/**
 * @swagger
 * tags:
 *   name: Regions
 *   description: Access region data.
 */

const router = require("express").Router();

// Models
const getRegions = require("../models/getRegions.js");
const getRegionById = require("../models/getRegionById.js");
const getRegionNearbyById = require("../models/getRegionNearbyById.js")

// Utils
const path = require("path");
const fs = require("fs");
const _ = require('lodash')
const sqlSanitzer = require("../util/sqlstring_sanitizer.js")

module.exports = dbConn => {
    /**
     * @swagger
     * /regions:
     *  get:
     *   summary: Get all regions
     *   tags: [Regions]
     *   responses:
     *    "200":
     *     description: Returns available data for all regions
     */
    router.get("/api/v1/regions", async (req, res) => {
        const data = await getRegions(dbConn)
        if (req.query.randomize) {
            const randomize = sqlSanitzer(req.query.randomize)
            res.json(_.sampleSize(data, randomize))
        } else {
            res.json(data);
        }
    });

    /**
     * @swagger
     * /regions/{id}:
     *  get:
     *   summary: Get a specific region by id
     *   tags: [Regions]
     *   parameters:
     *   - name: "id"
     *     in: "path"
     *     required: true
     *     type: int
     *   responses:
     *    "200":
     *     description: Returns available data for the region
     */
    router.get("/api/v1/regions/:id", async (req, res) => {
        console.log(typeof req.params.id)
        const id = sqlSanitzer(req.params.id);
        console.log(id)
       res.json(await getRegionById(dbConn, id))
    });

    /**
     * @swagger
     * /regions/{id}/image:
     *  get:
     *   summary: Get image for specific region
     *   tags: [Regions]
     *   parameters:
     *   - name: "id"
     *     in: "path"
     *     required: true
     *     type: int
     *   responses:
     *    "200":
     *     description: Returns the image for a specific region
     *    "404":
     *     description: Returns a placeholder image for the region
     */
    router.get('/api/v1/regions/:id/image', (req, res) => {
        console.log("HERE")
        if (fs.existsSync(path.join(__dirname, `../data/regions/images/${req.params.id}.jpg`))) {
            console.log("EXISTS")
            res.status(200).sendFile(path.join(__dirname, `../data/regions/images/${req.params.id}.jpg`))
        } else {
            console.log("NOT EXISTS")
            res.status(404).sendFile(path.join(__dirname, `../data/regions/images/x.png`))
        }
    })

    /**
     * @swagger
     * /regions/{id}/nearby:
     *  get:
     *   summary: Get nearby places of a specific region by id
     *   tags: [Regions]
     *   parameters:
     *   - name: "id"
     *     in: "path"
     *     required: true
     *     type: int
     *   responses:
     *    "200":
     *     description: Returns all nearby places for the region
     */
    router.get("/api/v1/regions/:id/nearby", async (req,res) => {
        const id = sqlSanitzer(req.params.id);
        res.json(await getRegionNearbyById(dbConn,id))
    });
    return router;
};