Uniformize folder structure (#693)

* Uniformize folder structure

* Fix icons

* Fix icons

* Fix tests

* Fix tests

front/src/modules/ui/snack-bar/components/SnackBar.tsx

@@ -0,0 +1,182 @@
+import { useCallback, useMemo, useRef } from 'react';
+import { useTheme } from '@emotion/react';
+import styled from '@emotion/styled';
+
+import { IconAlertTriangle, IconX } from '@/ui/icon';
+import {
+  ProgressBar,
+  ProgressBarControls,
+} from '@/ui/progress-bar/components/ProgressBar';
+import { rgba } from '@/ui/themes/colors';
+
+import { usePausableTimeout } from '../hooks/usePausableTimeout';
+
+const StyledMotionContainer = styled.div<Pick<SnackbarProps, 'variant'>>`
+  align-items: center;
+  background-color: ${({ theme, variant }) => {
+    switch (variant) {
+      case 'error':
+        return theme.snackBar.error.background;
+      case 'success':
+        return theme.snackBar.success.background;
+      case 'info':
+      default:
+        return theme.color.gray80;
+    }
+  }};
+  border-radius: ${({ theme }) => theme.border.radius.sm};
+  box-shadow: ${({ theme }) => theme.boxShadow.strong};
+  color: ${({ theme, variant }) => {
+    switch (variant) {
+      case 'error':
+        return theme.snackBar.error.color;
+      case 'success':
+        return theme.snackBar.success.color;
+      case 'info':
+      default:
+        return theme.color.gray0;
+    }
+  }};
+  cursor: pointer;
+  display: flex;
+  height: 40px;
+  overflow: hidden;
+  padding: ${({ theme }) => theme.spacing(2)};
+  pointer-events: auto;
+  position: relative;
+`;
+
+const StyledIconContainer = styled.div`
+  display: flex;
+  margin-right: ${({ theme }) => theme.spacing(2)};
+`;
+
+const ProgressBarContainer = styled.div`
+  height: 5px;
+  left: 0;
+  position: absolute;
+  right: 0;
+  top: 0;
+`;
+
+const CloseButton = styled.button<Pick<SnackbarProps, 'variant'>>`
+  align-items: center;
+  background-color: transparent;
+  border: none;
+  border-radius: 12px;
+  color: ${({ theme, variant }) => {
+    switch (variant) {
+      case 'error':
+        return theme.color.red20;
+      case 'success':
+        return theme.color.turquoise20;
+      case 'info':
+      default:
+        return theme.color.gray0;
+    }
+  }};
+  cursor: pointer;
+  display: flex;
+  height: 24px;
+  justify-content: center;
+  margin-left: ${({ theme }) => theme.spacing(6)};
+  padding-left: ${({ theme }) => theme.spacing(1)};
+  padding-right: ${({ theme }) => theme.spacing(1)};
+  width: 24px;
+
+  &:hover {
+    background-color: ${({ theme }) => rgba(theme.color.gray0, 0.1)};
+  }
+`;
+
+export type SnackbarVariant = 'info' | 'error' | 'success';
+
+export interface SnackbarProps extends React.ComponentPropsWithoutRef<'div'> {
+  role?: 'alert' | 'status';
+  icon?: React.ReactNode;
+  message?: string;
+  allowDismiss?: boolean;
+  duration?: number;
+  variant?: SnackbarVariant;
+  children?: React.ReactNode;
+  onClose?: () => void;
+}
+
+export function SnackBar({
+  role = 'status',
+  icon: iconComponent,
+  message,
+  allowDismiss = true,
+  duration = 6000,
+  variant = 'info',
+  children,
+  onClose,
+  ...rootProps
+}: SnackbarProps) {
+  const theme = useTheme();
+
+  const progressBarRef = useRef<ProgressBarControls | null>(null);
+
+  const closeSnackbar = useCallback(() => {
+    onClose && onClose();
+  }, [onClose]);
+
+  const { pauseTimeout, resumeTimeout } = usePausableTimeout(
+    closeSnackbar,
+    duration,
+  );
+
+  const icon = useMemo(() => {
+    if (iconComponent) {
+      return iconComponent;
+    }
+
+    switch (variant) {
+      case 'error':
+        return (
+          <IconAlertTriangle aria-label="Error" size={theme.icon.size.md} />
+        );
+      case 'success':
+      case 'info':
+      default:
+        return null;
+    }
+  }, [iconComponent, theme.icon.size.md, variant]);
+
+  const onMouseEnter = () => {
+    progressBarRef.current?.pause();
+    pauseTimeout();
+  };
+
+  const onMouseLeave = () => {
+    progressBarRef.current?.start();
+    resumeTimeout();
+  };
+
+  return (
+    <StyledMotionContainer
+      aria-live={role === 'alert' ? 'assertive' : 'polite'}
+      role={role}
+      onMouseEnter={onMouseEnter}
+      onMouseLeave={onMouseLeave}
+      variant={variant}
+      {...rootProps}
+    >
+      <ProgressBarContainer>
+        <ProgressBar
+          ref={progressBarRef}
+          barHeight={5}
+          barColor={rgba(theme.color.gray0, 0.3)}
+          duration={duration}
+        />
+      </ProgressBarContainer>
+      {icon && <StyledIconContainer>{icon}</StyledIconContainer>}
+      {children ? children : message}
+      {allowDismiss && (
+        <CloseButton variant={variant} onClick={closeSnackbar}>
+          <IconX aria-label="Close" size={theme.icon.size.md} />
+        </CloseButton>
+      )}
+    </StyledMotionContainer>
+  );
+}

