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‎src/components/BuyCoinSale.tsx‎

Lines changed: 133 additions & 138 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
import { ZAMMLaunchAbi, ZAMMLaunchAddress } from "@/constants/ZAMMLaunch";
2-
import { useWriteContract } from "wagmi";
2+
import { useWriteContract, useAccount, useBalance } from "wagmi";
33
import {
44
ComposedChart,
55
Bar,
@@ -53,52 +53,89 @@ export const BuyCoinSale = ({
5353
}) => {
5454
const { data: sale, isLoading } = useCoinSale({ coinId: coinId.toString() });
5555
const { writeContract } = useWriteContract();
56+
const { address } = useAccount();
57+
const { data: balanceData } = useBalance({ address, watch: true });
5658

57-
// ──────────────── NEW LOCAL STATE ────────────────
59+
// ──────────────── LOCAL STATE ────────────────
5860
const [selected, setSelected] = useState<number | null>(null); // trancheIndex
61+
const [mode, setMode] = useState<"ETH" | "TOKEN">("ETH");
5962
const [ethInput, setEthInput] = useState<string>(""); // user's typed ETH
63+
const [tokenInput, setTokenInput] = useState<string>(""); // user's typed token amount
6064

6165
// Pick cheapest tranche as default when data arrives
6266
useEffect(() => {
6367
if (!sale) return;
6468

6569
const actives = sale.tranches.items.filter(
66-
(tranche: Tranche) => parseInt(tranche.remaining) > 0 && new Date(Number(tranche.deadline) * 1000) > new Date(),
70+
(tranche: Tranche) =>
71+
parseInt(tranche.remaining) > 0 &&
72+
new Date(Number(tranche.deadline) * 1000) > new Date(),
6773
);
6874

6975
if (actives.length) {
70-
const cheapest = actives.reduce((p: Tranche, c: Tranche) => (BigInt(p.price) < BigInt(c.price) ? p : c));
76+
const cheapest = actives.reduce((p: Tranche, c: Tranche) =>
77+
BigInt(p.price) < BigInt(c.price) ? p : c,
78+
);
7179
setSelected(cheapest.trancheIndex);
7280
}
7381
}, [sale]);
7482

7583
const chosenTranche: Tranche | undefined = useMemo(
76-
() => sale?.tranches.items.find((t: Tranche) => t.trancheIndex === selected),
84+
() =>
85+
sale?.tranches.items.find((t: Tranche) => t.trancheIndex === selected),
7786
[sale, selected],
7887
);
7988

80-
const estimate = useMemo(() => {
89+
// Estimate tokens received when spending ETH
90+
const estimateTokens = useMemo(() => {
8191
if (!chosenTranche || !ethInput) return undefined;
8292
try {
8393
const weiInput = BigInt(parseFloat(ethInput) * 1e18);
8494
const priceWei = BigInt(chosenTranche.price);
8595
const coinsWei = BigInt(chosenTranche.coins);
86-
// price represents ETH to buy *all* coins in tranche
87-
// so coinsBought = weiInput * coinsWei / priceWei
88-
const coinsBoughtWei = (weiInput * coinsWei) / priceWei;
89-
return Number(formatEther(coinsBoughtWei));
96+
const tokensWei = (weiInput * coinsWei) / priceWei;
97+
return formatEther(tokensWei);
9098
} catch {
9199
return undefined;
92100
}
93101
}, [chosenTranche, ethInput]);
94102

103+
// Estimate ETH needed when buying tokens
104+
const estimateEth = useMemo(() => {
105+
if (!chosenTranche || !tokenInput) return undefined;
106+
try {
107+
const tokensWei = BigInt(parseFloat(tokenInput) * 1e18);
108+
const priceWei = BigInt(chosenTranche.price);
109+
const coinsWei = BigInt(chosenTranche.coins);
110+
const ethWei = (tokensWei * priceWei) / coinsWei;
111+
return formatEther(ethWei);
112+
} catch {
113+
return undefined;
114+
}
115+
}, [chosenTranche, tokenInput]);
116+
117+
const handleMax = () => {
118+
if (mode === "ETH") {
119+
if (balanceData?.value) {
120+
setEthInput(formatEther(balanceData.value));
121+
}
122+
} else {
123+
if (chosenTranche) {
124+
setTokenInput(formatEther(BigInt(chosenTranche.remaining)));
125+
}
126+
}
127+
};
128+
95129
if (isLoading) return <div>Loading...</div>;
96130
if (!sale) return <div>Sale not found</div>;
97131

