feat: add invoice and alternative_componen management functionality

internal/repositories/invoice_repository.go

@@ -0,0 +1,52 @@
+package repositories
+
+import (
+	"context"
+	"wm-backend/internal/mapper"
+	"wm-backend/internal/models"
+	db "wm-backend/sqlc_gen"
+)
+
+func CreateInvoice(ctx context.Context, queries *db.Queries, body models.Invoice) (models.Invoice, error) {
+	result, err := queries.CreateInvoice(ctx, *mapper.ToModelInvoice(&body))
+	if err != nil {
+		return models.Invoice{}, err
+	}
+	return *mapper.ToDomainInvoice(result), nil
+}
+
+func GetInvoiceByID(ctx context.Context, queries *db.Queries, id int64) (models.Invoice, error) {
+	result, err := queries.GetInvoiceByID(ctx, id)
+	if err != nil {
+		return models.Invoice{}, err
+	}
+	return *mapper.ToDomainInvoice(result), nil
+}
+
+func ListInvoices(ctx context.Context, queries *db.Queries) ([]models.Invoice, error) {
+	results, err := queries.ListInvoices(ctx)
+	if err != nil {
+		return nil, err
+	}
+	var items []models.Invoice
+	for _, r := range results {
+		items = append(items, *mapper.ToDomainInvoice(r))
+	}
+	return items, nil
+}
+
+func UpdateInvoice(ctx context.Context, queries *db.Queries, body models.Invoice) (models.Invoice, error) {
+	result, err := queries.UpdateInvoice(ctx, *mapper.ToUpdateModelInvoice(&body))
+	if err != nil {
+		return models.Invoice{}, err
+	}
+	return *mapper.ToDomainInvoice(result), nil
+}
+
+func DeleteInvoice(ctx context.Context, queries *db.Queries, id int64) (int64, error) {
+	rowsAffected, err := queries.DeleteInvoice(ctx, id)
+	if err != nil {
+		return rowsAffected, err
+	}
+	return rowsAffected, nil
+}