Squashed commit of the following:

commit d9209a78cff1c05be3e6a87e27cd1a5a4d5f91c5
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Wed Jul 24 11:55:35 2024 +0200

    style : UI analysis panel adjustment

commit 3c2e19bdb9d97f3bb7e8ceaefd630aad64d755c4
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Wed Jul 24 11:10:07 2024 +0200

    feat : graph dot color match move classification

commit 4a99ccb2fe19d3806ff320370ebc55af984d719a
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Wed Jul 24 11:09:35 2024 +0200

    fix : load pgn with no moves

commit 9eeb0e7f2869e544700b7da963b74f707fa6ea2f
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Wed Jul 24 00:09:03 2024 +0200

    feat : add current move reference line in graph

commit febb9962a0b366aeac1dc266e0470b75bd619e68
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Tue Jul 23 23:08:17 2024 +0200

    fix : handle tab change on new game

commit a105239a728dc05211a0ae99d8fd56f179108a0e
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Tue Jul 23 03:46:49 2024 +0200

    style : small chart UI tweaks

commit 4878ebf87b4ddbac75db70619fe452a3a317ca09
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Tue Jul 23 03:38:40 2024 +0200

    feat : add eval graph

commit 29c5a001da03ee288d2a2c133426b1d2ca435930
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Tue Jul 23 00:30:25 2024 +0200

    refacto : analysis directory

commit a8b966cc07152bb117b8c68f54af3498ca2a5d2f
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Tue Jul 23 00:07:07 2024 +0200

    style : add settings floating button

commit 7edc54f09ce7d4b4c4beb310a9c7f985363ff5ee
Author: GuillaumeSD <47183782+GuillaumeSD@users.noreply.github.com>
Date:   Sun Jul 21 22:29:48 2024 +0200

    feat : tab analysis panel

src/sections/analysis/panelBody/graphTab/dot.tsx

@@ -0,0 +1,39 @@
+import { DotProps } from "recharts";
+import { ChartItemData } from "./types";
+import { useAtomValue } from "jotai";
+import { boardAtom, gameAtom } from "../../states";
+import { useChessActions } from "@/hooks/useChessActions";
+import { moveClassificationColors } from "@/lib/chess";
+
+export default function CustomDot({
+  cx,
+  cy,
+  r,
+  payload,
+}: DotProps & { payload?: ChartItemData }) {
+  const { goToMove } = useChessActions(boardAtom);
+  const game = useAtomValue(gameAtom);
+
+  const handleDotClick = () => {
+    if (!payload) return;
+    goToMove(payload.moveNb, game);
+  };
+
+  const moveColor = payload?.moveClassification
+    ? moveClassificationColors[payload.moveClassification]
+    : "grey";
+
+  return (
+    <circle
+      cx={cx}
+      cy={cy}
+      r={r}
+      stroke={moveColor}
+      strokeWidth={5}
+      fill={moveColor}
+      fillOpacity={1}
+      onClick={handleDotClick}
+      cursor="pointer"
+    />
+  );
+}

