import { PluginObject } from 'vue'


export interface IOptions {
    sources: { [key: string]: any }
}

export const defaultOptions: IOptions = {
    sources: {},
}

// export function parse1 (v: any, str: string, def?: any): any {
//     const { sources } = defaultOptions
//     const [ sKey, iKey, dKey ] = str.split('.')
//     const result = sources[sKey]?.find(source => source[iKey] === v)
//     return dKey && result ? result[dKey] ?? def : result ?? def
// }

export function parse (source: (string | any[]), labelKey?: string, valueKey?: string): any {
    const { sources } = defaultOptions
    if (typeof source === 'string') {
        source = sources[source]
    }
    if (!labelKey) return source
    return (source as []).reduce((r, item) => {
        const k = item[labelKey] as string
        r[k] = valueKey ? item[valueKey] : item
        return r
    }, {})
}

const Parse: PluginObject<IOptions> = {
    install (Vue, options) {
        this.setDefaultOptions(options)
        Vue.prototype.$parse = parse
    },
    // 设置默认配置
    setDefaultOptions (options?: IOptions) {
        Object.assign(defaultOptions, options)
    },
}

export default Parse