import Service, { inject as service } from '@ember/service';
import FormsService from './forms';
import DS from 'ember-data';
import { IRecord } from '../interfaces/record';
import { assert } from '@ember/debug';
import { isEmpty } from '@ember/utils';
import { get } from '@ember/object'

export default class CollectorService extends Service {

    @service private intl!: any
    @service private forms!: FormsService
    @service private store!: DS.Store

    constructor() {
        super(...arguments)
    }

    public getTranslationForColumn(form: string, fieldName: string, removed: boolean = false) {
        if (fieldName === 'id') return 'id'

        if (fieldName.substring(0, 9) === 'row_info.')  return this.intl.t('general.' + fieldName)

        if (removed) return this.getBestTranslation(form, fieldName)

        const field = this.forms.fields(form)[fieldName]

        if (!field) assert('Field \'' + fieldName + '\' not found for form \'' + form + '\'')

        if (field.hasOwnProperty('name')) return field.name

        else return this.getBestTranslation(form, fieldName)
    }

    public getBestTranslation(form: string, fieldName: string) {
        const testKeys: string[] = ['report.' + form + '.' + fieldName, 'defaults.field.' + fieldName]

        const foundKey: string | undefined = testKeys.find(key => {
            return this.intl.exists(key)
        })

        if (foundKey) return this.intl.t(foundKey)
        else return (testKeys[0])
    }

    public copyRecord(record: IRecord) {
        const form = get(record, 'constructor.modelName')
        const jsonRecord: any = record.toJSON()
        for (const field of ['status']) {
            if (!isEmpty(jsonRecord[field])) {
                jsonRecord[field] = null
            }
        }

        record.eachRelationship((key: string, relationship: { kind: string; }) => {
            const relKind = relationship.kind
            if ((relKind === 'belongsTo' || relKind === 'hasMany') && !['export_salary', 'export_absence', 'row_info'].includes(key)) {
                if (this.forms.field(form, key).type === 'databasearray') {
                    const hasManyArr: any = []
                    record[key].forEach((hasManyRecord: IRecord) => {
                        hasManyArr.push(this.copyRecord(hasManyRecord))
                    })
                    jsonRecord[key] = hasManyArr
                } else {
                    jsonRecord[key] = record[key]
                }
            }
        })

        return this.store.createRecord(form, jsonRecord)
    }
}