implementing dependency management in the cli

internal/commands/issues/dependencies.go

@@ -0,0 +1,125 @@
+package issues
+
+import (
+	"fmt"
+
+	"github.com/LazyBachelor/LazyPM/internal/models"
+	"github.com/spf13/cobra"
+)
+
+const depCmdExample = `pm dep ISSUE-1
+pm dep view ISSUE-1
+pm dep add ISSUE-1 ISSUE-2
+pm dep remove ISSUE-1 ISSUE-2`
+
+// DepCmd manages dependencies for issues.
+// Default behavior: view dependencies of an issue.
+var DepCmd = &cobra.Command{
+	Use:     "dep [subcommand] [issue id]",
+	Short:   "Manage dependencies for an issue",
+	Long:    `Manage dependencies between issues.`,
+	Example: depCmdExample,
+
+	// This command runs only when no subcommand is provided.
+	Args:              cobra.ExactArgs(1),
+	ValidArgsFunction: completeIssues,
+	RunE:              runDepViewCmd,
+}
+
+var DepViewCmd = &cobra.Command{
+	Use:               "view [issue id]",
+	Short:             "View dependencies of an issue",
+	Aliases:          []string{"list", "show"},
+	Args:              cobra.ExactArgs(1),
+	ValidArgsFunction: completeIssues,
+	RunE:              runDepViewCmd,
+}
+
+var DepAddCmd = &cobra.Command{
+	Use:               "add <issue id> <depends-on id>",
+	Short:             "Add a dependency: issue depends on depends-on issue",
+	Args:              cobra.ExactArgs(2),
+	ValidArgsFunction: completeIssues,
+	RunE:              runDepAddCmd,
+}
+
+var DepRemoveCmd = &cobra.Command{
+	Use:               "remove <issue id> <depends-on id>",
+	Short:             "Remove an existing dependency",
+	Aliases:          []string{"rm"},
+	Args:              cobra.ExactArgs(2),
+	ValidArgsFunction: completeIssues,
+	RunE:              runDepRemoveCmd,
+}
+
+func init() {
+	DepCmd.Aliases = []string{"dependencies"}
+
+	DepCmd.AddCommand(DepViewCmd)
+	DepCmd.AddCommand(DepAddCmd)
+	DepCmd.AddCommand(DepRemoveCmd)
+}
+
+func runDepViewCmd(cmd *cobra.Command, args []string) error {
+	issueID := args[0]
+	app := AppFromContext(cmd.Context())
+
+	deps, err := app.Issues.GetDependencies(cmd.Context(), issueID)
+	if err != nil {
+		return fmt.Errorf("failed to load dependencies for %s: %w", issueID, err)
+	}
+
+	if len(deps) == 0 {
+		cmd.Printf("Issue %s has no dependencies.\n", issueID)
+		return nil
+	}
+
+	cmd.Printf("Dependencies for %s:\n", issueID)
+	for _, d := range deps {
+		if d == nil {
+			continue
+		}
+		if d.Title != "" {
+			cmd.Printf("- %s: %s\n", d.ID, d.Title)
+		} else {
+			cmd.Printf("- %s\n", d.ID)
+		}
+	}
+
+	return nil
+}
+
+func runDepAddCmd(cmd *cobra.Command, args []string) error {
+	issueID := args[0]
+	dependsOnID := args[1]
+
+	app := AppFromContext(cmd.Context())
+
+	dep := &models.Dependency{
+		IssueID:     issueID,
+		DependsOnID: dependsOnID,
+		Type:        models.DepBlocks,
+	}
+
+	if err := app.Issues.AddDependency(cmd.Context(), dep, "cli"); err != nil {
+		return fmt.Errorf("failed to add dependency: %s depends on %s: %w", issueID, dependsOnID, err)
+	}
+
+	cmd.Printf("Added dependency: %s depends on %s\n", issueID, dependsOnID)
+	return runDepViewCmd(cmd, []string{issueID})
+}
+
+func runDepRemoveCmd(cmd *cobra.Command, args []string) error {
+	issueID := args[0]
+	dependsOnID := args[1]
+
+	app := AppFromContext(cmd.Context())
+
+	if err := app.Issues.RemoveDependency(cmd.Context(), issueID, dependsOnID, "cli"); err != nil {
+		return fmt.Errorf("failed to remove dependency: %s depends on %s: %w", issueID, dependsOnID, err)
+	}
+
+	cmd.Printf("Removed dependency: %s no longer depends on %s\n", issueID, dependsOnID)
+	return runDepViewCmd(cmd, []string{issueID})
+}
+