import json
import asyncio
import aiohttp
import sys
import logging
import math
from dataclasses import dataclass
_LOGGER = logging.getLogger(__name__)

@dataclass
class ChargerData:
    p_l1ev:float = 0
    p_l2ev:float = 0
    p_l3ev:float = 0
    Iset_ev:float = 0
    Phase_set_ev:int = 0
    AllowCharging_ev:bool = False
    mode:str = ""
    connected:bool = False
    eto:int = 0             # Gesamtzaehlerstand der Wallbox in Wh


async def gatherNeededStatus() -> ChargerData:
    ret = ChargerData
    #print("get charger status...");
    timeout = aiohttp.ClientTimeout(total=3)
    try:
        async with aiohttp.ClientSession() as session:
            async with session.get('http://192.168.179.122/api/status?filter=psm,fup,amp,frc,nrg,lmo,car,pgrid,pakku,ppv,eto',timeout=timeout) as response: #?filter=psm,fup,amp,frc,nrg,lmo,car
                if response.status == 200:
                    html = await response.text()
                    #logging.warning(html)
                    state = json.loads(html)
                    # Gesamtzaehler der Wallbox in Wh. Genauer als die Summe
                    # ueber die Fuenf-Minuten-Leistungswerte: die Differenz
                    # zweier Staende trifft den Ladevorgang auf die
                    # Wattstunde, waehrend eine Summe aus Mittelwerten an den
                    # Raendern immer danebenliegt.
                    ret.eto = int(state.get("eto",0) or 0)
                    ret.p_l1ev = state["nrg"][7]/1000.0
                    ret.p_l2ev = state["nrg"][8]/1000.0
                    ret.p_l3ev = state["nrg"][9]/1000.0
                    ret.Iset_ev = state["amp"]
                    ret.Phase_set_ev = state["psm"]
                    ret.AllowCharging_ev = state["frc"]
                    if state["car"] == 2 or state["car"] == 4:
                        ret.connected = True
                    else:
                        ret.connected = False
                    if state["fup"] == True and state["lmo"] == 4:
                        ret.mode = "Eco"
                    elif state["fup"] == True and state["lmo"] == 5:
                    	ret.mode = "Next Trip"
                    else:
                        ret.mode = "Default"
                    
    except:
        return ret
    #print("Body:", html)
    return ret

async def setPVparameters(pGrid:int,pPv:int,pAkku:int):
    timeout = aiohttp.ClientTimeout(total=3)
    #logging.warning('{"pGrid":'+str(round(pGrid))+',"pAkku":'+str(round(pAkku))+',"pPv":'+str(round(pPv))+'}')
    #_LOGGER.error('{"pGrid":'+str(round(pGrid))+',"pAkku":'+str(round(pAkku))+',"pPv":'+str(round(pPv))+'}')
    try:
        async with aiohttp.ClientSession() as session:
            async with session.get('http://192.168.179.122/api/set?ids={"pGrid":'+str(round(pGrid))+',"pAkku":'+str(round(pAkku))+',"pPv":'+str(round(pPv))+'}',timeout=timeout) as response:
                if response.status != 200:
                    #_LOGGER.error('goE Return: %s' % await response.text())
                    return False
                #else:
                #    _LOGGER.error('goE Return: %s' % await response.text())
    except Exception as error:
    	_LOGGER.error(f"Error during sending GoE Parameters: %s",error)
    	return False


async def setChargePower(power:int, currPhases:int, currAmp:int, currCharging:bool):
    timeout = aiohttp.ClientTimeout(total=3)
  
    if(power < 3700):
        phases = 1
        amp = math.floor(power/240)
    elif(power > 4500):
        phases = 2
        amp = math.floor((power/3)/240)
    else:
        amp = 16

    if(amp < 6):
        amp = 0
    elif(amp > 16):
        amp = 16
    if(phases != currPhases):
        logging.warning("Change phases: "+str(phases))
        #async with aiohttp.ClientSession() as session:
        #    async with session.get('http://192.168.178.64/api/?psm='+phases,timeout=timeout) as response:
        #        if response.status != 200:
        #            return False
    if(amp != currAmp and amp):
        logging.warning("Change amp: "+str(amp))
        if(currCharging == False):
            logging.warning("start charging")
        #async with aiohttp.ClientSession() as session:
        #    async with session.get('http://192.168.178.64/api/set?amp='+amp,timeout=timeout) as response:
        #        if response.status != 200:
        #            return False
    elif(currCharging):
        logging.warning("stop charging")
        #async with aiohttp.ClientSession() as session:
        #    async with session.get('http://192.168.178.64/api/set?frc=1',timeout=timeout) as response:
        #        if response.status != 200:
        #            return False

    #status = charger.get_status(status_type=goecharger_api_lite.GoeCharger.STATUS_FULL)
    #print(json.dumps(status, indent=4))

    #adjust amps
#curl "http://1.2.3.4/api/set?amp=16"
#current energy: nrg energy array, U (L1, L2, L3, N), I (L1, L2, L3), P (L1, L2, L3, N, Total), pf (L1, L2, L3, N)
#set 1-phase
#curl "http://1.2.3.4/api/set?psm=1"

#set 3-phase
#curl "http://1.2.3.4/api/set?psm=2"

#start charging
#curl "http://1.2.3.4/api/set?frc=0"

#stop charging
#curl "http://1.2.3.4/api/set?frc=1"