# Polymath UI

A library for Polymath's custom UI components. Check out [the docs here](https://polymath-ui-develop.netlify.com/) and [visit the Storybook](https://polymathnetwork.github.io/Polymesh-UI) for examples how to use it.

## Install

Clone the repo and run `yarn` to install all dependencies.

## Build

```
yarn build
```

## Development

For the development we recommend to work with Storybook playground which allows to easily preview component changes.

Start it with the following command:

```
yarn start
```

## Testing

```
yarn test
```

## Deployment

The CI automatically deploys the latest Storybook from the main branch after each commit to `gh-pages` branch, which is then hosted here: https://polymathnetwork.github.io/Polymesh-UI/.

## Add a new component

### New component should follow the following patterns

- Styling of components should not impact other components: no external margins on the parent container (with the exception of the `Heading` and `Paragraph` primitives that have default, overridables, margins).
  The component styles should **not** take into consideration its position in the app. It should be displayable anywhere.
  You will use the primitives to "layout" your components in the final page (where they are being used).

**Don't**

```
<Component style={{ marginTop: '30px' }} />
```

**Do**

```
<Box mr={30}>
  <Component />
</Box>
```

- Component should reuse _primitive components_ as much as possible.
- Avoid adding custom props. Create a new alternative component instead. [More infos].(https://medium.freecodecamp.org/introducing-the-single-element-pattern-dfbd2c295c5d#25ff).

**Don't**

```
  <Page centered />
```

**Do**

```
  <Page />
  <PageCentered />
```

- Nested components should follow the `Parent.Child` pattern.
- Component should be tested (snapshot + unit tests if applicable).
- Component should have a specific page in the UI website usign an `.mdx` file.

## Add new SVG icons

- Export your SVG in black `#000` (or replace the hex value in the following command by the color of your SVG)
- Add the SVG files to `images/{folder}`
- `npx @svgr/cli --icon --replace-attr-values "#000=currentColor" --ext tsx -d images/{folder}/generated images/{folder}`
- Add an entry to `images/icons/index.ts` to export the icon component

Examples:
```
npx @svgr/cli --icon --replace-attr-values "#000000=currentColor" --ext tsx -d ./src/images/icons/generated ./src/images/icons`
```

```
npx @svgr/cli --icon --ext tsx -d src/assets/images/icons/generated src/assets/images/icons
```