImageUrl string
ProfileImageLocalPath string
BannerImageUrl string
BannerImageLocalPath string
PinnedTweetID TweetID
PinnedTweet *Tweet
IsContentDownloaded bool
}
func (u User) String() string {
var verified string
if u.IsVerified {
verified = "[\u2713]"
}
ret := fmt.Sprintf(
`%s%s
@%s
%s
Following: %d Followers: %d
Joined %s
%s
%s
`,
u.DisplayName,
verified,
u.Handle,
terminal_utils.WrapText(u.Bio, 60),
u.FollowingCount,
u.FollowersCount,
terminal_utils.FormatDate(u.JoinDate),
u.Location,
u.Website,
)
if u.PinnedTweet != nil {
ret += "\n" + terminal_utils.WrapText(u.PinnedTweet.Text, 60)
} else {
println("Pinned tweet id:", u.PinnedTweetID)
}
return ret
}
// Turn an APIUser, as returned from the scraper, into a properly structured User object
func ParseSingleUser(apiUser APIUser) (ret User, err error) {
ret.ID = UserID(apiUser.ID)
ret.DisplayName = apiUser.Name
ret.Handle = UserHandle(apiUser.ScreenName)
ret.Bio = apiUser.Description
ret.FollowingCount = apiUser.FriendsCount
ret.FollowersCount = apiUser.FollowersCount
ret.Location = apiUser.Location
if len(apiUser.Entities.URL.Urls) > 0 {
ret.Website = apiUser.Entities.URL.Urls[0].ExpandedURL
}
ret.JoinDate, err = time.Parse(time.RubyDate, apiUser.CreatedAt)
if err != nil {
return
}
ret.IsPrivate = apiUser.Protected
ret.IsVerified = apiUser.Verified
ret.ProfileImageUrl = apiUser.ProfileImageURLHTTPS
if regexp.MustCompile(`_normal\.\w{2,4}`).MatchString(ret.ProfileImageUrl) {
ret.ProfileImageUrl = strings.ReplaceAll(ret.ProfileImageUrl, "_normal.", ".")
}
ret.BannerImageUrl = apiUser.ProfileBannerURL
ret.ProfileImageLocalPath = ret.compute_profile_image_local_path()
ret.BannerImageLocalPath = ret.compute_banner_image_local_path()
if len(apiUser.PinnedTweetIdsStr) > 0 {
ret.PinnedTweetID = TweetID(idstr_to_int(apiUser.PinnedTweetIdsStr[0]))
}
return
}
// Calls API#GetUser and returns the parsed result
func GetUser(handle UserHandle) (User, error) {
api := API{}
apiUser, err := api.GetUser(handle)
if err != nil {
return User{}, err
}
return ParseSingleUser(apiUser)
}
/**
* Make a filename for the profile image, that hopefully won't clobber other ones
*/
func (u User) compute_profile_image_local_path() string {
return string(u.Handle) + "_profile_" + path.Base(u.ProfileImageUrl)
}
/**
* Make a filename for the banner image, that hopefully won't clobber other ones.
* Add a file extension if necessary (seems to be necessary).
* If there is no banner image, just return nothing.
*/
func (u User) compute_banner_image_local_path() string {
if u.BannerImageUrl == "" {
return ""
}
base_name := path.Base(u.BannerImageUrl)
// Check if it has an extension (e.g., ".png" or ".jpeg")
if !regexp.MustCompile(`\.\w{2,4}$`).MatchString(base_name) {
// If it doesn't have an extension, add one
base_name += ".jpg"
}
return string(u.Handle) + "_banner_" + base_name
}