const { BrowserWindow, app } = require('electron')
const fs = require('fs')
const path = require('path')
const { Blob } = require('buffer')
const dotenv = require('dotenv')
//const session_start = 'https://nextgenerations-cities.encs.concordia.ca/api/v1.4/session/start'
//const insel_meb = 'https://nextgenerations-cities.encs.concordia.ca/api/v1.4/workflow/insel-monthly-energy-balance'

const session_start = 'http://127.0.1:15789/v1.4/session/start'
const insel_meb = 'http://127.0.0.1:15789/v1.4/workflow/insel-monthly-energy-balance'


exports.run = async (application, param, tmp_path) => {
    console.log(`Executing ${application}`)
    dotenv.config({ path: path.resolve(`${app.getAppPath()}/environments/workflow_launcher/.env`) })
    const application_uuid = process.env.APPLICATION
    const username = process.env.APPLICATION_USERNAME
    const password = process.env.APPLICATION_PASSWORD
    let response = await fetch(session_start, {
        method: 'PUT',
        headers: {
            'Content-type': 'application/json',
            'username': username,
            'password': password,
            'application-uuid': application_uuid,
            'accept': 'application/json'
        }
    })
    if (response.status == 200) {
        const session_id = response.headers.get('session_id')
        let token = response.headers.get('token')
        console.log(`token: ${token}`)
        let formData = new FormData()
        formData.append('height_field', param['height_field'])
        formData.append('year_of_construction_field', param['year_of_construction_field'])
        formData.append('function_field', param['function_field'])
        formData.append('function_to_hub', param['function_to_hub'])
        formData.append('construction_handler', param['construction_handler'])
        formData.append('usage_handler', param['usage_handler'])
        var filename = param['geometry_file'].replace(/^.*[\\/]/, '')
        formData.append('geometry_file', new Blob([fs.readFileSync(param['geometry_file'])]), filename)

        response = await fetch(insel_meb, {
            method: 'POST',
            headers: {
                'session-id': session_id,
                'token': token,
                'application-uuid': application_uuid,
                'accept': 'application/json'
            },
            body: formData
        }, 600000)
        var error = ''
        if (response.status == 200) {
            results = await response.json()
            var meb_header = 'BUILDING NAME;TOTAL HEATING AREA;YEAR_OF_CONSTRUCTION;FUNCTION'
            meb_header = `${meb_header};YEARLY COOLING DEMAND;YEARLY HEATING DEMAND;MONTHLY COOLING DEMAND(JAN);MONTHLY COOLING DEMAND(FEB);MONTHLY COOLING DEMAND(MAR);MONTHLY COOLING DEMAND(APR);MONTHLY COOLING DEMAND(MAY);MONTHLY COOLING DEMAND(JUN);MONTHLY COOLING DEMAND(JUL);MONTHLY COOLING DEMAND(AUG);MONTHLY COOLING DEMAND(SEPT);MONTHLY COOLING DEMAND(OCT);MONTHLY COOLING DEMAND(NOV);MONTHLY COOLING DEMAND(DEC);MONTHLY HEATING DEMAND(JAN);MONTHLY HEATING DEMAND(FEB);MONTHLY HEATING DEMAND(MAR);MONTHLY HEATING DEMAND(APR);MONTHLY HEATING DEMAND(MAY);MONTHLY HEATING DEMAND(JUN);MONTHLY HEATING DEMAND(JUL);MONTHLY HEATING DEMAND(AUG);MONTHLY HEATING DEMAND(SEPT);MONTHLY HEATING DEMAND(OCT);MONTHLY HEATING DEMAND(NOV);MONTHLY HEATING DEMAND(DEC)`
