Make tea issues create honor --output json (#1114)

## Problem

Follow-up to #1111, covering the issues side of the same hole: `tea issues create` accepts `--output` (it parses through the urfave/cli v3 ancestor-flag cascade — `issues` carries the flag via `AllDefaultFlags`, `create` never declares it) but the action never reads it. Without this fix, `tea issues create --output json | jq .url` feeds jq a markdown document.

The default output is doubly hostile to consumers: glamour renders the details as markdown (with OSC 8 hyperlinks around the URL when piped), and a second bare `fmt.Println(issue.HTMLURL)` line follows it.

## What this changes

- `task.CreateIssue` now returns the created `*gitea.Issue` instead of printing it.
- `runIssuesCreate` switches on `--output`, mirroring the detail-command precedent and the merged create-PR behavior from #1111: `--output json` emits compact lean JSON; any other value (or no flag) falls through to the previous rendering, byte-identical to before.
- Lean JSON shape: `index`, `title`, `url`, `state` — matching `createdPullJSON` in `cmd/pulls/create.go`, including its post-review compact encoding.
- The interactive path is untouched — it only triggers when zero flags are set, so `--output` can never be active there.

Example:

```
$ tea issues create --output json --title "bug: thing" | jq -r .url
https://gitea.example.com/owner/repo/issues/42
```

There is no agit-flow equivalent on issues, so no extra guard is needed — unlike the pulls side, every creation path produces an `*gitea.Issue`.

---------

Co-authored-by: Danilo Sousa <code@danilosousa.net>
Reviewed-on: https://gitea.com/gitea/tea/pulls/1114
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: ongolk <238961+ongolk@noreply.gitea.com>

cmd/issues/create.go

@@ -5,13 +5,18 @@ package issues
 
 import (
 	stdctx "context"
+	"encoding/json"
+	"fmt"
+	"io"
+
+	gitea "gitea.dev/sdk"
+	"github.com/urfave/cli/v3"
 
 	"gitea.dev/tea/cmd/flags"
 	"gitea.dev/tea/modules/context"
 	"gitea.dev/tea/modules/interact"
+	"gitea.dev/tea/modules/print"
 	"gitea.dev/tea/modules/task"
-
-	"github.com/urfave/cli/v3"
 )
 
 // CmdIssuesCreate represents a sub command of issues to create issue
@@ -47,9 +52,44 @@ func runIssuesCreate(requestCtx stdctx.Context, cmd *cli.Command) error {
 		return err
 	}
 
-	return task.CreateIssue(requestCtx, ctx.Login,
+	issue, err := task.CreateIssue(requestCtx, ctx.Login,
 		ctx.Owner,
 		ctx.Repo,
 		*opts,
 	)
+	if err != nil {
+		return err
+	}
+
+	if ctx.IsSet("output") {
+		switch ctx.String("output") {
+		case "json":
+			return writeCreatedIssueAsJSON(ctx.Writer, issue)
+		}
+	}
+
+	print.IssueDetails(issue, nil)
+
+	fmt.Println(issue.HTMLURL)
+
+	return nil
+}
+
+// createdIssueJSON is the machine-readable representation of a freshly
+// created issue, mirroring the create-PR equivalent in cmd/pulls/create.go
+// (createdPullJSON).
+type createdIssueJSON struct {
+	Index int64           `json:"index"`
+	Title string          `json:"title"`
+	URL   string          `json:"url"`
+	State gitea.StateType `json:"state"`
+}
+
+func writeCreatedIssueAsJSON(w io.Writer, issue *gitea.Issue) error {
+	return json.NewEncoder(w).Encode(createdIssueJSON{
+		Index: issue.Index,
+		Title: issue.Title,
+		URL:   issue.HTMLURL,
+		State: issue.State,
+	})
 }

cmd/issues/create_test.go

@@ -0,0 +1,41 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+
+	gitea "gitea.dev/sdk"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestWriteCreatedIssueAsJSON(t *testing.T) {
+	issue := &gitea.Issue{
+		Index:   42,
+		Title:   "test title",
+		HTMLURL: "https://gitea.example.com/owner/repo/issues/42",
+		State:   gitea.StateOpen,
+	}
+
+	var buf bytes.Buffer
+	require.NoError(t, writeCreatedIssueAsJSON(&buf, issue))
+
+	var got map[string]any
+	require.NoError(t, json.Unmarshal(buf.Bytes(), &got))
+
+	assert.Equal(t, float64(42), got["index"])
+	assert.Equal(t, "test title", got["title"])
+	assert.Equal(t, "https://gitea.example.com/owner/repo/issues/42", got["url"])
+	assert.Equal(t, "open", got["state"])
+
+	// exactly the lean field set, nothing extra
+	assert.Len(t, got, 4)
+
+	// machine-readable output must not contain terminal escape sequences
+	assert.NotContains(t, buf.String(), "\x1b")
+}

modules/interact/issue_create.go

@@ -5,11 +5,13 @@ package interact
 
 import (
 	"context"
+	"fmt"
 	"strings"
 
 	gitea "gitea.dev/sdk"
 
 	"gitea.dev/tea/modules/config"
+	"gitea.dev/tea/modules/print"
 	"gitea.dev/tea/modules/task"
 	"gitea.dev/tea/modules/theme"
 
@@ -34,7 +36,16 @@ func CreateIssue(ctx context.Context, login *config.Login, owner, repo string) e
 		return err
 	}
 
-	return task.CreateIssue(ctx, login, owner, repo, opts)
+	issue, err := task.CreateIssue(ctx, login, owner, repo, opts)
+	if err != nil {
+		return err
+	}
+
+	print.IssueDetails(issue, nil)
+
+	fmt.Println(issue.HTMLURL)
+
+	return nil
 }
 
 func promptIssueProperties(ctx context.Context, login *config.Login, owner, repo string, o *gitea.CreateIssueOption) error {

modules/task/issue_create.go

@@ -10,24 +10,19 @@ import (
 	gitea "gitea.dev/sdk"
 
 	"gitea.dev/tea/modules/config"
-	"gitea.dev/tea/modules/print"
 )
 
-// CreateIssue creates an issue in the given repo and prints the result
+// CreateIssue creates an issue in the given repo and returns the created issue
-func CreateIssue(requestCtx stdctx.Context, rlogin *config.Login, repoOwner, repoName string, opts gitea.CreateIssueOption) error {
+func CreateIssue(requestCtx stdctx.Context, rlogin *config.Login, repoOwner, repoName string, opts gitea.CreateIssueOption) (*gitea.Issue, error) {
 	// title is required
 	if len(opts.Title) == 0 {
-		return fmt.Errorf("title is required")
+		return nil, fmt.Errorf("title is required")
 	}
 
 	issue, _, err := rlogin.Client().Issues.CreateIssue(requestCtx, repoOwner, repoName, opts)
 	if err != nil {
-		return fmt.Errorf("could not create issue: %s", err)
+		return nil, fmt.Errorf("could not create issue: %s", err)
 	}
 
-	print.IssueDetails(issue, nil)
+	return issue, nil
-
-	fmt.Println(issue.HTMLURL)
-
-	return nil
 }