/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 */

import {Typography, Popover, Input, Select, Checkbox} from 'antd';
import {DataInspectorSetValue} from './DataInspectorNode';
import {PureComponent} from 'react';
import styled from '@emotion/styled';
import {SketchPicker, CompactPicker} from 'react-color';
import React, {KeyboardEvent} from 'react';
import {HighlightContext} from '../Highlight';
import {parseColor} from '../../utils/parseColor';
import {TimelineDataDescription} from './TimelineDataDescription';
import {theme} from '../theme';
import {EditOutlined} from '@ant-design/icons';
import type {CheckboxChangeEvent} from 'antd/lib/checkbox';

const {Link} = Typography;

// Based on FIG UI Core, TODO: does that still makes sense?
export const presetColors = Object.values({
  blue: '#4267b2', // Blue - Active-state nav glyphs, nav bars, links, buttons
  green: '#42b72a', // Green - Confirmation, success, commerce and status
  red: '#FC3A4B', // Red - Badges, error states
  blueGray: '#5f6673', // Blue Grey
  slate: '#b9cad2', // Slate
  aluminum: '#a3cedf', // Aluminum
  seaFoam: '#54c7ec', // Sea Foam
  teal: '#6bcebb', // Teal
  lime: '#a3ce71', // Lime
  lemon: '#fcd872', // Lemon
  orange: '#f7923b', // Orange
  tomato: '#fb724b', // Tomato - Tometo? Tomato.
  cherry: '#f35369', // Cherry
  pink: '#ec7ebd', // Pink
  grape: '#8c72cb', // Grape
});

export const NullValue = styled.span({
  color: theme.semanticColors.nullValue,
});
NullValue.displayName = 'DataDescription:NullValue';

const UndefinedValue = styled.span({
  color: theme.semanticColors.nullValue,
});
UndefinedValue.displayName = 'DataDescription:UndefinedValue';

export const StringValue = styled.span({
  color: theme.semanticColors.stringValue,
  wordWrap: 'break-word',
});
StringValue.displayName = 'DataDescription:StringValue';

const ColorValue = styled.span({
  color: theme.semanticColors.colorValue,
});
ColorValue.displayName = 'DataDescription:ColorValue';

const SymbolValue = styled.span({
  color: theme.semanticColors.stringValue,
});
SymbolValue.displayName = 'DataDescription:SymbolValue';

export const NumberValue = styled.span({
  color: theme.semanticColors.numberValue,
});
NumberValue.displayName = 'DataDescription:NumberValue';

export const BooleanValue = styled.span({
  color: theme.semanticColors.booleanValue,
});
BooleanValue.displayName = 'DataDescription:BooleanValue';

const ColorBox = styled.span<{color: string}>((props) => ({
  backgroundColor: props.color,
  boxShadow: `inset 0 0 1px ${theme.black}`,
  display: 'inline-block',
  height: 12,
  marginRight: 4,
  verticalAlign: 'middle',
  width: 12,
  borderRadius: 4,
}));
ColorBox.displayName = 'DataDescription:ColorBox';

const FunctionKeyword = styled.span({
  color: theme.semanticColors.nullValue,
  fontStyle: 'italic',
});
FunctionKeyword.displayName = 'DataDescription:FunctionKeyword';

const FunctionName = styled.span({
  fontStyle: 'italic',
});
FunctionName.displayName = 'DataDescription:FunctionName';

const ColorPickerDescription = styled.div({
  display: 'inline',
  position: 'relative',
});
ColorPickerDescription.displayName = 'DataDescription:ColorPickerDescription';

const EmptyObjectValue = styled.span({
  fontStyle: 'italic',
});
EmptyObjectValue.displayName = 'DataDescription:EmptyObjectValue';

export type DataDescriptionType =
  | 'number'
  | 'string'
  | 'boolean'
  | 'undefined'
  | 'null'
  | 'object'
  | 'array'
  | 'date'
  | 'symbol'
  | 'function'
  | 'bigint'
  | 'text' // deprecated, please use string
  | 'enum' // unformatted string
  | 'color'
  | 'picker' // multiple choise item like an, eehhh, enum
  | 'timeline'
  | 'color_lite'; // color with limited palette, specific for fblite;

type DataDescriptionProps = {
  path?: Array<string>;
  type: DataDescriptionType;
  value: any;
  extra?: any;
  setValue: DataInspectorSetValue | null | undefined;
};

