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feat: crypto portfolio analytics (history chart, allocation, P&L, cost basis)

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Adds the analytics half of the CoinMarketCap reference: a value-over-time
chart (GET /crypto/history, forward-filled from AssetValuation like Net
Worth's own series but scoped to crypto assets), an allocation breakdown by
coin, and stat tiles for all-time profit, total invested (cost basis), and
best/worst performer.

Deliberately no "24h" range — history is only as dense as the sync cadence
(button or once/day), so a 24h chart would be one or two points, not a
smooth intraday line. Cost basis / all-time profit / best-worst performer
aren't separate endpoints: they're trivial to derive client-side from
fields already in GET /crypto/holdings, so no redundant backend logic.

Allocation card follows the dataviz skill's categorical rule: top 7 coins
by value get a fixed-order color from the app's already-validated 8-slot
ramp, an 8th+ folds into "Other" rather than generating a new hue.

82/82 backend tests passing (3 new for /crypto/history). Verified live
against the real CoinGecko API — and caught a real holding the user had
already added directly through the UI between messages, which the smoke
test correctly left untouched while cleaning up only its own test data.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01855PiW5Wd8n4aRW4n9kByY
This commit is contained in:
ZProger
2026-08-30 04:38:51 +03:00
parent e8cd536584
commit 4ea83a9cda
14 changed files with 593 additions and 19 deletions
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8
frontend/src/hooks/useCrypto.ts
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@@ -4,17 +4,19 @@ import {
createCryptoHolding,
deleteCryptoHolding,
deleteCryptoTransaction,
fetchCryptoHistory,
fetchCryptoHoldings,
fetchCryptoTransactions,
refreshCryptoPrices,
} from "@/api/crypto";
import type { CryptoHoldingCreateInput, CryptoTransactionInput } from "@/types";
import type { CryptoHoldingCreateInput, CryptoRange, CryptoTransactionInput } from "@/types";
function useInvalidateCrypto() {
const queryClient = useQueryClient();
return () => {
queryClient.invalidateQueries({ queryKey: ["crypto-holdings"] });
queryClient.invalidateQueries({ queryKey: ["crypto-transactions"] });
queryClient.invalidateQueries({ queryKey: ["crypto-history"] });
// A crypto holding is a normal Asset under the hood — Net Worth's own
// numbers change the moment one is added/traded/repriced/removed.
queryClient.invalidateQueries({ queryKey: ["net-worth-summary"] });
@@ -25,6 +27,10 @@ export function useCryptoHoldings() {
return useQuery({ queryKey: ["crypto-holdings"], queryFn: fetchCryptoHoldings });
}
export function useCryptoHistory(range: CryptoRange) {
return useQuery({ queryKey: ["crypto-history", range], queryFn: () => fetchCryptoHistory(range) });
}
export function useCryptoTransactions(assetId: number | null) {
return useQuery({
queryKey: ["crypto-transactions", assetId],