module.exports = Self => {
    Self.remoteMethodCtx('uploadFile', {
        description: 'Upload and attach a file',
        accessType: 'WRITE',
        accepts: [{
            arg: 'id',
            type: 'number',
            description: 'The entry id',
            http: {source: 'path'}
        },
        {
            arg: 'warehouseId',
            type: 'number',
            description: 'The warehouse id',
            required: true
        },
        {
            arg: 'companyId',
            type: 'number',
            description: 'The company id',
            required: true
        },
        {
            arg: 'dmsTypeId',
            type: 'number',
            description: 'The dms type id',
            required: true
        },
        {
            arg: 'reference',
            type: 'string',
            required: true
        },
        {
            arg: 'description',
            type: 'string',
            required: true
        },
        {
            arg: 'hasFile',
            type: 'boolean',
            description: 'True if has an attached file',
            required: true
        }],
        returns: {
            type: 'object',
            root: true
        },
        http: {
            path: `/:id/uploadFile`,
            verb: 'POST'
        }
    });

    Self.uploadFile = async(ctx, id, options) => {
        const {Dms, EntryDms} = Self.app.models;
        const myOptions = {};
        let tx;

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        if (!myOptions.transaction) {
            tx = await Self.beginTransaction({});
            myOptions.transaction = tx;
        }

        try {
            const uploadedFiles = await Dms.uploadFile(ctx, myOptions);

            const promises = uploadedFiles.map(dms => EntryDms.create({
                entryFk: id,
                dmsFk: dms.id
            }, myOptions));
            await Promise.all(promises);

            if (tx) await tx.commit();

            return uploadedFiles;
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };
};