import { Tab, Tabs } from '../tabs.mjs'
import Md from 'react-markdown'
import { pluginBundle } from '@freesewing/plugin-bundle'
import { pluginFlip } from '@freesewing/plugin-flip'
import { pluginGore } from '@freesewing/plugin-gore'
import { Design } from '@freesewing/core'
import yaml from 'js-yaml'
import { Pattern, PatternXray } from '@freesewing/react-components'

// Get code from children
export const asText = (reactEl) => {
  if (reactEl) {
    if (typeof reactEl.props.children === 'string') return reactEl.props.children
    if (Array.isArray(reactEl.props.children)) {
      return reactEl.props.children.map((el) => (typeof el === 'string' ? el : asText(el))).join('')
    }
    if (typeof reactEl.props.children === 'object') return asText(reactEl.props.children)
  }

  return ''
}

// Returns a FreeSewing pattern based on code in children
const buildPattern = (children, settings = { margin: 5 }, tutorial = false, paperless = false) => {
  let code = asText(children)
  // FIXME: Refactor to not use eval
  let draft
  if (code.split('\n')[0].includes('function')) {
    code = '(' + code.split('(').slice(1).join('(')
    code = code.split(')')
    code = code[0] + ') => ' + code.slice(1).join(')')
  }
  try {
    draft = eval(code)
  } catch (err) {
    console.log(err, code)
  }
  const part = {
    draft: draft,
    name: tutorial ? 'tutorial.bib' : 'example',
    measurements: tutorial ? [] : ['head'],
    options: tutorial
      ? {
          neckRatio: { pct: 80, min: 70, max: 90, menu: 'fit' },
          widthRatio: { pct: 45, min: 35, max: 55, menu: 'style' },
          lengthRatio: { pct: 75, min: 55, max: 85, menu: 'style' },
        }
      : {},
    plugins: [pluginBundle, pluginFlip, pluginGore],
  }
  const design = new Design({
    parts: [part],
    data: tutorial ? { name: 'Tutorial', version: '0.0.1' } : { name: 'Example', version: '0.0.1' },
  })
  if (tutorial) settings.measurements = { head: 380 }
  if (paperless) settings.paperless = true

  return new design(settings)
}

// Handles display of pattern in mormal or xray mode
const ShowPattern = ({ renderProps, logs, mode = 'normal' }) => {
  if (!renderProps) return null

  if (logs.pattern.error.length > 0 || logs.sets[0].error.length > 0)
    return (
      <div className="max-w-full p-4">
        <pre>fixme: Errors logged. Please implement log view</pre>
      </div>
    )

  return mode === 'xray' ? <PatternXray {...{ renderProps }} /> : <Pattern {...{ renderProps }} />
}

// Wrapper component dealing with the tabs and code view
export const TabbedExample = ({
  children,
  caption,
  tutorial,
  previewFirst,
  withHead,
  paperless,
  settings,
  patternProps,
}) => {
  if (settings)
    settings = {
      margin: 5,
      ...yaml.load(settings),
    }
  else settings = { margin: 5 }
  if (withHead) settings.measurements = { head: 300 }

  if (children && !patternProps) {
    const pattern = buildPattern(children, settings, tutorial, paperless)

    // Check that it's a valid pattern
    if (!pattern.sample) return null

    patternProps = {
      renderProps: settings.sample
        ? pattern.sample().getRenderProps()
        : pattern.draft().getRenderProps(),
      logs: pattern.getLogs(),
    }
  }

  const tabs = []
  const tabNames = ['Preview']
  tabs.push(
    <Tab key="preview">
      <ShowPattern {...patternProps} />
    </Tab>
  )
  if (children) {
    const codeTab = <Tab key="code">{children}</Tab>

    if (tutorial && !previewFirst) {
      tabs.unshift(codeTab)
      tabNames.unshift('Code')
    } else {
      tabs.push(codeTab)
      tabNames.push('Code')
    }
  }

  tabs.push(
    <Tab key="xray">
      <ShowPattern {...patternProps} mode="xray" />
    </Tab>
  )
  tabNames.push('X-Ray')

  return (
    <div className="my-8">
      <Tabs tabs={tabNames.join(', ')}>{tabs}</Tabs>
      {caption && (
        <div className="text-center italic -mt-4">
          <Md>{caption}</Md>
        </div>
      )}
    </div>
  )
}