            meb_header = `${meb_header};YEARLY COOLING PEAK LOAD;YEARLY HEATING PEAK LOAD;MONTHLY COOLING PEAK LOAD (JAN);MONTHLY COOLING PEAK LOAD (FEB);MONTHLY COOLING PEAK LOAD (MAR);MONTHLY COOLING PEAK LOAD (APR);MONTHLY COOLING PEAK LOAD (MAY);MONTHLY COOLING PEAK LOAD (JUN);MONTHLY COOLING PEAK LOAD (JUL);MONTHLY COOLING PEAK LOAD (AUG);MONTHLY COOLING PEAK LOAD (SEPT);MONTHLY COOLING PEAK LOAD (OCT);MONTHLY COOLING PEAK LOAD (NOV);MONTHLY COOLING PEAK LOAD (DEC);MONTHLY HEATING PEAK LOAD (JAN);MONTHLY HEATING PEAK LOAD (FEB);MONTHLY HEATING PEAK LOAD (MAR);MONTHLY HEATING PEAK LOAD (APR);MONTHLY HEATING PEAK LOAD (MAY);MONTHLY HEATING PEAK LOAD (JUN);MONTHLY HEATING PEAK LOAD (JUL);MONTHLY HEATING PEAK LOAD (AUG);MONTHLY HEATING PEAK LOAD (SEPT);MONTHLY HEATING PEAK LOAD (OCT);MONTHLY HEATING PEAK LOAD (NOV);MONTHLY HEATING PEAK LOAD (DEC)`
            meb_header = `${meb_header};YEARLY LIGHTING PEAK LOAD;MONTHLY LIGHTING PEAK LOAD(JAN);MONTHLY LIGHTING PEAK LOAD(FEB);MONTHLY LIGHTING PEAK LOAD(MAR);MONTHLY LIGHTING PEAK LOAD(APR);MONTHLY LIGHTING PEAK LOAD(MAY);MONTHLY LIGHTING PEAK LOAD(JUN);MONTHLY LIGHTING PEAK LOAD(JUL);MONTHLY LIGHTING PEAK LOAD(AUG);MONTHLY LIGHTING PEAK LOAD(SEPT);MONTHLY LIGHTING PEAK LOAD(OCT);MONTHLY LIGHTING PEAK LOAD(NOV);MONTHLY LIGHTING PEAK LOAD(DEC)`
            meb_header = `${meb_header};YEARLY APPLIANCES PEAK LOAD;MONTHLY APPLIANCES PEAK LOAD(JAN);MONTHLY APPLIANCES PEAK LOAD(FEB);MONTHLY APPLIANCES PEAK LOAD(MAR);MONTHLY APPLIANCES PEAK LOAD(APR);MONTHLY APPLIANCES PEAK LOAD(MAY);MONTHLY APPLIANCES PEAK LOAD(JUN);MONTHLY APPLIANCES PEAK LOAD(JUL);MONTHLY APPLIANCES PEAK LOAD(AUG);MONTHLY APPLIANCES PEAK LOAD(SEPT);MONTHLY APPLIANCES PEAK LOAD(OCT);MONTHLY APPLIANCES PEAK LOAD(NOV);MONTHLY APPLIANCES PEAK LOAD(DEC)`
            meb_header = `${meb_header};YEARLY LIGHTING ELECTRICAL DEMAND;MONTHLY LIGHTING ELECTRICAL DEMAND(JAN);MONTHLY LIGHTING ELECTRICAL DEMAND(FEB);MONTHLY LIGHTING ELECTRICAL DEMAND(MAR);MONTHLY LIGHTING ELECTRICAL DEMAND(APR);MONTHLY LIGHTING ELECTRICAL DEMAND(MAY);MONTHLY LIGHTING ELECTRICAL DEMAND(JUN);MONTHLY LIGHTING ELECTRICAL DEMAND(JUL);MONTHLY LIGHTING ELECTRICAL DEMAND(AUG);MONTHLY LIGHTING ELECTRICAL DEMAND(SEPT);MONTHLY LIGHTING ELECTRICAL DEMAND(OCT);MONTHLY LIGHTING ELECTRICAL DEMAND(NOV);MONTHLY LIGHTING ELECTRICAL DEMAND(DEC)`
            meb_header = `${meb_header};YEARLY APPLIANCES ELECTRICAL DEMAND;MONTHLY APPLIANCES ELECTRICAL DEMAND(JAN);MONTHLY APPLIANCES ELECTRICAL DEMAND(FEB);MONTHLY APPLIANCES ELECTRICAL DEMAND(MAR);MONTHLY APPLIANCES ELECTRICAL DEMAND(APR);MONTHLY APPLIANCES ELECTRICAL DEMAND(MAY);MONTHLY APPLIANCES ELECTRICAL DEMAND(JUN);MONTHLY APPLIANCES ELECTRICAL DEMAND(JUL);MONTHLY APPLIANCES ELECTRICAL DEMAND(AUG);MONTHLY APPLIANCES ELECTRICAL DEMAND(SEPT);MONTHLY APPLIANCES ELECTRICAL DEMAND(OCT);MONTHLY APPLIANCES ELECTRICAL DEMAND(NOV);MONTHLY APPLIANCES ELECTRICAL DEMAND(DEC)`
            meb_header = `${meb_header};YEARLY DOMESTIC HOT WATER HEAT DEMAND;MONTHLY DOMESTIC HOT WATER HEAT DEMAND(JAN);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(FEB);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(MAR);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(APR);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(MAY);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(JUN);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(JUL);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(AUG);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(SEPT);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(OCT);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(NOV);MONTHLY DOMESTIC HOT WATER HEAT DEMAND(DEC)`

