93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
package items
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import (
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"dk/internal/database"
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"fmt"
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"zombiezen.com/go/sqlite"
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)
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// Builder provides a fluent interface for creating items
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type Builder struct {
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item *Item
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}
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// NewBuilder creates a new item builder
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func NewBuilder() *Builder {
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return &Builder{
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item: &Item{},
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}
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}
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// WithType sets the item type
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func (b *Builder) WithType(itemType int) *Builder {
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b.item.Type = itemType
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return b
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}
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// WithName sets the item name
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func (b *Builder) WithName(name string) *Builder {
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b.item.Name = name
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return b
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}
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// WithValue sets the item value
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func (b *Builder) WithValue(value int) *Builder {
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b.item.Value = value
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return b
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}
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// WithAtt sets the item attack/defense value
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func (b *Builder) WithAtt(att int) *Builder {
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b.item.Att = att
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return b
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}
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// WithSpecial sets the item special attributes
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func (b *Builder) WithSpecial(special string) *Builder {
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b.item.Special = special
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return b
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}
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// Create saves the item to the database and returns it
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func (b *Builder) Create() (*Item, error) {
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// Use a transaction to ensure we can get the ID
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var item *Item
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err := database.Transaction(func(tx *database.Tx) error {
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query := `INSERT INTO items (type, name, value, att, special)
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VALUES (?, ?, ?, ?, ?)`
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if err := tx.Exec(query, b.item.Type, b.item.Name, b.item.Value, b.item.Att, b.item.Special); err != nil {
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return fmt.Errorf("failed to insert item: %w", err)
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}
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// Get the last inserted ID within the same transaction
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var lastID int
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err := tx.Query("SELECT last_insert_rowid()", func(stmt *sqlite.Stmt) error {
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lastID = stmt.ColumnInt(0)
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return nil
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})
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if err != nil {
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return fmt.Errorf("failed to get last insert ID: %w", err)
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}
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// Create the item with the ID
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item = &Item{
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ID: lastID,
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Type: b.item.Type,
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Name: b.item.Name,
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Value: b.item.Value,
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Att: b.item.Att,
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Special: b.item.Special,
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}
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("failed to create item: %w", err)
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}
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return item, nil
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}
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