type DescriptionCommitOptions = {
  value: any;
  keep: boolean;
  clear: boolean;
  set: boolean;
};

class NumberTextEditor extends PureComponent<{
  commit: (opts: DescriptionCommitOptions) => void;
  type: DataDescriptionType;
  value: any;
  origValue: any;
}> {
  onNumberTextInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const val =
      this.props.type === 'number'
        ? parseFloat(e.target.value)
        : e.target.value;
    this.props.commit({
      clear: false,
      keep: true,
      value: val,
      set: false,
    });
  };

  onNumberTextInputKeyDown = (e: KeyboardEvent) => {
    if (e.key === 'Enter') {
      const val =
        this.props.type === 'number'
          ? parseFloat(this.props.value)
          : this.props.value;
      this.props.commit({clear: true, keep: true, value: val, set: true});
    } else if (e.key === 'Escape') {
      this.props.commit({
        clear: true,
        keep: false,
        value: this.props.origValue,
        set: false,
      });
    }
  };

  onNumberTextRef = (ref: HTMLElement | undefined | null) => {
    if (ref) {
      ref.focus();
    }
  };

  onNumberTextBlur = () => {
    this.props.commit({
      clear: true,
      keep: true,
      value: this.props.value,
      set: true,
    });
  };

  render() {
    const extraProps: any = {};
    if (this.props.type === 'number') {
      // render as a HTML number input
      extraProps.type = 'number';

      // step="any" allows any sort of float to be input, otherwise we're limited
      // to decimal
      extraProps.step = 'any';
    }

    return (
      <Input
        key="input"
        {...extraProps}
        size="small"
        onChange={this.onNumberTextInputChange}
        onKeyDown={this.onNumberTextInputKeyDown}
        ref={this.onNumberTextRef}
        onBlur={this.onNumberTextBlur}
        value={this.props.value}
        style={{fontSize: 11}}
      />
    );
  }
}

type DataDescriptionState = {
  editing: boolean;
  origValue: any;
  value: any;
};

export class DataDescription extends PureComponent<
  DataDescriptionProps,
  DataDescriptionState
> {
  constructor(props: DataDescriptionProps, context: Object) {
    super(props, context);

    this.state = {
      editing: false,
      origValue: '',
      value: '',
    };
  }

  commit = (opts: DescriptionCommitOptions) => {
    const {path, setValue} = this.props;
    if (opts.keep && setValue && path) {
      const val = opts.value;
      this.setState({value: val});
      if (opts.set) {
        setValue(path, val);
      }
    }

    if (opts.clear) {
      this.setState({
        editing: false,
        origValue: '',
        value: '',
      });
    }
  };

  _renderEditing() {
    const {type, extra} = this.props;
    const {origValue, value} = this.state;

    if (
      type === 'string' ||
      type === 'text' ||
      type === 'number' ||
      type === 'enum'
    ) {
      return (
        <NumberTextEditor
          type={type}
          value={value}
          origValue={origValue}
          commit={this.commit}
        />
      );
    }

    if (type === 'color') {
      return <ColorEditor value={value} commit={this.commit} />;
    }

    if (type === 'color_lite') {
      return (
        <ColorEditor
          value={value}
          colorSet={extra.colorSet}
          commit={this.commit}
        />
      );
    }

    return null;
  }

  _hasEditUI() {
    const {type} = this.props;
    return (
      type === 'string' ||
      type === 'text' ||
      type === 'number' ||
      type === 'enum' ||
      type === 'color' ||
      type === 'color_lite'
    );
  }

  onEditStart = () => {
    this.setState({
      editing: this._hasEditUI(),
      origValue: this.props.value,
      value: this.props.value,
    });
  };

  render(): any {
    if (this.state.editing) {
      return this._renderEditing();
    } else {
      return (
        <DataDescriptionPreview
          type={this.props.type}
          value={this.props.value}
          extra={this.props.extra}
          editable={!!this.props.setValue}
          commit={this.commit}
          onEdit={this.onEditStart}
        />
      );
    }
  }
}

class ColorEditor extends PureComponent<{
  value: any;
  colorSet?: Array<string | number>;
  commit: (opts: DescriptionCommitOptions) => void;
}> {
  onBlur = (newVisibility: boolean) => {
    if (!newVisibility) {
      this.props.commit({
        clear: true,
        keep: false,
        value: this.props.value,
        set: true,
      });
    }
  };

