import fs from "fs";


let sourceFilePath: string = './chargemap_data/hurepoix.json'

/**
 makes a geojson from chargemap layer data
 */
function convertChargemapFile(sourceFilePath: string) {
    fs.readFile(sourceFilePath, 'utf8', function (err, data) {
        let data_transformed: any = JSON.parse(data)
        let base_dataset: any = {type: 'FeatureCollection', features: []}
        let base_point: any = {
            type: 'Feature',
            geometry: {
                type: 'Point',
                coordinates: []
            },
            properties: {
                amenity: "charging_station"
            }
        }
        console.log('data_transformed.items.length', data_transformed.items.length)
        data_transformed.items.forEach((item: any) => {

            let new_point: any = {...base_point}

            if (item.type == 'point') {

                new_point.geometry.coordinates = [
                    item.properties?.lat,
                    item.properties?.lng,
                ]

            } else if (item.type == 'pool') {
                new_point.geometry.coordinates = [
                    item.pool.gps_coordinates.lon,
                    item.pool.gps_coordinates.lat,
                ]
                console.log('new_point.geometry.coordinates', new_point.geometry.coordinates)

            }

            base_dataset.features.push(new_point)
        })


        console.log('base_dataset.features.length', base_dataset.features.length)
        if (base_dataset) {

            writeFile('hurepoix_geojson.json', JSON.stringify(base_dataset, null, 2))
        }

    })
}


/**
 * crée un fichier dans le dossier par défaut, output
 * @param fileName
 * @param fileContent
 */
function writeFile(fileName: string, fileContent: any) {


    let output_folder = 'output';
    return fs.writeFile(
        `./${output_folder}/${fileName}`,
        fileContent,
        'utf8',
        (err) => {
            if (err) {
                console.log(`Error writing file: ${err}`)
            } else {
                console.log(`File ${fileName} is written successfully!`)
            }
        }
    )
}

convertChargemapFile(sourceFilePath)