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import React, {createContext, useContext, useMemo} from 'react'
import {TextStyle, useColorScheme, ViewStyle} from 'react-native'
import {darkTheme, defaultTheme} from './themes'
export type ColorScheme = 'light' | 'dark'
export type PaletteColorName =
| 'default'
| 'primary'
| 'secondary'
| 'inverted'
| 'error'
export type PaletteColor = {
background: string
backgroundLight: string
text: string
textLight: string
textInverted: string
link: string
border: string
icon: string
[k: string]: string
}
export type Palette = Record<PaletteColorName, PaletteColor>
export type ShapeName = 'button' | 'bigButton' | 'smallButton'
export type Shapes = Record<ShapeName, ViewStyle>
export type TypographyVariant =
| 'h1'
| 'h2'
| 'h3'
| 'h4'
| 'h5'
| 'h6'
| 'subtitle1'
| 'subtitle2'
| 'body1'
| 'body2'
| 'button'
| 'caption'
| 'overline1'
| 'overline2'
| 'mono1'
export type Typography = Record<TypographyVariant, TextStyle>
export interface Theme {
colorScheme: ColorScheme
palette: Palette
shapes: Shapes
typography: Typography
}
export interface ThemeProviderProps {
theme?: ColorScheme
}
export const ThemeContext = createContext<Theme>(defaultTheme)
export const useTheme = () => useContext(ThemeContext)
export const ThemeProvider: React.FC<ThemeProviderProps> = ({
theme,
children,
}) => {
const colorScheme = useColorScheme()
const value = useMemo(
() => ((theme || colorScheme) === 'dark' ? darkTheme : defaultTheme),
[colorScheme, theme],
)
return <ThemeContext.Provider value={value}>{children}</ThemeContext.Provider>
}
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