fix(issue): name missing issues and attachments in errors

tea issue close 999 printed "issue 999: not found (HTTP 404 GET …)" and
issue attachment view 1 9 blamed issue #1 for a missing attachment.
Batch commands (issue close, reopen, edit, milestone issue add and
remove) now report "issue 999: not found in alice/x", and attachment
commands "attachment 9 not found in alice/x#1".

Signed-off-by: bircni <bircni@icloud.com>

internal/app/issue_bulk_edit_test.go

@@ -114,3 +114,28 @@ func TestIssueMutationsReportDoneLines(t *testing.T) {
 	run(true, "issue", "edit", "5", "--title", "Open one")
 	require.Equal(t, "✓ Edited issue alice/project#5 (Open one)\n", diagnostics.String())
 }
+
+func TestMissingItemsAreNamed(t *testing.T) {
+	server := newAuthenticatedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/api/v1/repos/alice/project" {
+			_, _ = w.Write([]byte(`{"full_name":"alice/project","has_issues":true,"has_pull_requests":true}`))
+			return
+		}
+		w.WriteHeader(http.StatusNotFound)
+		_, _ = w.Write([]byte(`{"message":"not found"}`))
+	}))
+	defer server.Close()
+	deps, _, _ := serverDeps(t, server.URL)
+	for _, test := range []struct {
+		args []string
+		want string
+	}{
+		{[]string{"issue", "close", "999"}, "issue 999: not found in alice/project"},
+		{[]string{"issue", "edit", "999", "--title", "x"}, "issue 999: not found in alice/project"},
+		{[]string{"issue", "attachment", "view", "1", "9"}, "attachment 9 not found in alice/project#1"},
+		{[]string{"issue", "attachment", "delete", "1", "9", "--yes"}, "attachment 9 not found in alice/project#1"},
+	} {
+		err := Execute(context.Background(), deps, append(test.args, "-R", "alice/project"))
+		require.EqualError(t, Explain(context.Background(), deps, err), test.want, test.args)
+	}
+}

internal/app/issue_edit.go

@@ -109,7 +109,8 @@ $ tea issue edit 12 --body-file notes.md`, Annotations: map[string]string{"tea.a
 			opts.Body = &draft.Body
 		}
 		return batchDone(a, cmd, numbers, issueLabel, func(n int64) (services.Issue, error) {
-			return service.Edit(cmd.Context(), n, opts)
+			item, err := service.Edit(cmd.Context(), n, opts)
+			return item, itemError(err, target.Repo)
 		}, editedIssue(target))
 	}}
 	flags := cmd.Flags()
@@ -147,7 +148,7 @@ func (a *application) editIssuesInteractively(cmd *cobra.Command, target target,
 	return batchDone(a, cmd, numbers, issueLabel, func(n int64) (item services.Issue, err error) {
 		current, err := service.View(cmd.Context(), n)
 		if err != nil {
-			return item, err
+			return item, itemError(err, target.Repo)
 		}
 		choices := terminal.IssueEditFormChoices{
 			Heading: "Editing " + refLabel(target.Repo, n, current.Title),
@@ -182,6 +183,7 @@ func (a *application) editIssuesInteractively(cmd *cobra.Command, target target,
 				opts.RemoveDeadline = &values.ClearDeadline
 			}
 		}
-		return service.Edit(cmd.Context(), n, opts)
+		item, err = service.Edit(cmd.Context(), n, opts)
+		return item, itemError(err, target.Repo)
 	}, editedIssue(target))
 }

internal/app/issues.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/http"
 	"net/url"
 	"path/filepath"
 	"strconv"
@@ -17,6 +18,7 @@ import (
 	"gitea.dev/tea/internal/clierr"
 	"gitea.dev/tea/internal/services"
 	"gitea.dev/tea/internal/terminal"
+	"gitea.dev/tea/internal/transport"
 	"github.com/spf13/cobra"
 )
 
@@ -429,7 +431,7 @@ $ tea issue %[1]s 12 13 --comment "Done in #14"`, verb), Annotations: map[string
 		results, failures := applyBatch(cmd, numbers, issueLabel, func(n int64) (services.Issue, error) {
 			current, err := service.View(cmd.Context(), n)
 			if err != nil {
-				return current, err
+				return current, itemError(err, target.Repo)
 			}
 			if current.State == state || (state == "closed" && current.State == "merged") {
 				a.warn(cmd, "%s %s is already %s", titleCase(discussionNoun(current.Kind)), refLabel(target.Repo, n, current.Title), current.State)
@@ -437,14 +439,15 @@ $ tea issue %[1]s 12 13 --comment "Done in #14"`, verb), Annotations: map[string
 			}
 			if comment != "" {
 				if _, err := comments.Create(cmd.Context(), n, comment); err != nil {
-					return current, err
+					return current, itemError(err, target.Repo)
 				}
 			}
 			item, err := service.SetState(cmd.Context(), n, state)
-			if err == nil {
-				a.done(cmd, "%s %s %s", past, discussionNoun(item.Kind), refLabel(target.Repo, n, item.Title))
+			if err != nil {
+				return item, itemError(err, target.Repo)
 			}
-			return item, err
+			a.done(cmd, "%s %s %s", past, discussionNoun(item.Kind), refLabel(target.Repo, n, item.Title))
+			return item, nil
 		}, func(services.Issue) {})
 		var err2 error
 		if a.options.json != "" {
@@ -523,6 +526,15 @@ func labelChoices(items []services.Label) []terminal.IssueLabelChoice {
 
