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import React from 'react'
import { Typography, Link } from '@mui/material'
import { useParams, Link as RouterLink } from 'react-router-dom'
import { useQuery } from '@tanstack/react-query'
import fetch from './fetch'

function Episode() {
  const { episodeId } = useParams()
  const { data, status } = useQuery({
    queryKey: ['episode', episodeId],
    queryFn: () =>
      fetch(`https://rickandmortyapi.com/api/episode/${episodeId}`),
  })

  if (status === 'pending') return <p>Loading...</p>
  if (status === 'error') return <p>Error :(</p>

  return (
    <div>
      <Typography variant="h2">{data.name}</Typography>
      <Typography variant="body1">{data.air_date}</Typography>
      <br />
      <Typography variant="h4">Characters</Typography>
      {data.characters.map((character) => {
        const characterUrlParts = character.split('/').filter(Boolean)
        const characterId = characterUrlParts[characterUrlParts.length - 1]
        return <Character id={characterId} key={characterId} />
      })}
    </div>
  )
}

function Character({ id }) {
  const { data, status } = useQuery({
    queryKey: ['character', id],
    queryFn: () => fetch(`https://rickandmortyapi.com/api/character/${id}`),
  })

  if (status === 'pending') return <p>Loading...</p>
  if (status === 'error') return <p>Error :(</p>

  return (
    <article key={id}>
      <Link component={RouterLink} to={`/characters/${id}`}>
        <Typography variant="h6">{data.name}</Typography>
      </Link>
    </article>
  )
}

export default Episode