const _find = require('./find');
const httpStatus = require('http-status');
const { extractParamsFromRequest, handleErrorResponse, handleResultResponse } = require('../../helpers/controller.helper');

function buildContext(req, res) {
    return {
        user: req.user
    }
}

const defaultOptions = {
    MODULE_NAME: 'default',
    params: {
        find: { includeAll: true },
        findOne: { includeAll: true, paginate: { limit: 1, page: 1 } },
        count: {},
    }
}

const generateControllers = (service, extraControllers = {}, options = {}) => {
    const _options = {
        ...defaultOptions,
        ...options
    };

    const defaultControllers = {
        find: async (req, res, next) => {            
            const params = extractParamsFromRequest(req, res, _options.params.find);

            try {
                const result = await service.fetchAll(params, buildContext(req, res));                
                return handleResultResponse(result.rows, result.count, params, res);
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'find', error, res)
            }
        },

        findOne: async (req, res, next) => {
            const params = extractParamsFromRequest(req, res, _options.params.findOne);

            try {
                const result = await service.fetchOne(params, buildContext(req, res));
                return handleResultResponse(result, null, params, res, (result === null) ? httpStatus.NOT_FOUND : httpStatus.OK);
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'findOne', error, res)
            }
        },

        count: async(req, res, next) => {
            const params = extractParamsFromRequest(req, res, _options.params.count);

            try {
                const result = await service.count(params, buildContext(req, res));
                return handleResultResponse(result, null, params, res);
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'count', error, res)
            }
        },

        create: async (req, res, next) => {
            try {
                const result = await service.create(req.body, buildContext(req, res));                
                return handleResultResponse(result, null, null, res, httpStatus.CREATED)
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'create', error, res)
            }
        },

        update: async (req, res, next) => {
            try {
                const result = await service.update(req.params, req.body, buildContext(req, res));
                return handleResultResponse(result, null, req.params, res, httpStatus.OK)
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'update', error, res)
            }
        },

        delete: async (req, res, next) => {
            try {
                const result = await service.delete(req.params, buildContext(req, res));
                return handleResultResponse(result, null, req.params, res, httpStatus.NO_CONTENT);
            } catch (error) {
                handleErrorResponse(_options.MODULE_NAME, 'delete', error, res)
            }
        },
    }

    //const associationControllers = generateAssociationControllers(model, options);

    //console.log(associationControllers);

    return {
        ...defaultControllers,
        //...associationControllers
        ...extraControllers
    }
}


module.exports = generateControllers;