This gets date from shelly 3 phase em and pushs to Charge HQ using the Push API, I have solar/battery on phase C which Im attempting to extrapulate the discharge

charge hq - shelly PRO 3 em

let url = "https://api.chargehq.net/api/public/push-solar-data";
let apiKey = "apikey";


function sendToChargeHQ() {
    let emStatus = Shelly.getComponentStatus("em:0", 0);

    console.log("A:",emStatus.a_act_power)
    console.log("A aprt:",emStatus.a_aprt_power)
    console.log("B:",emStatus.b_act_power)
    console.log("B aprt:",emStatus.b_aprt_power)
    console.log("C:",emStatus.c_act_power)
    console.log("C aprt:",emStatus.c_aprt_power)
    let a = emStatus.a_act_power;
    let b = emStatus.b_act_power;
    let c = emStatus.c_act_power;
    
    //battery_discharge_kw = (emStatus.c_aprt_power * emStatus.c_pf) / 1000;
    //console.log("battery power", battery_discharge_kw);
    let phasePowers = [a, b, c];
    
    // Consumption: total power being used (always positive, even if some phases export)
    let consumption_kw = (Math.max(a, 0) + Math.max(b, 0) + Math.max(c, 0)) / 1000;
    
    // Net import: only positive sum of all phases (if net is positive)
    let totalActPower = a + b + c;
    let net_import_kw = totalActPower > 0 ? totalActPower / 1000 : 0;
    
    // Production: stays 0
    let production_kw = 0;
    
    // Exported: sum of all negative powers
    let exported_kw = (Math.min(a, 0) + Math.min(b, 0) + Math.min(c, 0)) / 1000 * -1;  // make positive
    
    // Imported: sum of all positive powers
    let imported_kw = (Math.max(a, 0) + Math.max(b, 0) + Math.max(c, 0)) / 1000;
    
    let payload = {
        "apiKey": apiKey,
        "siteMeters": {
            "consumption_kw": consumption_kw,
            "net_import_kw": net_import_kw,
            "production_kw": 0,
            "exported_kwh": exported_kw,
            "imported_kwh": imported_kw,
            //"battery_discharge_kw": battery_discharge_kw
        }
    };
    //print(payload)
    let payloadString = JSON.stringify(payload);
    Shelly.call(
      "http.post",
      {
        url: url,
        body: payloadString,
        headers: {
          "Content-Type": "application/json"
        },
      },
      function(resp) {
        //print("Webhook response: ", resp);
      }
    );


    
 
}

Timer.set(60000, true, sendToChargeHQ);