/**
* Internal dependencies
*/
import { DEFAULT_STATE, STATUS } from './constants';
import { ActionType, ACTION } from './actions';
import type { CheckoutStateContextState, PaymentResultDataType } from './types';
/**
* Reducer for the checkout state
*/
export const reducer = (
state = DEFAULT_STATE,
{
redirectUrl,
type,
customerId,
orderId,
orderNotes,
extensionData,
useShippingAsBilling,
shouldCreateAccount,
data,
}: ActionType
): CheckoutStateContextState => {
let newState = state;
switch ( type ) {
case ACTION.SET_PRISTINE:
newState = DEFAULT_STATE;
break;
case ACTION.SET_IDLE:
newState =
state.status !== STATUS.IDLE
? {
...state,
status: STATUS.IDLE,
}
: state;
break;
case ACTION.SET_REDIRECT_URL:
newState =
redirectUrl !== undefined && redirectUrl !== state.redirectUrl
? {
...state,
redirectUrl,
}
: state;
break;
case ACTION.SET_PROCESSING_RESPONSE:
newState = {
...state,
processingResponse: data as PaymentResultDataType,
};
break;
case ACTION.SET_COMPLETE:
newState =
state.status !== STATUS.COMPLETE
? {
...state,
status: STATUS.COMPLETE,
redirectUrl:
typeof data?.redirectUrl === 'string'
? data.redirectUrl
: state.redirectUrl,
}
: state;
break;
case ACTION.SET_PROCESSING:
newState =
state.status !== STATUS.PROCESSING
? {
...state,
status: STATUS.PROCESSING,
hasError: false,
}
: state;
// clear any error state.
newState =
newState.hasError === false
? newState
: { ...newState, hasError: false };
break;
case ACTION.SET_BEFORE_PROCESSING:
newState =
state.status !== STATUS.BEFORE_PROCESSING
? {
...state,
status: STATUS.BEFORE_PROCESSING,
hasError: false,
}
: state;
break;
case ACTION.SET_AFTER_PROCESSING:
newState =
state.status !== STATUS.AFTER_PROCESSING
? {
...state,
status: STATUS.AFTER_PROCESSING,
}
: state;
break;
case ACTION.SET_HAS_ERROR:
newState = state.hasError
? state
: {
...state,
hasError: true,
};
newState =
state.status === STATUS.PROCESSING ||
state.status === STATUS.BEFORE_PROCESSING
? {
...newState,
status: STATUS.IDLE,
}
: newState;
break;
case ACTION.SET_NO_ERROR:
newState = state.hasError
? {
...state,
hasError: false,
}
: state;
break;
case ACTION.INCREMENT_CALCULATING:
newState = {
...state,
calculatingCount: state.calculatingCount + 1,
};
break;
case ACTION.DECREMENT_CALCULATING:
newState = {
...state,
calculatingCount: Math.max( 0, state.calculatingCount - 1 ),
};
break;
case ACTION.SET_CUSTOMER_ID:
newState =
customerId !== undefined
? {
...state,
customerId,
}
: state;
break;
case ACTION.SET_ORDER_ID:
newState =
orderId !== undefined
? {
...state,
orderId,
}
: state;
break;
case ACTION.SET_SHIPPING_ADDRESS_AS_BILLING_ADDRESS:
if (
useShippingAsBilling !== undefined &&
useShippingAsBilling !== state.useShippingAsBilling
) {
newState = {
...state,
useShippingAsBilling,
};
}
break;
case ACTION.SET_SHOULD_CREATE_ACCOUNT:
if (
shouldCreateAccount !== undefined &&
shouldCreateAccount !== state.shouldCreateAccount
) {
newState = {
...state,
shouldCreateAccount,
};
}
break;
case ACTION.SET_ORDER_NOTES:
if ( orderNotes !== undefined && state.orderNotes !== orderNotes ) {
newState = {
...state,
orderNotes,
};
}
break;
case ACTION.SET_EXTENSION_DATA:
if (
extensionData !== undefined &&
state.extensionData !== extensionData
) {
newState = {
...state,
extensionData,
};
}
break;
}
// automatically update state to idle from pristine as soon as it
// initially changes.
if (
newState !== state &&
type !== ACTION.SET_PRISTINE &&
newState.status === STATUS.PRISTINE
) {
newState.status = STATUS.IDLE;
}
return newState;
};