feat(invoice): add send route

pkg/invoice/invoice.go

@@ -0,0 +1,65 @@
+package invoice
+
+import (
+	"io"
+	"time"
+
+	"code.gitea.io/sdk/gitea"
+	"git.schreifuchs.ch/lou-taylor/accounting/pkg/invoice/issue"
+	"git.schreifuchs.ch/lou-taylor/accounting/pkg/invoice/model"
+	"git.schreifuchs.ch/lou-taylor/accounting/pkg/invoice/report"
+)
+
+func (s *Service) Generate(creditor, deptor model.Entity, mindur time.Duration, rate float64, repos []Repo) (document io.ReadCloser, err error) {
+	var is []*gitea.Issue
+	for _, repo := range repos {
+		iss, _, err := s.gitea.ListRepoIssues(
+			repo.Owner,
+			repo.Repo,
+			gitea.ListIssueOption{
+				ListOptions: gitea.ListOptions{Page: 0, PageSize: 99999},
+				Since:       time.Now().AddDate(0, -1, 0),
+				Before:      time.Now(),
+				State:       gitea.StateClosed,
+			},
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		is = append(is, iss...)
+	}
+
+	is = filter(
+		is,
+		func(i *gitea.Issue) bool {
+			return i.Closed != nil && i.Closed.After(time.Now().AddDate(0, -1, 0))
+		},
+	)
+	issues := issue.FromGiteas(is, mindur)
+	r := report.New(
+		issues,
+		creditor,
+		deptor,
+		rate,
+	)
+	html, err := r.ToHTML()
+	if err != nil {
+		return
+	}
+
+	document, err = s.pdf.HtmlToPdf(html)
+	return
+}
+
+func filter[T any](slice []T, ok func(T) bool) []T {
+	out := make([]T, 0, len(slice))
+
+	for _, item := range slice {
+		if ok(item) {
+			out = append(out, item)
+		}
+	}
+
+	return out
+}