gfw-api/gfw-area

const logger = require('logger');
const ErrorSerializer = require('serializers/error.serializer');

class AreaValidatorV2 {

    static isObject(property) {
        return property instanceof Object && property.length === undefined;
    }

    static isBool(property) {
        return typeof property === 'boolean';
    }

    static notEmptyString(property) {
        return typeof property === 'string' && property.length > 0;
    }

    static isArray(property) {
        if (property instanceof Array) {
            const invalid = property.filter((str) => {
                const regex = RegExp(/^[a-zA-Z0-9\u00C0-\u024F\u1E00-\u1EFF_ ]*$/i);
                return (typeof str !== 'string' || !regex.test(str));
            });
            return (invalid.length === 0);
        }
        return false;
    }

    static async create(ctx, next) {
        logger.debug('Validating body for create area');
        ctx.checkBody('name').notEmpty().len(1, 100);
        ctx.checkBody('application').optional().check((application) => AreaValidatorV2.notEmptyString(application), 'cannot be empty');

        // Validate geostore field as hexadecimal only if present
        ctx.checkBody('geostore').optional();
        if (ctx.request.body.geostore) { ctx.checkBody('geostore').isHexadecimal(); }
        ctx.checkBody('geostoreDataApi').optional();

        // Validate geostore and geostoreDataApi were not provided at the same time
        if (
            ctx.request.body.geostore
            && ctx.request.body.geostore.length > 0
            && ctx.request.body.geostoreDataApi
            && ctx.request.body.geostoreDataApi.length > 0
        ) {
            ctx.throw(400, 'geostore and geostoreDataApi are mutually exclusive, cannot provide both at the same time');
        }

        ctx.checkBody('wdpaid').optional().isInt().toInt();
        ctx.checkBody('datasets').optional().isJSON();
        ctx.checkBody('iso').optional().check((iso) => AreaValidatorV2.isObject(iso), 'must be an object');
        ctx.checkBody('admin').optional().check((admin) => AreaValidatorV2.isObject(admin), 'must be an object');
        ctx.checkBody('use').optional().check((use) => AreaValidatorV2.isObject(use), 'must be an object');
        ctx.checkBody('env').optional().toLow().check((env) => AreaValidatorV2.notEmptyString(env), 'must be a string');
        ctx.checkBody('tags').optional().check((tags) => AreaValidatorV2.isArray(tags), 'must be an array of valid strings');
        ctx.checkBody('status').optional().check((status) => AreaValidatorV2.notEmptyString(status), 'must be a string - cannot be empty');
        ctx.checkBody('public').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('webhookUrl').optional().check((webhookUrl) => AreaValidatorV2.notEmptyString(webhookUrl), 'must be a string - cannot be empty');
        ctx.checkBody('monthlySummary').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('subscriptionId').optional().check((sub) => AreaValidatorV2.notEmptyString(sub), 'must be a string - cannot be empty');
        ctx.checkBody('email').optional().check((email) => AreaValidatorV2.notEmptyString(email), 'must be a string - cannot be empty');
        ctx.checkBody('language').optional().check((lang) => AreaValidatorV2.notEmptyString(lang), 'must be a string - cannot be empty');

        if (ctx.errors) {
            ctx.body = ErrorSerializer.serializeValidationBodyErrors(ctx.errors);
            ctx.status = 400;
            return;
        }
        await next();
    }

    static async updateByGeostore(ctx, next) {
        logger.debug('Validating body for update area by geostore');
        ctx.checkBody('/update_params/application', true).optional().check(
            (applications) => applications.forEach((application) => AreaValidatorV2.notEmptyString(application)),
            'Applications can only have string values'
        );

        if (ctx.errors) {
            ctx.body = ErrorSerializer.serializeValidationBodyErrors(ctx.errors);
            ctx.status = 400;
            return;
        }
        await next();
    }

    static async update(ctx, next) {
        logger.debug('Validating body for update area');
        ctx.checkBody('name').optional().len(2, 100);
        ctx.checkBody('application').optional().check((application) => AreaValidatorV2.notEmptyString(application), 'cannot be empty');

        // Validate geostore field as hexadecimal only if present
        ctx.checkBody('geostore').optional();
        if (ctx.request.body.geostore) { ctx.checkBody('geostore').isHexadecimal(); }
        ctx.checkBody('geostoreDataApi').optional();

        // Validate geostore and geostoreDataApi were not provided at the same time
        if (
            ctx.request.body.geostore
            && ctx.request.body.geostore.length > 0
            && ctx.request.body.geostoreDataApi
            && ctx.request.body.geostoreDataApi.length > 0
        ) {
            ctx.throw(400, 'geostore and geostoreDataApi are mutually exclusive, cannot provide both at the same time');
        }

        ctx.checkBody('wdpaid').optional().isInt();
        ctx.checkBody('datasets').optional().isJSON();
        ctx.checkBody('iso').optional().check((iso) => AreaValidatorV2.isObject(iso), 'must be an object');
        ctx.checkBody('admin').optional().check((admin) => AreaValidatorV2.isObject(admin), 'must be an object');
        ctx.checkBody('use').optional().check((use) => AreaValidatorV2.isObject(use), 'must be an object');
        ctx.checkBody('env').optional().check((env) => AreaValidatorV2.notEmptyString(env), 'must be a string');
        ctx.checkBody('templateId').optional();
        ctx.checkBody('tags').optional().check((tags) => AreaValidatorV2.isArray(tags), 'must be an array of valid strings');
        ctx.checkBody('status').optional().check((status) => AreaValidatorV2.notEmptyString(status), 'must be a string - cannot be empty');
        ctx.checkBody('public').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('fireAlerts').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('deforestationAlerts').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('webhookUrl').optional().check((webhookUrl) => AreaValidatorV2.notEmptyString(webhookUrl), 'must be a string - cannot be empty');
        ctx.checkBody('monthlySummary').optional().check((pub) => AreaValidatorV2.isBool(pub), 'must be boolean');
        ctx.checkBody('subscriptionId').optional().check((sub) => AreaValidatorV2.notEmptyString(sub), 'must be a string - cannot be empty');
        ctx.checkBody('email').optional().check((email) => AreaValidatorV2.notEmptyString(email), 'must be a string - cannot be empty');
        ctx.checkBody('language').optional().check((lang) => AreaValidatorV2.notEmptyString(lang), 'must be a string - cannot be empty');

        if (ctx.errors) {
            ctx.body = ErrorSerializer.serializeValidationBodyErrors(ctx.errors);
            ctx.status = 400;
            return;
        }
        await next();
    }

}

module.exports = AreaValidatorV2;