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import { IOrderOfferJSON, OrderOffer } from './OrderOffer';
/**
* Order negotiation fields for order contract negotiation.
* Follows the same pattern as NegotiationFields with Single and Disjoint variants.
*/
export abstract class OrderNegotiationFields {
public static deserialize(buf: Buffer): OrderNegotiationFields {
const reader = new BufferReader(buf);
const discriminator = Number(reader.readBigSize());
switch (discriminator) {
case 0:
return SingleOrderNegotiationFields.deserialize(buf);
case 1:
return DisjointOrderNegotiationFields.deserialize(buf);
default:
throw new Error(
`Invalid OrderNegotiationFields discriminator: ${discriminator}. Must be 0 (Single) or 1 (Disjoint)`,
);
}
}
/**
* Creates OrderNegotiationFields from JSON data
* @param json JSON object representing order negotiation fields
*/
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types, @typescript-eslint/no-explicit-any
public static fromJSON(json: any): OrderNegotiationFields {
Iif (!json || typeof json !== 'object') {
throw new Error('Invalid JSON input for OrderNegotiationFields');
}
const variant = json.variant;
switch (variant) {
case 'Single':
return SingleOrderNegotiationFields.fromJSON(json);
case 'Disjoint':
return DisjointOrderNegotiationFields.fromJSON(json);
default:
throw new Error(
`Unknown order negotiation fields variant: ${variant}. Must be 'Single' or 'Disjoint'`,
);
}
}
public abstract variant: 'Single' | 'Disjoint';
public abstract discriminator: number;
public abstract serialize(): Buffer;
public abstract toJSON(): IOrderNegotiationFieldsJSON;
}
/**
* Order negotiation fields for contract based on a single event (basic/empty).
*/
export class SingleOrderNegotiationFields extends OrderNegotiationFields {
/**
* Creates a SingleOrderNegotiationFields from JSON data
* @param json JSON object representing single order negotiation fields
*/
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types, @typescript-eslint/no-explicit-any
public static fromJSON(json: any): SingleOrderNegotiationFields {
const instance = new SingleOrderNegotiationFields();
Iif (json.variant !== 'Single') {
throw new Error(
`Invalid variant for SingleOrderNegotiationFields: expected 'Single', got ${json.variant}`,
);
}
// Single order negotiation fields are currently empty/basic
return instance;
}
/**
* Deserializes single order negotiation fields
* @param buf
*/
public static deserialize(buf: Buffer): SingleOrderNegotiationFields {
const instance = new SingleOrderNegotiationFields();
const reader = new BufferReader(buf);
reader.readBigSize(); // read discriminator (0)
// Single order negotiation fields are currently empty
return instance;
}
public variant = 'Single' as const;
public discriminator = 0;
/**
* Converts single order negotiation fields to JSON
*/
public toJSON(): ISingleOrderNegotiationFieldsJSON {
return {
variant: this.variant,
};
}
/**
* Serializes the single order negotiation fields into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeBigSize(this.discriminator);
// Single order negotiation fields are currently empty
return writer.toBuffer();
}
}
/**
* Order negotiation fields for contract based on multiple events.
*/
export class DisjointOrderNegotiationFields extends OrderNegotiationFields {
/**
* Creates a DisjointOrderNegotiationFields from JSON data
* @param json JSON object representing disjoint order negotiation fields
*/
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types, @typescript-eslint/no-explicit-any
public static fromJSON(json: any): DisjointOrderNegotiationFields {
const instance = new DisjointOrderNegotiationFields();
Iif (json.variant !== 'Disjoint') {
throw new Error(
`Invalid variant for DisjointOrderNegotiationFields: expected 'Disjoint', got ${json.variant}`,
);
}
Eif (!json.orderOffer) {
throw new Error(
'DisjointOrderNegotiationFields requires orderOffer field',
);
}
instance.orderOffer = OrderOffer.fromJSON
? OrderOffer.fromJSON(json.orderOffer)
: OrderOffer.deserialize(Buffer.from(json.orderOffer, 'hex'));
return instance;
}
/**
* Deserializes disjoint order negotiation fields
* @param buf
*/
public static deserialize(buf: Buffer): DisjointOrderNegotiationFields {
const instance = new DisjointOrderNegotiationFields();
const reader = new BufferReader(buf);
reader.readBigSize(); // read discriminator (1)
const orderOfferLength = reader.readBigSize();
const orderOfferBuf = reader.readBytes(Number(orderOfferLength));
instance.orderOffer = OrderOffer.deserialize(orderOfferBuf);
return instance;
}
public variant = 'Disjoint' as const;
public discriminator = 1;
public orderOffer: OrderOffer;
/**
* Converts disjoint order negotiation fields to JSON
*/
public toJSON(): IDisjointOrderNegotiationFieldsJSON {
return {
variant: this.variant,
orderOffer: this.orderOffer.toJSON(),
};
}
/**
* Serializes the disjoint order negotiation fields into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeBigSize(this.discriminator);
const orderOfferData = this.orderOffer.serialize();
writer.writeBigSize(orderOfferData.length);
writer.writeBytes(orderOfferData);
return writer.toBuffer();
}
}
export type IOrderNegotiationFieldsJSON =
| ISingleOrderNegotiationFieldsJSON
| IDisjointOrderNegotiationFieldsJSON;
export interface ISingleOrderNegotiationFieldsJSON {
variant: 'Single';
}
export interface IDisjointOrderNegotiationFieldsJSON {
variant: 'Disjoint';
orderOffer: IOrderOfferJSON;
}
// Legacy exports for backward compatibility - map to new structure
export const OrderNegotiationFieldsV0 = SingleOrderNegotiationFields; // V0 was basic/empty
export const OrderNegotiationFieldsV1 = DisjointOrderNegotiationFields; // V1 had OrderOffer
export type IOrderNegotiationFieldsV0JSON = ISingleOrderNegotiationFieldsJSON;
export type IOrderNegotiationFieldsV1JSON = IDisjointOrderNegotiationFieldsJSON;
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