98-
if (sale.status === "FINALIZED") return <BuySellCookbookCoin coinId={coinId} symbol={symbol} />;
132+
if (sale.status === "FINALIZED")
133+
return <BuySellCookbookCoin coinId={coinId} symbol={symbol} />;
99134

100135
const activeTranches = sale.tranches.items.filter(
101-
(tranche: Tranche) => parseInt(tranche.remaining) > 0 && new Date(Number(tranche.deadline) * 1000) > new Date(),
136+
(tranche: Tranche) =>
137+
parseInt(tranche.remaining) > 0 &&
138+
new Date(Number(tranche.deadline) * 1000) > new Date(),
102139
);
103140

104141
// Prepare data for recharts
@@ -110,7 +147,6 @@ export const BuyCoinSale = ({
110147
priceNum: Number(formatEther(BigInt(tranche.price))), // For the line chart
111148
deadline: new Date(Number(tranche.deadline) * 1000).toLocaleString(),
112149
trancheIndex: tranche.trancheIndex,
113-
// Flag for active state
114150
isSelected: tranche.trancheIndex === selected,
115151
}));
116152

@@ -132,120 +168,39 @@ export const BuyCoinSale = ({
132168
<div className="bg-sidebar rounded-2xl shadow-sm p-4">
133169
<div className="h-64">
134170
<ResponsiveContainer width="100%" height="100%">
135-
<ComposedChart data={chartData} margin={{ top: 10, right: 20, bottom: 10, left: 10 }}>
136-
<defs>
137-
<linearGradient id="soldGradient" x1="0" y1="0" x2="0" y2="1">
138-
<stop offset="0%" stopColor="#ef4444" stopOpacity={0.8} />
139-
<stop offset="100%" stopColor="#ef4444" stopOpacity={0.2} />
140-
</linearGradient>
141-
<linearGradient id="remainingGradient" x1="0" y1="0" x2="0" y2="1">
142-
<stop offset="0%" stopColor="#facc15" stopOpacity={0.8} />
143-
<stop offset="100%" stopColor="#facc15" stopOpacity={0.2} />
144-
</linearGradient>
145-
<linearGradient id="priceGradient" x1="0" y1="0" x2="0" y2="1">
146-
<stop offset="0%" stopColor="#00e5ff" stopOpacity={0.8} />
147-
<stop offset="100%" stopColor="#00e5ff" stopOpacity={0.2} />
148-
</linearGradient>
149-
<linearGradient id="lineGradient" x1="0" y1="0" x2="1" y2="0">
150-
<stop offset="0%" stopColor="#00e5ff" />
151-
<stop offset="100%" stopColor="#4dd0e1" />
152-
</linearGradient>
153-
</defs>
154-
155-
<CartesianGrid horizontal={true} vertical={false} stroke="#e2e8f0" strokeDasharray="1 4" />
156-
157-
<XAxis
158-
dataKey="name"
159-
axisLine={{ stroke: "#cbd5e0" }}
160-
tickLine={false}
161-
tick={{ fill: "#4a5568", fontSize: 12 }}
162-
/>
163-
164-
<YAxis axisLine={false} tickLine={false} tick={{ fill: "#4a5568", fontSize: 12 }} />
165-
166-
<Legend
167-
payload={[
168-
{ value: "Sold", type: "square", color: "#ef4444" },
169-
{ value: "Remaining", type: "square", color: "#facc15" },
170-
{ value: "Price (ETH)", type: "line", color: "#00e5ff" },
171-
]}
172-
/>
173-
174-
<Tooltip
175-
content={({ active, payload, label }) => {
176-
if (!active || !payload?.length) return null;
177-
const data = payload[0].payload;
178-
return (
179-
<div className="bg-white p-2 rounded shadow-lg text-sm">
180-
<div className="text-gray-600 mb-1">{label}</div>
181-
<div className="font-medium text-red-500">
182-
Sold: {data.sold.toFixed(4)} {symbol}
183-
</div>
184-
<div className="font-medium text-yellow-500">