src/sections/analysis/panelBody/graphTab/index.tsx

@@ -0,0 +1,135 @@
+import { Box, Grid, GridProps } from "@mui/material";
+import { useAtomValue } from "jotai";
+import {
+  Area,
+  AreaChart,
+  ReferenceLine,
+  ResponsiveContainer,
+  Tooltip,
+  XAxis,
+  YAxis,
+} from "recharts";
+import { currentPositionAtom, gameEvalAtom } from "../../states";
+import { useMemo } from "react";
+import CustomTooltip from "./tooltip";
+import { ChartItemData } from "./types";
+import { PositionEval } from "@/types/eval";
+import { moveClassificationColors } from "@/lib/chess";
+import CustomDot from "./dot";
+
+export default function GraphTab(props: GridProps) {
+  const gameEval = useAtomValue(gameEvalAtom);
+  const currentPosition = useAtomValue(currentPositionAtom);
+
+  const chartData: ChartItemData[] = useMemo(
+    () => gameEval?.positions.map(formatEvalToChartData) ?? [],
+    [gameEval]
+  );
+
+  const boardMoveColor = currentPosition.eval?.moveClassification
+    ? moveClassificationColors[currentPosition.eval.moveClassification]
+    : "grey";
+
+  if (!gameEval) return null;
+
+  return (
+    <Grid
+      container
+      item
+      justifyContent="center"
+      alignItems="start"
+      height="100%"
+      {...props}
+      sx={
+        props.hidden
+          ? { display: "none" }
+          : { marginY: 1, overflow: "hidden", overflowY: "auto", ...props.sx }
+      }
+    >
+      <Box
+        width="max(35rem, 90%)"
+        maxWidth="100%"
+        height="max(8rem, 100%)"
+        maxHeight="15rem"
+        sx={{
+          backgroundColor: "#2e2e2e",
+          borderRadius: "15px",
+          overflow: "hidden",
+        }}
+      >
+        <ResponsiveContainer width="100%" height="100%">
+          <AreaChart
+            width={500}
+            height={400}
+            data={chartData}
+            margin={{ top: 0, left: 0, right: 0, bottom: 0 }}
+          >
+            <XAxis dataKey="moveNb" hide stroke="red" />
+            <YAxis domain={[0, 20]} hide />
+            <Tooltip
+              content={<CustomTooltip />}
+              isAnimationActive={false}
+              cursor={{
+                stroke: "grey",
+                strokeWidth: 2,
+                strokeOpacity: 0.3,
+              }}
+            />
+            <Area
+              type="monotone"
+              dataKey="value"
+              stroke="none"
+              fill="#ffffff"
+              fillOpacity={1}
+              activeDot={<CustomDot />}
+              isAnimationActive={false}
+            />
+            <ReferenceLine
+              y={10}
+              stroke="grey"
+              strokeWidth={2}
+              strokeOpacity={0.4}
+            />
+            <ReferenceLine
+              x={currentPosition.currentMoveIdx}
+              stroke={boardMoveColor}
+              strokeWidth={4}
+              strokeOpacity={0.6}
+            />
+          </AreaChart>
+        </ResponsiveContainer>
+      </Box>
+    </Grid>
+  );
+}
+
+const formatEvalToChartData = (
+  position: PositionEval,
+  index: number
+): ChartItemData => {
+  const line = position.lines[0];
+
+  const chartItem: ChartItemData = {
+    moveNb: index,
+    value: 10,
+    cp: line.cp,
+    mate: line.mate,
+    moveClassification: position.moveClassification,
+  };
+
+  if (line.mate) {
+    return {
+      ...chartItem,
+      value: line.mate > 0 ? 20 : 0,
+    };
+  }
+
+  if (line.cp) {
+    return {
+      ...chartItem,
+      value: Math.max(Math.min(line.cp / 100, 10), -10) + 10,
+    };
+  }
+
+  return chartItem;
+};

src/sections/analysis/panelBody/graphTab/tooltip.tsx

@@ -0,0 +1,27 @@
+import { TooltipProps } from "recharts";
+import { ChartItemData } from "./types";
+import { getLineEvalLabel } from "@/lib/chess";
+
+export default function CustomTooltip({
+  active,
+  payload,
+}: TooltipProps<number, number>) {
+  if (!active || !payload?.length) return null;
+
+  const data = payload[0].payload as ChartItemData;
+
+  return (
+    <div
+      style={{
+        backgroundColor: "#f0f0f0",
+        padding: 5,
+        color: "black",
+        opacity: 0.9,
+        border: "1px solid black",
+        borderRadius: 3,
+      }}
+    >
+      {getLineEvalLabel(data)}
+    </div>
+  );
+}

src/sections/analysis/panelBody/graphTab/types.ts

@@ -0,0 +1,9 @@
+import { MoveClassification } from "@/types/enums";
+
+export interface ChartItemData {
+  moveNb: number;
+  value: number;
+  cp?: number;
+  mate?: number;
+  moveClassification?: MoveClassification;
+}