 func issueLabel(n int64) string { return fmt.Sprintf("issue %d", n) }
 
+// itemError words the failure of one item of a batch, which the batch prefixes with the item, such
+// as "issue 9: not found in alice/x".
+func itemError(err error, scope string) error {
+	if apiErr, ok := errors.AsType[*transport.APIError](err); ok && apiErr.Status == http.StatusNotFound {
+		return explain(err, "not found in %s", scope)
+	}
+	return services.ClassifyRequest(err)
+}
+
 // nameFilter splits a comma-separated filter of kind, trimming entries and rejecting blanks.
 func nameFilter(kind, raw string) ([]string, error) {
 	if raw == "" {

internal/app/milestone_issues.go

@@ -59,11 +59,13 @@ $ tea milestone issue %[1]s v1.0 12 13 '#14'`, verb), Annotations: map[string]st
 				return err
 			}
 			service := services.Issues{Client: target.client, Repository: target.Repo}
-			results, failures := applyBatch(cmd, numbers, issueLabel, func(n int64) (services.Issue, error) {
+			results, failures := applyBatch(cmd, numbers, issueLabel, func(n int64) (item services.Issue, err error) {
 				if verb == "remove" {
-					return service.RemoveMilestone(cmd.Context(), n, milestone)
+					item, err = service.RemoveMilestone(cmd.Context(), n, milestone)
+				} else {
+					item, err = service.Edit(cmd.Context(), n, services.IssueEdit{Milestone: &milestone.ID})
 				}
-				return service.Edit(cmd.Context(), n, services.IssueEdit{Milestone: &milestone.ID})
+				return item, itemError(err, target.Repo)
 			}, func(services.Issue) {})
 			if len(results) > 0 {
 				changed := make([]string, len(results))

internal/services/issue_attachments.go

@@ -7,6 +7,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"strconv"
 
 	gitea "gitea.dev/sdk"
 )
@@ -36,9 +37,16 @@ func (s Issues) Attachment(ctx context.Context, number, id int64) (IssueAttachme
 }
 
 func (s Issues) attachment(ctx context.Context, number, id int64) (*gitea.Attachment, error) {
-	return repoCall(ctx, s.Client, s.Repository, func(ctx context.Context, c *gitea.Client, owner, repo string) (*gitea.Attachment, *gitea.Response, error) {
+	attachment, err := repoCall(ctx, s.Client, s.Repository, func(ctx context.Context, c *gitea.Client, owner, repo string) (*gitea.Attachment, *gitea.Response, error) {
 		return c.Issues.GetIssueAttachment(ctx, owner, repo, number, id)
 	})
+	return attachment, s.attachmentError(err, number, id)
+}
+
+// attachmentError names attachment id of issue number in a failure; Gitea answers 404 both for a
+// missing issue and a missing attachment.
+func (s Issues) attachmentError(err error, number, id int64) error {
+	return Classify(err, "attachment", strconv.FormatInt(id, 10), fmt.Sprintf("%s#%d", s.Repository, number))
 }
 
 // RenameAttachment changes the filename without replacing its content.
@@ -47,16 +55,16 @@ func (s Issues) RenameAttachment(ctx context.Context, number, id int64, name str
 		return c.Issues.EditIssueAttachment(ctx, owner, repo, number, id, gitea.EditAttachmentOptions{Name: name})
 	})
 	if err != nil {
-		return IssueAttachment{}, err
+		return IssueAttachment{}, s.attachmentError(err, number, id)
 	}
 	return IssueAttachment(assetFrom(attachment)), nil
 }
 
 // DeleteAttachment removes one attachment from its owning issue.
 func (s Issues) DeleteAttachment(ctx context.Context, number, id int64) error {
-	return repoDo(ctx, s.Client, s.Repository, func(ctx context.Context, c *gitea.Client, owner, repo string) (*gitea.Response, error) {
+	return s.attachmentError(repoDo(ctx, s.Client, s.Repository, func(ctx context.Context, c *gitea.Client, owner, repo string) (*gitea.Response, error) {
 		return c.Issues.DeleteIssueAttachment(ctx, owner, repo, number, id)
-	})
+	}), number, id)
 }
 
 // UploadAttachment streams a file to its owning issue or pull request.