add pagination

src/internal/model/pagination.go

@@ -0,0 +1,35 @@
+package model
+
+import (
+	"strconv"
+)
+
+type PageButton struct {
+	Content  string
+	Active   bool
+	Disabled bool
+}
+
+type PaginationViewModel []PageButton
+
+func NewPaginationViewModel(currentPage uint, totalPages uint) *PaginationViewModel {
+	pagVM := make(PaginationViewModel, 0)
+
+	if totalPages > 1 {
+		pagVM = append(pagVM, PageButton{"1", currentPage == 1, false})
+	}
+	if currentPage > 3 {
+		pagVM = append(pagVM, PageButton{"...", false, true})
+	}
+	for i := max(2, currentPage-1); i <= min(totalPages-1, currentPage+1); i++ {
+		pagVM = append(pagVM, PageButton{strconv.Itoa(int(i)), i == currentPage, false})
+	}
+	if currentPage < totalPages-2 {
+		pagVM = append(pagVM, PageButton{"...", false, true})
+	}
+	if totalPages > 1 {
+		pagVM = append(pagVM, PageButton{strconv.Itoa(int(totalPages)), totalPages == currentPage, false})
+	}
+
+	return &pagVM
+}