refactoring

domain/ui.go

@@ -0,0 +1,78 @@
+package domain
+
+import (
+	"fmt"
+	"os"
+
+	"redmine_tree/domain/model"
+)
+
+// UI represents the user interface output.
+type UI struct {
+	// You can add fields here for more advanced UI customization if needed,
+	// e.g., output writer (os.Stdout, os.Stderr), log levels, etc.
+}
+
+// NewUI creates and returns a new UI instance.
+func NewUI() *UI {
+	return &UI{}
+}
+
+// PrintError prints an error message to stderr and exits.
+func (ui *UI) PrintError(format string, a ...interface{}) {
+	fmt.Fprintf(os.Stderr, format, a...)
+	os.Exit(1)
+}
+
+// Printf prints a formatted message to stdout.
+func (ui *UI) Printf(format string, a ...interface{}) {
+	fmt.Printf(format, a...)
+}
+
+// Println prints a message to stdout with a newline.
+func (ui *UI) Println(a ...interface{}) {
+	fmt.Println(a...)
+}
+
+// PrintProjects lists projects to stdout.
+func (ui *UI) PrintProjects(projects []model.Project) {
+	ui.Printf("No project ID provided. Listing all available projects:\n\n")
+	if len(projects) == 0 {
+		ui.Println("No projects found.")
+	} else {
+		for _, p := range projects {
+			ui.Printf("  #%d %s\n", p.ID, p.Name)
+		}
+	}
+}
+
+// PrintUsage prints the application usage message to stderr and exits.
+func (ui *UI) PrintUsage(appName string) {
+	ui.Printf("Usage: %s <project-id>\n", appName)
+	ui.Printf("       REDMINE_URL and REDMINE_TOKEN must be set in .env, as environment variables, or in ~/.redmine-tree.json.\n")
+	ui.Printf("Example: REDMINE_URL=https://redmine.example.com REDMINE_TOKEN=abc123 %s my-project\n", appName)
+	ui.Printf("Or: %s my-project (if REDMINE_URL, REDMINE_TOKEN are in .env or ~/.redmine-tree.json)\n", appName)
+	os.Exit(1)
+}
+
+// PrintFetchingProjectDetails prints the message when fetching project details.
+func (ui *UI) PrintFetchingProjectDetails(projectName, projectID string) {
+	ui.Printf("Fetching issues for project: %s (%s)\n\n", projectName, projectID)
+}
+
+// PrintTotalIssuesFetched prints the total number of issues fetched.
+func (ui *UI) PrintTotalIssuesFetched(count int) {
+	ui.Printf("Total issues fetched: %d\n\n", count)
+}
+
+// PrintIssueTreeHeader prints the header for the issue tree.
+func (ui *UI) PrintIssueTreeHeader(rootCount int) {
+	ui.Printf("Issue tree (%d root issues):\n\n", rootCount)
+}
+
+// PrintSummary prints the summary of issues.
+func (ui *UI) PrintSummary(totalIssues, rootIssues int) {
+	ui.Printf("\n--- Summary ---\n")
+	ui.Printf("Total issues : %d\n", totalIssues)
+	ui.Printf("Root issues  : %d\n", rootIssues)
+}