  onChange = ({
    hex,
    rgb: {a, b, g, r},
  }: {
    hex: string;
    rgb: {a: number; b: number; g: number; r: number};
  }) => {
    const prev = this.props.value;

    let val;
    if (typeof prev === 'string') {
      if (a === 1) {
        // hex is fine and has an implicit 100% alpha
        val = hex;
      } else {
        // turn into a css rgba value
        val = `rgba(${r}, ${g}, ${b}, ${a})`;
      }
    } else if (typeof prev === 'number') {
      // compute RRGGBBAA value
      val = (Math.round(a * 255) & 0xff) << 24;
      val |= (r & 0xff) << 16;
      val |= (g & 0xff) << 8;
      val |= b & 0xff;

      const prevClear = ((prev >> 24) & 0xff) === 0;
      const onlyAlphaChanged = (prev & 0x00ffffff) === (val & 0x00ffffff);

      if (!onlyAlphaChanged && prevClear) {
        val = 0xff000000 | (val & 0x00ffffff);
      }
    } else {
      return;
    }

    this.props.commit({clear: false, keep: true, value: val, set: true});
  };

  onChangeLite = ({
    rgb: {a, b, g, r},
  }: {
    rgb: {a: number; b: number; g: number; r: number};
  }) => {
    const prev = this.props.value;

    if (typeof prev !== 'number') {
      return;
    }
    // compute RRGGBBAA value
    let val = (Math.round(a * 255) & 0xff) << 24;
    val |= (r & 0xff) << 16;
    val |= (g & 0xff) << 8;
    val |= b & 0xff;

    this.props.commit({clear: false, keep: true, value: val, set: true});
  };

  render() {
    const colorInfo = parseColor(this.props.value);
    if (!colorInfo) {
      return null;
    }

    return (
      <Popover
        trigger={'click'}
        onVisibleChange={this.onBlur}
        content={() =>
          this.props.colorSet ? (
            <CompactPicker
              color={colorInfo}
              colors={this.props.colorSet
                .filter((x) => x != 0)
                .map(parseColor)
                .map((rgba) => {
                  if (!rgba) {
                    return '';
                  }
                  return `rgba(${rgba.r}, ${rgba.g}, ${rgba.b}, ${rgba.a})`;
                })}
              onChange={(color: {
                hex: string;
                hsl: {
                  a?: number;
                  h: number;
                  l: number;
                  s: number;
                };
                rgb: {a?: number; b: number; g: number; r: number};
              }) => {
                this.onChangeLite({rgb: {...color.rgb, a: color.rgb.a || 0}});
              }}
            />
          ) : (
            <SketchPicker
              color={colorInfo}
              presetColors={presetColors}
              onChange={(color: {
                hex: string;
                hsl: {
                  a?: number;
                  h: number;
                  l: number;
                  s: number;
                };
                rgb: {a?: number; b: number; g: number; r: number};
              }) => {
                this.onChange({
                  hex: color.hex,
                  rgb: {...color.rgb, a: color.rgb.a || 1},
                });
              }}
            />
          )
        }>
        <ColorPickerDescription>
          <DataDescriptionPreview
            type="color"
            value={this.props.value}
            extra={this.props.colorSet}
            editable={false}
            commit={this.props.commit}
          />
        </ColorPickerDescription>
      </Popover>
    );
  }
}

class DataDescriptionPreview extends PureComponent<{
  type: DataDescriptionType;
  value: any;
  extra?: any;
  editable: boolean;
  commit: (opts: DescriptionCommitOptions) => void;
  onEdit?: () => void;
}> {
  onClick = () => {
    const {onEdit} = this.props;
    if (this.props.editable && onEdit) {
      onEdit();
    }
  };

  render() {
    const {type, value} = this.props;

    const description = (
      <DataDescriptionContainer
        type={type}
        value={value}
        editable={this.props.editable}
        commit={this.props.commit}
      />
    );