            let meb_lines = []
            for (var building in results.results) {
                console.log(building)
                let meb = `${building}`
                let values = results.results[building]
                meb = `${meb};${values.total_heating_area};${values.year_of_construction};${values.function}`
                values.yearly_cooling_demand.forEach(element => meb = `${meb};${element}`)
                values.yearly_heating_demand.forEach(element => meb = `${meb};${element}`)
                values.monthly_cooling_demand.forEach(element => meb = `${meb};${element}`)
                values.monthly_heating_demand.forEach(element => meb = `${meb};${element}`)
                values.yearly_cooling_peak_load.forEach(element => meb = `${meb};${element}`)
                values.yearly_heating_peak_load.forEach(element => meb = `${meb};${element}`)
                values.monthly_cooling_peak_load.forEach(element => meb = `${meb};${element}`)
                values.monthly_heating_peak_load.forEach(element => meb = `${meb};${element}`)
                values.yearly_lighting_peak_load.forEach(element => meb = `${meb};${element}`)
                values.monthly_lighting_peak_load.forEach(element => meb = `${meb};${element}`)
                values.yearly_appliances_peak_load.forEach(element => meb = `${meb};${element}`)
                values.monthly_appliances_peak_load.forEach(element => meb = `${meb};${element}`)
                values.yearly_lighting_electrical_demand.forEach(element => meb = `${meb};${element}`)
                values.monthly_lighting_electrical_demand.forEach(element => meb = `${meb};${element}`)
                values.yearly_appliances_electrical_demand.forEach(element => meb = `${meb};${element}`)
                values.monthly_appliances_electrical_demand.forEach(element => meb = `${meb};${element}`)
                values.yearly_domestic_hot_water_heat_demand.forEach(element => meb = `${meb};${element}`)
                values.monthly_domestic_hot_water_heat_demand.forEach(element => meb = `${meb};${element}`)
                console.log(values)
                meb_lines.push(meb)
            }
            require('fs').writeFile(
                `${tmp_path}/insel_meb.csv`,
                `${meb_header}\n${meb_lines.join('\n')}`,
                function (err) { console.log(err ? err : 'meb saved') }
            )
            BrowserWindow.fromId(1).webContents.send('task-completed', `<a href="${tmp_path}/insel_meb.csv">meb</a>`)
            return
        }
        else if  (response.status == 400) {
            console.log('invalid request')
            error = `<h3>${application} failed</h3><br />Most likely, there is an issue with either your geometry file, your parameters or both`
        }
        else if  (response.status == 500) {
            console.log('API Error')
            error = `<h3>${application} failed</h3><br />There is an error in the API side.`
        }
        BrowserWindow.fromId(1).webContents.send('task-completed', error)
        results = await response.json()
        console.log(results)
    }
    else {
        console.log(response)
        console.log(JSON.stringify(response))
        console.log('unautorized session start')
    }
}