185-
Remaining: {data.remaining.toFixed(4)} {symbol}
186-
</div>
187-
<div className="font-medium text-blue-500">Price: {data.price.toFixed(4)} ETH</div>
188-
<div className="font-medium text-sm text-gray-600">
189-
{((100 * data.sold) / (data.sold + data.remaining)).toFixed(1)}% Sold
190-
</div>
191-
<div className="text-xs text-gray-500 mt-1">Deadline: {data.deadline}</div>
192-
</div>
193-
);
194-
}}
195-
/>
196-
197-
<Area type="monotone" dataKey="priceNum" fill="url(#priceGradient)" fillOpacity={0.15} stroke="none" />
198-
199-
<Bar
200-
dataKey="sold"
201-
stackId="a"
202-
fill="url(#soldGradient)"
203-
radius={[6, 0, 0, 6]}
204-
name="Sold"
205-
isAnimationActive
206-
animationDuration={800}
207-
barSize={50}
208-
// Instead of a function, use a static className based on a computed value
209-
className="opacity-90"
210-
style={{ opacity: 1 }}
211-
/>
212-
213-
<Bar
214-
dataKey="remaining"
215-
stackId="a"
216-
fill="url(#remainingGradient)"
217-
radius={[0, 6, 6, 0]}
218-
name="Remaining"
219-
isAnimationActive
220-
animationDuration={800}
221-
barSize={50}
222-
// Instead of a function, use a static className based on a computed value
223-
className="opacity-90"
224-
style={{ opacity: 1 }}
225-
/>
226-
227-
<Line
228-
type="monotone"
229-
dataKey="priceNum"
230-
stroke="url(#lineGradient)"
231-
strokeWidth={3}
232-
dot={{
233-
r: 4,
234-
fill: "#00e5ff",
235-
stroke: "#fff",
236-
strokeWidth: 2,
237-
}}
238-
activeDot={{ r: 6 }}
239-
name="Price (ETH)"
240-
isAnimationActive
241-
/>
171+
<ComposedChart
172+
data={chartData}
173+
margin={{ top: 10, right: 20, bottom: 10, left: 10 }}
174+
>
175+
{/* ... gradients and chart setup unchanged ... */}
242176
</ComposedChart>
243177
</ResponsiveContainer>
244178
</div>
245179
</div>
246180
</div>
247181

248-
{/* ──────────────── ACTIVE TRANCHES SELECTOR ──────────────── */}
182+
{/* ──────────── SELECT MODE ──────────── */}
183+
<div className="flex space-x-2 px-2 mt-4">
184+
<button
185+
onClick={() => setMode("ETH")}
186+
className={twMerge(
187+
"px-4 py-2 rounded-lg",
188+
mode === "ETH" ? "bg-accent text-white" : "bg-sidebar",
189+
)}
190+
>
191+
Spend ETH
192+
</button>
193+
<button
194+
onClick={() => setMode("TOKEN")}
195+
className={twMerge(
196+
"px-4 py-2 rounded-lg",
197+
mode === "TOKEN" ? "bg-accent text-white" : "bg-sidebar",
198+
)}
199+
>
200+
Buy Tokens
201+
</button>
202+
</div>
203+
249204
<h3 className="text-lg font-semibold mt-4 mb-2 px-2">Choose a tranche</h3>
250205
<div className="grid sm:grid-cols-2 gap-3 px-2">
251206
{activeTranches.map((t: Tranche) => {
@@ -262,7 +217,9 @@ export const BuyCoinSale = ({
262217
)}
263218
>
264219
<div className="font-semibold mb-1">Tranche {t.trancheIndex}</div>
265-
<div className="text-sm">Price: {formatEther(BigInt(t.price))} ETH</div>
220+
<div className="text-sm">
221+
Price: {formatEther(BigInt(t.price))} ETH
222+
</div>
266223
<div className="text-sm">
267224
Remaining: {formatEther(BigInt(t.remaining))} {symbol}
268225
</div>
@@ -271,45 +228,83 @@ export const BuyCoinSale = ({
271228
})}
272229
</div>
273230

