import becca from "../becca/becca.js";
import eu from "./etapi_utils.js";
import mappers from "./mappers.js";
import attributeService from "../services/attributes.js";
import v from "./validators.js";
import type { Router } from "express";
import type { AttributeRow } from "../becca/entities/rows.js";
import type { ValidatorMap } from "./etapi-interface.js";

function register(router: Router) {
    eu.route(router, "get", "/etapi/attributes/:attributeId", (req, res, next) => {
        const attribute = eu.getAndCheckAttribute(req.params.attributeId);

        res.json(mappers.mapAttributeToPojo(attribute));
    });

    const ALLOWED_PROPERTIES_FOR_CREATE_ATTRIBUTE: ValidatorMap = {
        attributeId: [v.mandatory, v.notNull, v.isValidEntityId],
        noteId: [v.mandatory, v.notNull, v.isNoteId],
        type: [v.mandatory, v.notNull, v.isAttributeType],
        name: [v.mandatory, v.notNull, v.isString],
        value: [v.notNull, v.isString],
        isInheritable: [v.notNull, v.isBoolean],
        position: [v.notNull, v.isInteger]
    };

    eu.route(router, "post", "/etapi/attributes", (req, res, next) => {
        if (req.body.type === "relation") {
            eu.getAndCheckNote(req.body.value);
        }

        const _params = {};
        eu.validateAndPatch(_params, req.body, ALLOWED_PROPERTIES_FOR_CREATE_ATTRIBUTE);
        const params: AttributeRow = _params as AttributeRow;

        try {
            const attr = attributeService.createAttribute(params);

            res.status(201).json(mappers.mapAttributeToPojo(attr));
        } catch (e: any) {
            throw new eu.EtapiError(500, eu.GENERIC_CODE, e.message);
        }
    });

    const ALLOWED_PROPERTIES_FOR_PATCH_LABEL = {
        value: [v.notNull, v.isString],
        position: [v.notNull, v.isInteger]
    };

    const ALLOWED_PROPERTIES_FOR_PATCH_RELATION = {
        position: [v.notNull, v.isInteger]
    };

    eu.route(router, "patch", "/etapi/attributes/:attributeId", (req, res, next) => {
        const attribute = eu.getAndCheckAttribute(req.params.attributeId);

        if (attribute.type === "label") {
            eu.validateAndPatch(attribute, req.body, ALLOWED_PROPERTIES_FOR_PATCH_LABEL);
        } else if (attribute.type === "relation") {
            eu.getAndCheckNote(req.body.value);

            eu.validateAndPatch(attribute, req.body, ALLOWED_PROPERTIES_FOR_PATCH_RELATION);
        }

        attribute.save();

        res.json(mappers.mapAttributeToPojo(attribute));
    });

    eu.route(router, "delete", "/etapi/attributes/:attributeId", (req, res, next) => {
        const attribute = becca.getAttribute(req.params.attributeId);

        if (!attribute) {
            return res.sendStatus(204);
        }

        attribute.markAsDeleted();

        res.sendStatus(204);
    });
}

export default {
    register
};