    // booleans are always editable so don't require the onEditStart handler
    if (type === 'boolean') {
      return description;
    }

    return (
      <span onClick={this.onClick} role="button" tabIndex={-1}>
        {description}
      </span>
    );
  }
}

type Picker = {
  values: Set<string>;
  selected: string;
};

class DataDescriptionContainer extends PureComponent<{
  type: DataDescriptionType;
  value: any;
  editable: boolean;
  commit: (opts: DescriptionCommitOptions) => void;
}> {
  static contextType = HighlightContext; // Replace with useHighlighter
  context!: React.ContextType<typeof HighlightContext>;

  onChangeCheckbox = (e: CheckboxChangeEvent) => {
    this.props.commit({
      clear: true,
      keep: true,
      value: e.target.checked,
      set: true,
    });
  };

  render(): any {
    const {type, editable, value: val} = this.props;
    const highlighter = this.context;

    switch (type) {
      case 'timeline': {
        return (
          <>
            <TimelineDataDescription
              canSetCurrent={editable}
              timeline={JSON.parse(val)}
              onClick={(id) => {
                this.props.commit({
                  value: id,
                  keep: true,
                  clear: false,
                  set: true,
                });
              }}
            />
          </>
        );
      }

      case 'number':
        return <NumberValue>{+val}</NumberValue>;

      case 'color': {
        const colorInfo = parseColor(val);
        if (typeof val === 'number' && val === 0) {
          return <UndefinedValue>(not set)</UndefinedValue>;
        } else if (colorInfo) {
          const {a, b, g, r} = colorInfo;
          return (
            <>
              <ColorBox
                key="color-box"
                color={`rgba(${r}, ${g}, ${b}, ${a})`}
              />
              <ColorValue key="value">
                rgba({r}, {g}, {b}, {a === 1 ? '1' : a.toFixed(2)})
              </ColorValue>
            </>
          );
        } else {
          return <span>Malformed color</span>;
        }
      }

      case 'color_lite': {
        const colorInfo = parseColor(val);
        if (typeof val === 'number' && val === 0) {
          return <UndefinedValue>(not set)</UndefinedValue>;
        } else if (colorInfo) {
          const {a, b, g, r} = colorInfo;
          return (
            <>
              <ColorBox
                key="color-box"
                color={`rgba(${r}, ${g}, ${b}, ${a})`}
              />
              <ColorValue key="value">
                rgba({r}, {g}, {b}, {a === 1 ? '1' : a.toFixed(2)})
              </ColorValue>
            </>
          );
        } else {
          return <span>Malformed color</span>;
        }
      }

      case 'picker': {
        const picker: Picker = JSON.parse(val);
        return (
          <Select
            disabled={!this.props.editable}
            options={Array.from(picker.values).map((value) => ({
              value,
              label: value,
            }))}
            value={picker.selected}
            onChange={(value: string) =>
              this.props.commit({
                value,
                keep: true,
                clear: false,
                set: true,
              })
            }
            size="small"
            style={{fontSize: 11}}
            dropdownMatchSelectWidth={false}
          />
        );
      }

      case 'text':
      case 'string':
        const isUrl = val.startsWith('http://') || val.startsWith('https://');
        if (isUrl) {
          return (
            <>
              <Link href={val}>{highlighter.render(val)}</Link>
              {editable && (
                <EditOutlined
                  style={{
                    color: theme.disabledColor,
                    cursor: 'pointer',
                    marginLeft: 8,
                  }}
                />
              )}
            </>
          );
        } else {
          return (
            <StringValue>{highlighter.render(`"${val || ''}"`)}</StringValue>
          );
        }

      case 'enum':
        return <StringValue>{highlighter.render(val)}</StringValue>;

      case 'boolean':
        return editable ? (
          <Checkbox
            checked={!!val}
            disabled={!editable}
            onChange={this.onChangeCheckbox}
          />
        ) : (
          <BooleanValue>{'' + val}</BooleanValue>
        );

      case 'undefined':
        return <UndefinedValue>undefined</UndefinedValue>;

      case 'date':
        if (Object.prototype.toString.call(val) === '[object Date]') {
          return <span>{val.toString()}</span>;
        } else {
          return <span>{val}</span>;
        }

      case 'null':
        return <NullValue>null</NullValue>;

      // no description necessary as we'll typically wrap it in [] or {} which
      // already denotes the type
      case 'array':
        return val.length <= 0 ? <EmptyObjectValue>[]</EmptyObjectValue> : null;
      case 'object':
        return Object.keys(val ?? {}).length <= 0 ? (
          <EmptyObjectValue>{'{}'}</EmptyObjectValue>
        ) : null;

      case 'function':
        return (
          <span>
            <FunctionKeyword>function</FunctionKeyword>
            <FunctionName>&nbsp;{val.name}()</FunctionName>
          </span>
        );

      case 'symbol':
        return <SymbolValue>Symbol()</SymbolValue>;

      default:
        return <span>Unknown type "{type}"</span>;
    }
  }
}