import * as React from "react";
import type {
  ViewProps,
  TextProps,
  PressableProps,
  ScrollViewProps,
  ModalProps,
} from "react-native";
import { useTerminalDimensions } from "@opentui/react";
import { RGBA } from "@opentui/core";

const RATIO_WIDTH = 8.433;
const RATIO_HEIGHT = 17;

export function View({ children, style }: ViewProps) {
  const bg = style &&
    'backgroundColor' in style
    ? typeof style.backgroundColor == 'string'
    ? style.backgroundColor.startsWith('rgba(')
    ? (() => {
        const parts = style.backgroundColor.split("(")[1].split(")")[0];
        const [r, g, b, a] = parts.split(",").map(parseFloat);
        return RGBA.fromInts(r, g, b, a * 255);
      })()
    : style.backgroundColor
    : undefined
    : undefined;
  const flexDirection = style &&
    'flexDirection' in style
    ? typeof style.flexDirection == 'string'
    ? style.flexDirection
    : undefined
    : undefined;
  const flex = style &&
    'flex' in style
    ? typeof style.flex == 'number'
    ? style.flex
    : undefined
    : undefined;
  const flexShrink = style &&
    'flexShrink' in style
    ? typeof style.flexShrink == 'number'
    ? style.flexShrink
    : undefined
    : undefined;
  const overflow = style &&
    'overflow' in style
    ? typeof style.overflow == 'string'
    ? style.overflow
    : undefined
    : undefined;
  const position = style &&
    'position' in style
    ? typeof style.position == 'string'
    ? style.position
    : undefined
    : undefined;
  const justifyContent = style &&
    'justifyContent' in style
    ? typeof style.justifyContent == 'string'
    ? style.justifyContent
    : undefined
    : undefined;
  const alignItems = style &&
    'alignItems' in style
    ? typeof style.alignItems == 'string'
    ? style.alignItems
    : undefined
    : undefined;

  const padding = style &&
    'padding' in style
    ? typeof style.padding == 'number'
    ? style.padding
    : undefined
    : undefined;

  return <box
    backgroundColor={bg}
    flexDirection={flexDirection}
    flexGrow={flex}
    overflow={overflow}
    flexShrink={flexShrink}
    position={position}
    justifyContent={justifyContent}
    alignItems={alignItems}
    paddingTop={padding && Math.round(padding / RATIO_HEIGHT)}
    paddingBottom={padding && Math.round(padding / RATIO_HEIGHT)}
    paddingLeft={padding && Math.round(padding / RATIO_WIDTH)}
    paddingRight={padding && Math.round(padding / RATIO_WIDTH)}
  >{children}</box>
}

export function Pressable({ children: childrenRaw, style, onPress }: PressableProps) {
  const bg = style &&
    'backgroundColor' in style
    ? typeof style.backgroundColor == 'string'
    ? style.backgroundColor.startsWith('rgba(')
    ? (() => {
        const parts = style.backgroundColor.split("(")[1].split(")")[0];
        const [r, g, b, a] = parts.split(",").map(parseFloat);
        return RGBA.fromInts(r, g, b, a * 255);
      })()
    : style.backgroundColor
    : undefined
    : undefined;
  const flexDirection = style &&
    'flexDirection' in style
    ? typeof style.flexDirection == 'string'
    ? style.flexDirection
    : undefined
    : undefined;
  const flex = style &&
    'flex' in style
    ? typeof style.flex == 'number'
    ? style.flex
    : undefined
    : undefined;
  const flexShrink = style &&
    'flexShrink' in style
    ? typeof style.flexShrink == 'number'
    ? style.flexShrink
    : undefined
    : undefined;
  const overflow = style &&
    'overflow' in style
    ? typeof style.overflow == 'string'
    ? style.overflow
    : undefined
    : undefined;
  const position = style &&
    'position' in style
    ? typeof style.position == 'string'
    ? style.position
    : undefined
    : undefined;
  const justifyContent = style &&
    'justifyContent' in style
    ? typeof style.justifyContent == 'string'
    ? style.justifyContent
    : undefined
    : undefined;
  const alignItems = style &&
    'alignItems' in style
    ? typeof style.alignItems == 'string'
    ? style.alignItems
    : undefined
    : undefined;

  const padding = style &&
    'padding' in style
    ? typeof style.padding == 'number'
    ? style.padding
    : undefined
    : undefined;

  const children = childrenRaw instanceof Function ? childrenRaw({ pressed: true }) : childrenRaw;

  return <box
    onMouseDown={onPress ? ((_event) => {
      // @ts-ignore
      onPress();
    }) : undefined}

    backgroundColor={bg}
    flexDirection={flexDirection}
    flexGrow={flex}
    overflow={overflow}
    flexShrink={flexShrink}
    position={position}
    justifyContent={justifyContent}
    alignItems={alignItems}
    paddingTop={padding && Math.round(padding / RATIO_HEIGHT)}
    paddingBottom={padding && Math.round(padding / RATIO_HEIGHT)}
    paddingLeft={padding && Math.round(padding / RATIO_WIDTH)}
    paddingRight={padding && Math.round(padding / RATIO_WIDTH)}
  >{children}</box>
}


export function Text({ style, children }: TextProps) {
  const fg = style &&
    'color' in style
    ? typeof style.color == 'string'
    ? style.color
    : undefined
    : undefined;
  return <text fg={fg || "black"}>{children}</text>

}

export function ScrollView({ children }: ScrollViewProps) {
  return <scrollbox >{children}</scrollbox>
}

export function Modal({ children, visible }: ModalProps) {
  const { width, height } = useTerminalDimensions();
  return <box
    visible={visible}
    position="absolute"
    width={width}
    height={height}
    zIndex={10}
  >
    {children}
  </box>
}

export const Platform = {
  OS: "tui",
};

export default {
  View,
  Text,
}