// Command helpers for the node subcommand.
package main

import (
	"fmt"
	"path/filepath"

	"verstak/internal/core/nodes"
	"verstak/internal/core/storage"
)

func runNodeCreate(vault, parentID, typ, title string) error {
	dbPath := filepath.Join(vault, ".verstak", "index.db")
	db, err := storage.Open(dbPath)
	if err != nil {
		return fmt.Errorf("open db: %v", err)
	}
	defer db.Close()

	repo := nodes.NewRepository(db)
	var pid *string
	if parentID != "" {
		pid = &parentID
	}
	n, err := repo.Create(pid, typ, title, 0, "", "")
	if err != nil {
		return err
	}
	fmt.Printf("created\t%s\t%s\t%s\n", n.ID, n.Type, n.Title)
	return nil
}

func runNodeGet(vault, id string) error {
	dbPath := filepath.Join(vault, ".verstak", "index.db")
	db, err := storage.Open(dbPath)
	if err != nil {
		return fmt.Errorf("open db: %v", err)
	}
	defer db.Close()

	repo := nodes.NewRepository(db)
	n, err := repo.GetActive(id)
	if err != nil {
		return err
	}
	fmt.Printf("id=%s\n", n.ID)
	fmt.Printf("parent=%v\n", ptrStr(n.ParentID))
	fmt.Printf("type=%s\n", n.Type)
	fmt.Printf("title=%s\n", n.Title)
	fmt.Printf("slug=%s\n", n.Slug)
	fmt.Printf("revision=%d\n", n.Revision)
	fmt.Printf("created=%s\n", n.CreatedAt)
	fmt.Printf("updated=%s\n", n.UpdatedAt)
	meta, _ := repo.MetaList(n.ID)
	for _, m := range meta {
		fmt.Printf("meta:%s=%s\n", m.Key, m.Value)
	}
	return nil
}

func runNodeList(vault, parentID string) error {
	dbPath := filepath.Join(vault, ".verstak", "index.db")
	db, err := storage.Open(dbPath)
	if err != nil {
		return fmt.Errorf("open db: %v", err)
	}
	defer db.Close()

	repo := nodes.NewRepository(db)
	var list []nodes.Node
	if parentID == "" {
		list, err = repo.ListRoots(false)
	} else {
		list, err = repo.ListChildren(parentID, false)
	}
	if err != nil {
		return err
	}
	for _, n := range list {
		fmt.Printf("%s\t%s\t%s\n", n.ID, n.Type, n.Title)
	}
	return nil
}

func runNodeMove(vault, id, parentID string, sortOrder int) error {
	dbPath := filepath.Join(vault, ".verstak", "index.db")
	db, err := storage.Open(dbPath)
	if err != nil {
		return fmt.Errorf("open db: %v", err)
	}
	defer db.Close()

	repo := nodes.NewRepository(db)
	var pid *string
	if parentID != "" {
		pid = &parentID
	}
	if err := repo.Move(id, pid, sortOrder); err != nil {
		return err
	}
	fmt.Println("moved")
	return nil
}

func runNodeDelete(vault, id string) error {
	dbPath := filepath.Join(vault, ".verstak", "index.db")
	db, err := storage.Open(dbPath)
	if err != nil {
		return fmt.Errorf("open db: %v", err)
	}
	defer db.Close()

	repo := nodes.NewRepository(db)
	if err := repo.SoftDelete(id); err != nil {
		return err
	}
	fmt.Println("deleted")
	return nil
}

func nodeUsage() {
	fmt.Println("verstak node — manage nodes in the vault")
	fmt.Println()
	fmt.Println("Usage: verstak node <command> [options]")
	fmt.Println()
	fmt.Println("Commands:")
	fmt.Println("  create --type TYPE --title TITLE [--parent ID]   Create a node")
	fmt.Println("  list [--parent ID]                               List root or children")
	fmt.Println("  get --id ID                                      Show node details")
	fmt.Println("  move --id ID [--parent ID] [--sort N]            Move node")
	fmt.Println("  delete --id ID                                   Soft-delete node")
	fmt.Println()
	fmt.Println("Types: space, case, folder, note, document, file, action, recipe, secret, worklog, link")
}

func ptrStr(p *string) string {
	if p == nil {
		return ""
	}
	return *p
}