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khata-ui/src/components/HistoryChart.tsx

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import * as React from "react";
import {
Box,
Typography,
ToggleButtonGroup,
ToggleButton,
Paper
} from "@mui/material";
import {
ChartDataPoint,
HistoryChartProps,
ChartData,
} from "../types/historyChart";
import IconButton from "@mui/material/IconButton";
import ChevronLeftIcon from "@mui/icons-material/ChevronLeft";
import ChevronRightIcon from "@mui/icons-material/ChevronRight";
const formatDisplay = (
point: ChartDataPoint,
tab: string,
comparison: boolean
) => {
const base = point.amount;
const cmp = point.compareAmount ?? 0;
const formatShort = (val: number) => {
if (tab === "monthly") {
if (val >= 100000) return `${(val / 100000).toFixed(2)}L`;
}
if (tab === "weekly") {
if (val >= 1000) return `${(val / 1000).toFixed(1)}K`;
}
return val.toLocaleString("en-IN");
};
// Only hide diff when comparison OFF or compare is undefined
if (!comparison) {
return `${formatShort(base)}`;
}
const diff = base - cmp;
const sign = diff >= 0 ? "+" : "-";
const absDiff = Math.abs(diff);
return `${formatShort(base)} (${sign}${formatShort(absDiff)})`;
};
const formatLabel = (label: string, type: string) => {
if (type === "monthly") return label;
if (type === "weekly") {
const parts = label.split(" - ");
if (parts.length === 2) {
const [start, end] = parts;
const startDay = start.split(" ")[0];
const endParts = end.split(" ");
const endDay = endParts[0];
const month = endParts[1];
return `${startDay}${endDay} ${month}`;
}
}
return label;
};
export default function HistoryChart({
header,
summary,
tabs,
data,
period,
onPeriodChange,
comparison,
setComparison,
colorScheme,
}: HistoryChartProps) {
const [activeTab, setActiveTab] = React.useState<string>(tabs[0] || "");
const handleTabChange = (_: React.MouseEvent<HTMLElement>, newTab: string | null) => {
if (newTab !== null) setActiveTab(newTab);
};
const activeDataKey = activeTab.toLowerCase() as keyof ChartData;
let rawData: ChartDataPoint[] = [];
if (activeDataKey === "daily") {
rawData = data.daily || [];
} else {
const section = data[activeDataKey];
rawData = section?.[period] || [];
}
const currentData = rawData;
const maxAmount =
currentData.length > 0
? Math.max(
...currentData.flatMap((d) =>
comparison ? [d.amount, d.compareAmount || 0] : [d.amount]
),
1
)
: 1;
const [startIndex, setStartIndex] = React.useState(0);
const visibleCountDataTabMapping = {
daily: 7,
weekly: 6,
monthly: 4,
}
const visibleCount = visibleCountDataTabMapping[activeDataKey];
const total = currentData.length;
// clamp startIndex so we always show full 5 (when possible)
const clampedStartIndex = Math.min(
startIndex,
Math.max(total - visibleCount, 0)
);
const visibleData = currentData.slice(
clampedStartIndex,
clampedStartIndex + visibleCount
);
const canGoLeft = startIndex > 0;
const canGoRight = startIndex + visibleCount < currentData.length;
const handlePrev = () => {
if (canGoLeft) setStartIndex((prev) => prev - visibleCount);
};
const handleNext = () => {
if (canGoRight) setStartIndex((prev) => prev + visibleCount);
};
return (
<Paper
sx={{
p: { xs: 2, sm: 4 },
borderRadius: 4,
width: "100%",
boxShadow: "none",
border: "1px solid",
borderColor: "divider",
bgcolor: colorScheme.light,
}}
>
<Typography variant="h6" fontWeight={700} gutterBottom color={colorScheme.text}>
{header}
</Typography>
{summary && (
<Typography variant="body2" color="text.secondary" sx={{ mb: 3 }}>
{summary}
</Typography>
)}
<ToggleButtonGroup
value={activeTab}
exclusive
onChange={handleTabChange}
