@towns-protocol/sdk/dist/views/streams/userStreamsView.js

For more details, visit the following resources:

import { ObservableRecord } from '../../observable/observableRecord';
export class UserStreamsView extends ObservableRecord {
    constructor() {
        super({
            makeDefault: (userStreamId) => ({
                streamId: userStreamId,
                streamMemberships: {},
                tipsSent: {},
                tipsReceived: {},
                tipsSentCount: {},
                tipsReceivedCount: {},
                tokenTransfers: [],
            }),
        });
    }
    setMembership(userStreamId, streamId, membership) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    streamMemberships: {
                        ...prevStream.streamMemberships,
                        [streamId]: membership,
                    },
                },
            };
        });
    }
    setTips(userStreamId, tips) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    ...tips,
                },
            };
        });
    }
    prependTokenTransfer(userStreamId, tokenTransfer) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    tokenTransfers: [tokenTransfer, ...prevStream.tokenTransfers],
                },
            };
        });
    }
    appendTokenTransfer(userStreamId, tokenTransfer) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    tokenTransfers: [...prevStream.tokenTransfers, tokenTransfer],
                },
            };
        });
    }
    appendTipSent(userStreamId, currency, amount) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    tipsSent: {
                        ...prevStream.tipsSent,
                        [currency]: (prevStream.tipsSent[currency] ?? 0n) + amount,
                    },
                    tipsSentCount: {
                        ...prevStream.tipsSentCount,
                        [currency]: (prevStream.tipsSentCount[currency] ?? 0n) + 1n,
                    },
                },
            };
        });
    }
    appendTipReceived(userStreamId, currency, amount) {
        this.set((prev) => {
            const prevStream = prev[userStreamId] ?? this.makeDefault(userStreamId);
            return {
                ...prev,
                [userStreamId]: {
                    ...prevStream,
                    tipsReceived: {
                        ...prevStream.tipsReceived,
                        [currency]: (prevStream.tipsReceived[currency] ?? 0n) + amount,
                    },
                    tipsReceivedCount: {
                        ...prevStream.tipsReceivedCount,
                        [currency]: (prevStream.tipsReceivedCount[currency] ?? 0n) + 1n,
                    },
                },
            };
        });
    }
}
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