// Components
import React, { forwardRef } from 'react'
import { Svg as DefaultSvg } from './svg.mjs'
import { Defs as DefaultDefs } from './defs.mjs'
import { Group as DefaultGroup } from './group.mjs'
import { Stack as DefaultStack } from './stack.mjs'
import { Part as DefaultPart } from './part.mjs'
import { Point as DefaultPoint } from './point.mjs'
import { Snippet as DefaultSnippet } from './snippet.mjs'
import { Path as DefaultPath } from './path.mjs'
import { Grid as DefaultGrid } from './grid.mjs'
import { Text as DefaultText, TextOnPath as DefaultTextOnPath } from './text.mjs'
import { Circle as DefaultCircle } from './circle.mjs'
import { getId, getProps, withinPartBounds, translateStrings } from './utils.mjs'

/**
 * Default Pattern components that you can override
 *
 * @public
 * @constant
 */
const defaultComponents = {
  Svg: DefaultSvg,
  Defs: DefaultDefs,
  Group: DefaultGroup,
  Stack: DefaultStack,
  Part: DefaultPart,
  Point: DefaultPoint,
  Path: DefaultPath,
  Snippet: DefaultSnippet,
  Grid: DefaultGrid,
  Text: DefaultText,
  TextOnPath: DefaultTextOnPath,
  Circle: DefaultCircle,
}

/**
 * A component to render a FreeSewing pattern based on its renderProps
 *
 * @component
 * @param {object} props - All component props
 * @param {JSX.Element} props.children - The component children, if they are set, we will not render any stacks
 * @param {string} [props.className = 'freesewing pattern'] - SVG classes to set on the SVG element
 * @param {object} [props.components = {}] - Any custom components to use in the pattern
 * @param {object} [props.strings = {}] - Strings to use for translation
 * @param {object} props.renderProps - The pattern's renderProps as generated by FreeSewing core
 * @returns {JSX.Element}
 */
const Pattern = forwardRef((props, ref) => {
  if (!props.renderProps) return null

  // Destructure props
  const {
    renderProps = false,
    strings = {},
    children = false,
    className = 'freesewing pattern',
    components = {},
  } = props

  // Merge default and swizzled components
  const mergedComponents = {
    ...defaultComponents,
    ...components,
  }

  const { Svg, Defs, Stack, Group } = mergedComponents

  const optionalProps = {}
  if (className) optionalProps.className = className

  return (
    <Svg
      viewBox={`0 0 ${renderProps.width} ${renderProps.height}`}
      embed={renderProps.settings.embed}
      {...renderProps}
      {...optionalProps}
      ref={ref}
    >
      <Defs {...renderProps} />
      <style>{`:root { --pattern-scale: ${renderProps.settings.scale || 1}} ${
        renderProps.svg.style
      }`}</style>
      <Group>
        {children
          ? children
          : Object.keys(renderProps.stacks).map((stackName) => (
              <Stack
                key={stackName}
                stackName={stackName}
                stack={renderProps.stacks[stackName]}
                settings={renderProps.settings}
                components={mergedComponents}
                strings={strings}
              />
            ))}
      </Group>
    </Svg>
  )
})
Pattern.displayName = 'Pattern'

export {
  // utils
  getId,
  getProps,
  withinPartBounds,
  translateStrings,
  // default components
  defaultComponents,
  // The Pattern component itself
  Pattern,
}

// Also export default components
export const Svg = DefaultSvg
export const Defs = DefaultDefs
export const Group = DefaultGroup
export const Stack = DefaultStack
export const Part = DefaultPart
export const Point = DefaultPoint
export const Path = DefaultPath
export const Snippet = DefaultSnippet
export const Grid = DefaultGrid
export const Text = DefaultText
export const TextOnPath = DefaultTextOnPath
export const Circle = DefaultCircle