fullWidth
sx={{ mb: 4 }}
>
{tabs.map((tab) => (
<ToggleButton key={tab} value={tab}>
{tab}
</ToggleButton>
))}
</ToggleButtonGroup>
<Box
sx={{
display: "flex",
alignItems: "center",
justifyContent: "space-between",
mb: 3
}}
>
{/* Rolling / Calendar */}
<ToggleButtonGroup
value={period}
exclusive
onChange={(_, v) => v && onPeriodChange(v)}
size="small"
>
<ToggleButton value="rolling">Rolling</ToggleButton>
<ToggleButton
value="calendar"
disabled={activeDataKey === "daily"}
>
Calendar
</ToggleButton>
</ToggleButtonGroup>
{/* Compare toggle */}
<ToggleButton
value="compare"
selected={comparison}
onChange={() => setComparison(!comparison)}
size="small"
sx={{
textTransform: "none",
borderRadius: 2,
px: 2,
// OFF
color: "text.secondary",
border: "1px solid",
borderColor: "divider",
// ON
"&.Mui-selected": {
color: "white",
bgcolor: "success.main",
borderColor: "success.main"
},
"&.Mui-selected:hover": {
bgcolor: "success.dark"
}
}}
>
Compare
</ToggleButton>
</Box>
{currentData.length > 0 ? (
<Box sx={{ position: "relative", mt: 4 }}>
{/* LEFT ARROW */}
{canGoLeft && (
<IconButton
onClick={handlePrev}
size="small"
sx={{
position: "absolute",
left: 0,
top: "50%",
transform: "translateY(-50%)",
zIndex: 2,
bgcolor: "background.paper",
boxShadow: 1
}}
>
<ChevronLeftIcon fontSize="small" />
</IconButton>
)}
{/* CHART */}
<Box sx={{ display: "flex", alignItems: "flex-end", height: 220, mt: 4 }}>
{visibleData.map((point) => {
const currentHeight = (point.amount / maxAmount) * 100;
const compareHeight = comparison
? ((point.compareAmount || 0) / maxAmount) * 100
: 0;
const labelHeight = Math.max(currentHeight, compareHeight);
return (
<Box
key={point.id}
sx={{
flex: 1,
display: "flex",
flexDirection: "column",
alignItems: "center",
justifyContent: "flex-end",
height: "100%"
}}
>
<Box
sx={{
display: "flex",
alignItems: "flex-end",
gap: comparison ? 0.5 : 0,
height: "100%",
position: "relative"
}}
>
<Typography
variant="caption"
sx={{
position: "absolute",
bottom: `${labelHeight}%`,
left: "50%",
transform: "translate(-50%, -6px)",
fontSize: "0.65rem",
whiteSpace: "nowrap",
pointerEvents: "none"
}}
>
{formatDisplay(point, activeTab.toLowerCase(), comparison)}
</Typography>
{/* Compare */}
{comparison && (
<Box
sx={{
width: 6,
height: `${compareHeight}%`,
bgcolor: `${colorScheme.primary}55`,
borderRadius: 2
}}
/>
)}
{/* Spacer */}
<Box sx={{ width: 4 }} />
{/* Current */}
<Box
sx={{
width: 10,
height: `${currentHeight}%`,
bgcolor: point.highlighted
? colorScheme.primary
: `${colorScheme.primary}99`,
borderRadius: 2
}}
/>
</Box>
<Box
sx={{
mt: 1,
textAlign: "center",
display: "flex",
flexDirection: "column",
alignItems: "center",
lineHeight: 1.1
}}
>
<Typography
variant="caption"
sx={{
fontSize: "0.7rem",
opacity: 0.7,
color: "text.primary",
}}
>
{formatLabel(point.id, activeDataKey)}
</Typography>
<Typography
variant="caption"
sx={{
fontSize: "0.65rem",
color: "grey.400",
visibility:
comparison && point.compareLabel && activeDataKey !== "daily"
? "visible"
: "hidden"
}}
>
{point.compareLabel
? formatLabel(point.compareLabel, activeDataKey)
: "placeholder"}
</Typography>
</Box>
</Box>
);
})}
</Box>
{/* RIGHT ARROW */}
{canGoRight && (
<IconButton
onClick={handleNext}
size="small"
sx={{
position: "absolute",
right: 0,
top: "50%",
transform: "translateY(-50%)",
zIndex: 2,
bgcolor: "background.paper",
boxShadow: 1
}}
>
<ChevronRightIcon fontSize="small" />
</IconButton>
)}
</Box>
) : (
<Box sx={{ height: 200, display: "flex", alignItems: "center", justifyContent: "center" }}>
<Typography color="text.secondary">No Data Available</Typography>
</Box>
)}
</Paper>
);
}