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package utils |
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import ( |
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"fmt" |
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"github.com/SerhiiCho/shoshka-go/models" |
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) |
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// Contains function returns true if slice contains given item |
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func Contains(slice []string, needle string) bool { |
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1 |
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for _, sliceItem := range slice { |
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1 |
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if sliceItem == needle { |
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1 |
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return true |
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} |
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} |
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1 |
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return false |
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} |
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// GetUniqueItem returns unique item from a slice |
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func GetUniqueItem(slice1 []string, slice2 []string) []string { |
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1 |
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var result []string |
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1 |
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for _, item1 := range slice1 { |
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1 |
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if !Contains(slice2, item1) { |
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result = append(result, item1) |
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} |
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} |
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1 |
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for _, item2 := range slice2 { |
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if !Contains(slice1, item2) { |
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result = append(result, item2) |
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} |
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} |
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1 |
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return result |
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} |
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// GetIndexOfSliceItem returns index of a slice item where value is positioned |
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func GetIndexOfSliceItem(slice []string, value string) int { |
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1 |
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for i, sliceItem := range slice { |
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1 |
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if sliceItem == value { |
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return i |
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} |
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} |
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return -1 |
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} |
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// GenerateMapOfNewData returns nil if there are no new photo reports |
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func GenerateMapOfNewData(titles []string, photoReports []models.PhotoReport) []models.PhotoReport { |
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oldTitles := GetCached("titles") |
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newPhotoReportTitles := GetUniqueItem(titles, oldTitles) |
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if len(titles) > 0 { |
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PutIntoCache(titles, "titles") |
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} |
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if len(newPhotoReportTitles) == 0 { |
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fmt.Println("There are no new photo reports") |
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return nil |
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} |
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var tgMessageData []models.PhotoReport |
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for _, newReportTitle := range newPhotoReportTitles { |
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index := GetIndexOfSliceItem(titles, newReportTitle) |
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if index == -1 { |
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continue |
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} |
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tgMessageData = append(tgMessageData, models.PhotoReport{ |
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Title: newReportTitle, |
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Image: photoReports[index].Image, |
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URL: photoReports[index].URL, |
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}) |
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} |
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return tgMessageData |
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} |
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// GetTitlesFromPhotoReports returns only titles from slice of messsage data |
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func GetTitlesFromPhotoReports(photoReports []models.PhotoReport) []string { |
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var titles []string |
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for _, photoReport := range photoReports { |
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titles = append(titles, photoReport.Title) |
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} |
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return titles |
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} |
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SerhiiCho /
shoshka-go
