feat(ui): implemented button component

frontend/src/components/v2/Button/Button.tsx

@@ -1,32 +1,166 @@
 import { ButtonHTMLAttributes, forwardRef, ReactNode } from 'react';
+import { cva, VariantProps } from 'cva';
 import { twMerge } from 'tailwind-merge';
 
 type Props = {
   children: ReactNode;
   isDisabled?: boolean;
+  leftIcon?: ReactNode;
+  rightIcon?: ReactNode;
   // loading state
   isLoading?: boolean;
-  // various button sizes
-  size: 'sm' | 'md' | 'lg';
 };
 
-export type ButtonProps = ButtonHTMLAttributes<HTMLButtonElement> & Props;
+const buttonVariants = cva(
+  [
+    'button',
+    'transition-all',
+    'font-medium',
+    'cursor-pointer',
+    'inline-flex items-center justify-center',
+    'relative'
+  ],
+  {
+    variants: {
+      colorSchema: {
+        primary: ['bg-primary', 'text-black', 'border-primary hover:bg-opacity-80'],
+        secondary: ['bg-mineshaft-200', 'text-white', 'border-mineshaft-200'],
+        danger: ['bg-red', 'text-white', 'border-red']
+      },
+      variant: {
+        solid: '',
+        outline: ['bg-transparent', 'border', 'border-solid'],
+        plain: ''
+      },
+      isDisabled: {
+        true: 'bg-opacity-70',
+        false: ''
+      },
+      isFullWidth: {
+        true: 'w-full',
+        false: ''
+      },
+      isRounded: {
+        true: 'rounded-md',
+        false: ''
+      },
+      size: {
+        xs: ['text-xs', 'py-1', 'px-2'],
+        sm: ['text-sm', 'py-2', 'px-4'],
+        md: ['text-md', 'py-2', 'px-6'],
+        lg: ['text-lg', 'py-2', 'px-8']
+      }
+    },
+    compoundVariants: [
+      {
+        colorSchema: 'primary',
+        variant: 'outline',
+        className: 'text-primary hover:bg-primary hover:text-black'
+      },
+      {
+        colorSchema: 'secondary',
+        variant: 'outline',
+        className: 'text-mineshaft-200 hover:bg-mineshaft-400 hover:text-white'
+      },
+      {
+        colorSchema: 'danger',
+        variant: 'outline',
+        className: 'text-red hover:bg-red hover:text-black'
+      },
+      {
+        colorSchema: 'primary',
+        variant: 'plain',
+        className: 'text-primary'
+      },
+      {
+        colorSchema: 'secondary',
+        variant: 'plain',
+        className: 'text-mineshaft-400'
+      },
+      {
+        colorSchema: 'danger',
+        variant: 'plain',
+        className: 'text-red'
+      },
+      {
+        colorSchema: ['danger', 'primary', 'secondary'],
+        variant: ['plain'],
+        className: 'bg-transparent py-1 px-1'
+      }
+    ]
+  }
+);
+
+export type ButtonProps = ButtonHTMLAttributes<HTMLButtonElement> &
+  VariantProps<typeof buttonVariants> &
+  Props;
 
 export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
-  ({ children, isDisabled = false, className, ...props }, ref): JSX.Element => {
+  (
+    {
+      children,
+      isDisabled = false,
+      className = '',
+      size = 'md',
+      variant = 'solid',
+      isFullWidth,
+      isRounded = true,
+      leftIcon,
+      rightIcon,
+      isLoading,
+      colorSchema = 'primary',
+      ...props
+    },
+    ref
+  ): JSX.Element => {
+    const loadingToggleClass = isLoading ? 'opacity-0' : 'opacity-100';
+
     return (
       <button
         ref={ref}
         aria-disabled={isDisabled}
         type="button"
         className={twMerge(
-          'bg-primary hover:opacity-80 transition-all text-sm px-4 py-2 font-bold rounded',
-          className
+          buttonVariants({
+            className,
+            colorSchema,
+            size,
+            variant,
+            isRounded,
+            isDisabled,
+            isFullWidth
+          })
         )}
         disabled={isDisabled}
         {...props}
       >
-        {children}
+        {isLoading && (
+          <img
+            src="/images/loading/loadingblack.gif"
+            width={36}
+            alt="loading animation"
+            className="rounded-xl absolute"
+          />
+        )}
+        <span
+          className={twMerge(
+            'transition-all shrink-0 cursor-pointer',
+            loadingToggleClass,
+            size === 'xs' ? 'mr-1' : 'mr-2'
+          )}
+        >
+          {leftIcon}
+        </span>
+        <span className={twMerge('transition-all', loadingToggleClass)}>{children}</span>
+        <span
+          className={twMerge(
+            'transition-all shrink-0 cursor-pointer',
+            loadingToggleClass,
+            size === 'xs' ? 'ml-1' : 'ml-2'
+          )}
+        >
+          {rightIcon}
+        </span>
       </button>
     );
   }