import { Identifiable } from "@/data";
import { CourseDTO, courseDtoTransformer } from "@/api/dto/course";
import { OneWayTransformer, Transformer } from "@/serialization";
import { Edition } from "@/data/edition";
import moment from "moment";
import { Subset } from "@/helpers";

export interface EditionDTO extends Identifiable {
    editionStart: string,
    editionFinish: string,
    reportingStart: string,
    course: CourseDTO,
}

export interface EditionTeaserDTO extends Identifiable {
    editionStart: string,
    editionFinish: string,
    courseName: string,
}

export const editionTeaserDtoTransformer: OneWayTransformer<EditionTeaserDTO, Subset<Edition>> = {
    transform(subject: EditionTeaserDTO, context?: undefined): Subset<Edition> {
        return subject && {
            id: subject.id,
            startDate: moment(subject.editionStart),
            endDate: moment(subject.editionFinish),
            course: {
                name: subject.courseName,
            }
        }
    }
}

export const editionDtoTransformer: Transformer<EditionDTO, Edition> = {
    reverseTransform(subject: Edition, context: undefined): EditionDTO {
        return {
            id: subject.id,
            editionFinish: subject.endDate.toISOString(),
            editionStart: subject.startDate.toISOString(),
            course: courseDtoTransformer.reverseTransform(subject.course),
            reportingStart: subject.reportingStart.toISOString(),
        };
    },
    transform(subject: EditionDTO, context: undefined): Edition {
        return {
            id: subject.id,
            course: courseDtoTransformer.transform(subject.course),
            startDate: moment(subject.editionStart),
            endDate: moment(subject.editionFinish),
            minimumInternshipHours: 40,
            maximumInternshipHours: 160,
            proposalDeadline: moment(subject.reportingStart),
            reportingStart: moment(subject.reportingStart),
            reportingEnd: moment(subject.reportingStart).add(1, 'month'),
        };
    }
}