front/src/modules/ui/snack-bar/components/SnackBarProvider.tsx

@@ -0,0 +1,91 @@
+import styled from '@emotion/styled';
+import { motion, useReducedMotion } from 'framer-motion';
+import { useRecoilState } from 'recoil';
+
+import { snackBarInternalState } from '../states/snackBarState';
+
+import { SnackBar } from './SnackBar';
+
+const SnackBarContainer = styled.div`
+  display: flex;
+  flex-direction: column;
+  position: fixed;
+  right: 0;
+  top: 0;
+  z-index: 99999999;
+`;
+
+const SnackBarMotionContainer = styled(motion.div)`
+  margin-right: ${({ theme }) => theme.spacing(3)};
+  margin-top: ${({ theme }) => theme.spacing(3)};
+`;
+
+const variants = {
+  initial: {
+    opacity: 0,
+    y: -40,
+  },
+  animate: {
+    opacity: 1,
+    y: 0,
+  },
+  exit: {
+    opacity: 0,
+    y: -40,
+  },
+};
+
+const reducedVariants = {
+  initial: {
+    opacity: 0,
+    y: -40,
+  },
+  animate: {
+    opacity: 1,
+    y: 0,
+  },
+  exit: {
+    opacity: 0,
+    y: -40,
+  },
+};
+
+export function SnackBarProvider({ children }: React.PropsWithChildren) {
+  const reducedMotion = useReducedMotion();
+
+  const [snackBarState, setSnackBarState] = useRecoilState(
+    snackBarInternalState,
+  );
+
+  // Handle snackbar close event
+  const handleSnackBarClose = (id: string) => {
+    setSnackBarState((prevState) => ({
+      ...prevState,
+      queue: prevState.queue.filter((snackBar) => snackBar.id !== id),
+    }));
+  };
+
+  return (
+    <>
+      {children}
+      <SnackBarContainer>
+        {snackBarState.queue.map((snackBar) => (
+          <SnackBarMotionContainer
+            key={snackBar.id}
+            variants={reducedMotion ? reducedVariants : variants}
+            initial="initial"
+            animate="animate"
+            exit="exit"
+            transition={{ duration: 0.5 }}
+            layout
+          >
+            <SnackBar
+              {...snackBar}
+              onClose={() => handleSnackBarClose(snackBar.id)}
+            />
+          </SnackBarMotionContainer>
+        ))}
+      </SnackBarContainer>
+    </>
+  );
+}

front/src/modules/ui/snack-bar/hooks/usePausableTimeout.ts

@@ -0,0 +1,50 @@
+import { useCallback, useEffect, useRef } from 'react';
+
+export function usePausableTimeout(callback: () => void, delay: number) {
+  const savedCallback = useRef<() => void>(callback);
+  const remainingTime = useRef<number>(delay);
+  const startTime = useRef<number>(Date.now());
+  const timeoutId = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  const tick = () => {
+    if (savedCallback.current) {
+      savedCallback.current();
+    }
+  };
+
+  const startTimeout = useCallback(() => {
+    startTime.current = Date.now();
+    timeoutId.current = setTimeout(tick, remainingTime.current);
+  }, []);
+
+  // Remember the latest callback
+  useEffect(() => {
+    savedCallback.current = callback;
+  }, [callback]);
+
+  // Set up the timeout loop
+  useEffect(() => {
+    if (delay !== null) {
+      startTimeout();
+      return () => {
+        if (timeoutId.current) {
+          clearTimeout(timeoutId.current);
+        }
+      };
+    }
+  }, [delay, startTimeout]);
+
+  const pauseTimeout = () => {
+    if (timeoutId.current) {
+      clearTimeout(timeoutId.current);
+    }
+    const elapsedTime = Date.now() - startTime.current;
+    remainingTime.current = remainingTime.current - elapsedTime;
+  };
+
+  const resumeTimeout = () => {
+    startTimeout();
+  };
+
+  return { pauseTimeout, resumeTimeout };
+}

front/src/modules/ui/snack-bar/hooks/useSnackBar.ts

@@ -0,0 +1,24 @@
+import { useSetRecoilState } from 'recoil';
+import { v4 as uuidv4 } from 'uuid';
+
+import {
+  SnackBarOptions,
+  snackBarSetQueueState,
+} from '../states/snackBarState';
+
+export function useSnackBar() {
+  const setSnackBarQueue = useSetRecoilState(snackBarSetQueueState);
+
+  const enqueueSnackBar = (
+    message: string,
+    options?: Omit<SnackBarOptions, 'message' | 'id'>,
+  ) => {
+    setSnackBarQueue({
+      id: uuidv4(),
+      message,
+      ...options,
+    });
+  };
+
+  return { enqueueSnackBar };
+}

front/src/modules/ui/snack-bar/states/snackBarState.ts

@@ -0,0 +1,39 @@
+import { atom, selector } from 'recoil';
+
+import { SnackbarProps } from '../components/SnackBar';
+
+export type SnackBarOptions = SnackbarProps & {
+  id: string;
+};
+
+export type SnackBarState = {
+  maxQueue: number;
+  queue: SnackBarOptions[];
+};
+
+export const snackBarInternalState = atom<SnackBarState>({
+  key: 'snackBarState',
+  default: {
+    maxQueue: 3,
+    queue: [],
+  },
+});
+
+export const snackBarSetQueueState = selector<SnackBarOptions | null>({
+  key: 'snackBarQueueState',
+  get: ({ get }) => null, // We don't care about getting the value
+  set: ({ set }, newValue) =>
+    set(snackBarInternalState, (prev) => {
+      if (prev.queue.length >= prev.maxQueue) {
+        return {
+          ...prev,
+          queue: [...prev.queue.slice(1), newValue] as SnackBarOptions[],
+        };
+      }
+
+      return {
+        ...prev,
+        queue: [...prev.queue, newValue] as SnackBarOptions[],
+      };
+    }),
+});