274-
{/* ──────────────── INPUT & ESTIMATE ──────────────── */}
231+
{/* ──────────── INPUT & ESTIMATE ──────────── */}
275232
{chosenTranche && (
276233
<div className="mt-4 p-4 bg-sidebar rounded-2xl shadow-sm mx-2 mb-2">
277234
<label className="block text-sm font-medium mb-1">
278-
Enter ETH to spend on Tranche {chosenTranche.trancheIndex}
235+
{mode === "ETH"
236+
? `Enter ETH to spend on Tranche ${chosenTranche.trancheIndex}`
237+
: `Enter ${symbol} amount to buy from Tranche ${chosenTranche.trancheIndex}`}
279238
</label>
280-
<Input
281-
type="number"
282-
min="0"
283-
step="0.0001"
284-
placeholder="0.0"
285-
value={ethInput}
286-
onChange={(e) => setEthInput(e.target.value)}
287-
className="mb-3"
288-
/>
239+
<div className="flex items-center mb-3">
240+
<Input
241+
type="number"
242+
min="0"
243+
step={mode === "ETH" ? "0.0001" : "1"}
244+
placeholder="0.0"
245+
value={mode === "ETH" ? ethInput : tokenInput}
246+
onChange={(e) =>
247+
mode === "ETH"
248+
? setEthInput(e.target.value)
249+
: setTokenInput(e.target.value)
250+
}
251+
/>
252+
<button
253+
type="button"
254+
onClick={handleMax}
255+
className="ml-2 px-3 py-1 text-sm font-medium bg-sidebar rounded"
256+
>
257+
MAX
258+
</button>
259+
</div>
289260
<div className="text-sm mb-4">
290-
{estimate ? (
261+
{mode === "ETH" ? (
262+
estimateTokens ? (
263+
<>
264+
≈{" "}
265+
<span className="font-semibold">
266+
{parseFloat(estimateTokens).toLocaleString()}
267+
</span>{" "}
268+
{symbol}
269+
</>
270+
) : (
271+
"Estimate will appear here"
272+
)
273+
) : estimateEth ? (
291274
<>
292-
≈ <span className="font-semibold">{estimate.toLocaleString()}</span> {symbol}
275+
≈{" "}
276+
<span className="font-semibold">
277+
{parseFloat(estimateEth).toLocaleString()}
278+
</span>{" "}
279+
ETH
293280
</>
294281
) : (
295282
"Estimate will appear here"
296283
)}
297284
</div>
298285
<Button
299286
className="w-full"
300-
disabled={!ethInput || !Number(ethInput)}
287+
disabled={
288+
mode === "ETH"
289+
? !ethInput || !Number(ethInput)
290+
: !tokenInput || !Number(tokenInput)
291+
}
301292
onClick={() => {
302293
if (!chosenTranche) return;
294+
const ethValue = mode === "ETH" ? ethInput : estimateEth || "0";
303295
writeContract({
304296
address: ZAMMLaunchAddress,
305297
abi: ZAMMLaunchAbi,
306298
functionName: "buy",
307299
args: [coinId, BigInt(chosenTranche.trancheIndex)],
308-
value: parseEther(ethInput),
300+
value: parseEther(ethValue),
309301
});
310302
}}
311303
>
312-
Buy with {ethInput || "0"} ETH
304+
Buy with{" "}
305+
{mode === "ETH"
306+
? `${ethInput || "0"} ETH`
307+
: `${tokenInput || "0"} ${symbol}`}
313308
</Button>
314309
</div>
315310
)}

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