import { useCallback, useContext } from 'react'
import { Currency, Price } from '@uniswap/sdk-core'
import { Text } from 'rebass'
import styled, { ThemeContext } from 'styled-components/macro'

interface TradePriceProps {
  price: Price<Currency, Currency>
  showInverted: boolean
  setShowInverted: (showInverted: boolean) => void
}

const StyledPriceContainer = styled.button`
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  font-size: 0.875rem;
  font-weight: 400;
  background-color: transparent;
  border: none;
  height: 24px;
  cursor: pointer;
`

export default function TradePrice({ price, showInverted, setShowInverted }: TradePriceProps) {
  const theme = useContext(ThemeContext)

  let formattedPrice: string
  try {
    formattedPrice = showInverted ? price.toSignificant(4) : price.invert()?.toSignificant(4)
  } catch (error) {
    formattedPrice = '0'
  }

  const label = showInverted ? `${price.quoteCurrency?.symbol}` : `${price.baseCurrency?.symbol} `
  const labelInverted = showInverted ? `${price.baseCurrency?.symbol} ` : `${price.quoteCurrency?.symbol}`
  const flipPrice = useCallback(() => setShowInverted(!showInverted), [setShowInverted, showInverted])

  const text = `${'1 ' + labelInverted + ' = ' + formattedPrice ?? '-'} ${label}`

  return (
    <StyledPriceContainer onClick={flipPrice} title={text}>
      <div style={{ alignItems: 'center', display: 'flex', width: 'fit-content' }}>
        <Text fontWeight={500} fontSize={14} color={theme.text1}>
          {text}
        </Text>
      </div>
    </StyledPriceContainer>
  )
}
