import { IBooleanMap } from '@leafer-ui/interface'

const money = '¥￥＄€£￡¢￠'
const letter = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz'

const langBefore = '《（「〈『〖【〔｛┌＜‘“＝' + money
const langAfter = '》）」〉』〗】〕｝┐＞’”！？，、。：；‰'
const langSymbol = '≮≯≈≠＝…'
const langBreak = '—／～｜┆·'

const beforeChar = '{[(<\'"' + langBefore
const afterChar = '>)]}%!?,.:;\'"' + langAfter
const symbolChar = afterChar + '_#~&*+\\=|' + langSymbol
const breakChar = '- ' + langBreak

const cjkRangeList = [
    [0x4E00, 0x9FFF], // CJK Unified Ideographs
    [0x3400, 0x4DBF], // CJK Unified Ideographs Extension A
    [0x20000, 0x2A6DF], // CJK Unified Ideographs Extension B
    [0x2A700, 0x2B73F], // CJK Unified Ideographs Extension C
    [0x2B740, 0x2B81F], // CJK Unified Ideographs Extension D
    [0x2B820, 0x2CEAF], // CJK Unified Ideographs Extension E
    [0x2CEB0, 0x2EBEF], // CJK Unified Ideographs Extension F
    [0x30000, 0x3134F], // CJK Unified Ideographs Extension G
    [0x31350, 0x323AF], // CJK Unified Ideographs Extension H
    [0x2E80, 0x2EFF], // CJK Radicals Supplement
    [0x2F00, 0x2FDF], // Kangxi Radicals
    [0x2FF0, 0x2FFF], // Ideographic Description Characters
    [0x3000, 0x303F], // CJK Symbols and Punctuation
    [0x31C0, 0x31EF], // CJK Strokes
    [0x3200, 0x32FF], // Enclosed CJK Letters and Months
    [0x3300, 0x33FF], // CJK Compatibility
    [0xF900, 0xFAFF], // CJK Compatibility Ideographs
    [0xFE30, 0xFE4F], // CJK Compatibility Forms
    [0x1F200, 0x1F2FF], // Enclosed Ideographic Supplement
    [0x2F800, 0x2FA1F], // CJK Compatibility Ideographs Supplement
]

const cjkReg = new RegExp(cjkRangeList.map(([start, end]) => `[\\u${start.toString(16)}-\\u${end.toString(16)}]`).join('|'))

function mapChar(str: string): IBooleanMap {
    const map: IBooleanMap = {}
    str.split('').forEach(char => map[char] = true)
    return map
}

const letterMap = mapChar(letter)
const beforeMap = mapChar(beforeChar)
const afterMap = mapChar(afterChar)
const symbolMap = mapChar(symbolChar)
const breakMap = mapChar(breakChar)

export enum CharType {
    Letter, // en... number
    Single, // cjk
    Before, // (
    After, // )
    Symbol, // *
    Break, // space
}

const { Letter, Single, Before, After, Symbol, Break } = CharType

export function getCharType(char: string): CharType {

    if (letterMap[char]) {
        return Letter
    } else if (breakMap[char]) {
        return Break
    } else if (beforeMap[char]) {
        return Before
    } else if (afterMap[char]) {
        return After
    } else if (symbolMap[char]) {
        return Symbol
    } else if (cjkReg.test(char)) {
        return Single
    } else {
        return Letter
    }

}