112 lines
2.3 KiB
Go
112 lines
2.3 KiB
Go
package towns
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import (
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"fmt"
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"dk/internal/database"
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"zombiezen.com/go/sqlite"
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)
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// Builder provides a fluent interface for creating towns
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type Builder struct {
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town *Town
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}
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// NewBuilder creates a new town builder
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func NewBuilder() *Builder {
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return &Builder{
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town: &Town{},
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}
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}
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// WithName sets the town name
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func (b *Builder) WithName(name string) *Builder {
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b.town.Name = name
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return b
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}
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// WithX sets the X coordinate
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func (b *Builder) WithX(x int) *Builder {
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b.town.X = x
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return b
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}
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// WithY sets the Y coordinate
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func (b *Builder) WithY(y int) *Builder {
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b.town.Y = y
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return b
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}
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// WithCoordinates sets both X and Y coordinates
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func (b *Builder) WithCoordinates(x, y int) *Builder {
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b.town.X = x
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b.town.Y = y
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return b
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}
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// WithInnCost sets the inn cost
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func (b *Builder) WithInnCost(cost int) *Builder {
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b.town.InnCost = cost
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return b
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}
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// WithMapCost sets the map cost
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func (b *Builder) WithMapCost(cost int) *Builder {
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b.town.MapCost = cost
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return b
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}
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// WithTPCost sets the teleport cost
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func (b *Builder) WithTPCost(cost int) *Builder {
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b.town.TPCost = cost
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return b
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}
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// WithShopList sets the shop list as a comma-separated string
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func (b *Builder) WithShopList(shopList string) *Builder {
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b.town.ShopList = shopList
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return b
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}
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// WithShopItems sets the shop items from a slice of item IDs
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func (b *Builder) WithShopItems(items []string) *Builder {
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b.town.SetShopItems(items)
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return b
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}
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// Create saves the town to the database and returns the created town with ID
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func (b *Builder) Create() (*Town, error) {
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// Use a transaction to ensure we can get the ID
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var town *Town
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err := database.Transaction(func(tx *database.Tx) error {
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query := `INSERT INTO towns (name, x, y, inn_cost, map_cost, tp_cost, shop_list)
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VALUES (?, ?, ?, ?, ?, ?, ?)`
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if err := tx.Exec(query, b.town.Name, b.town.X, b.town.Y,
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b.town.InnCost, b.town.MapCost, b.town.TPCost, b.town.ShopList); err != nil {
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return fmt.Errorf("failed to insert town: %w", err)
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}
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// Get the last insert ID
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var id int
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err := tx.Query("SELECT last_insert_rowid()", func(stmt *sqlite.Stmt) error {
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id = 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 insert ID: %w", err)
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}
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b.town.ID = id
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town = b.town
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return nil
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})
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if err != nil {
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return nil, err
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}
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return town, nil
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}
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