import time
from dataclasses import dataclass
from datetime import datetime
from decimal import Decimal, InvalidOperation


DATA_KEYS = [
    "ts",
    "wellid",
    "stknum",
    "recid",
    "seqid",
    "actual_date",
    "actual_time",
    "actcod",
    "deptbitm",
    "deptbitv",
    "deptmeas",
    "deptvert",
    "blkpos",
    "ropa",
    "hkla",
    "hklx",
    "woba",
    "wobx",
    "torqa",
    "torqx",
    "rpma",
    "sppa",
    "chkp",
    "spm1",
    "spm2",
    "spm3",
    "tvolact",
    "tvolcact",
    "mfop",
    "mfoa",
    "mfia",
    "mdoa",
    "mdia",
    "mtoa",
    "mtia",
    "mcoa",
    "mcia",
    "stkc",
    "lagstks",
    "deptretm",
    "gasa",
    "space1",
    "space2",
    "space3",
    "space4",
    "space5",
]

DATA_KEY_ALIASES = {
    "actual_date": ("actual_date", "actualDate"),
    "actual_time": ("actual_time", "actualTime"),
    "wellid": ("wellid", "wellId"),
}

META_KEY_ALIASES = {
    "equipment_code": ("equipment_code", "equipmentCode"),
    "equipment_sn": ("equipment_sn", "equipmentSN"),
}


@dataclass(frozen=True)
class DrillingRealtimeData:
    ts: int
    wellid: str
    stknum: int
    recid: int
    seqid: int
    actual_date: int
    actual_time: int
    actcod: int
    deptbitm: float
    deptbitv: float
    deptmeas: float
    deptvert: float
    blkpos: float
    ropa: float
    hkla: float
    hklx: float
    woba: float
    wobx: float
    torqa: float
    torqx: float
    rpma: int
    sppa: float
    chkp: float
    spm1: int
    spm2: int
    spm3: int
    tvolact: float
    tvolcact: float
    mfop: int
    mfoa: float
    mfia: float
    mdoa: float
    mdia: float
    mtoa: float
    mtia: float
    mcoa: float
    mcia: float
    stkc: int
    lagstks: int
    deptretm: float
    gasa: float
    space1: float
    space2: float
    space3: float
    space4: float
    space5: float

    @classmethod
    def empty(cls, wellid=""):
        now = datetime.utcnow()
        return cls(
            ts=int(time.time() * 1000),
            wellid=wellid,
            stknum=0,
            recid=0,
            seqid=0,
            actual_date=int(now.strftime("%Y%m%d")),
            actual_time=int(now.strftime("%H%M%S")),
            actcod=0,
            deptbitm=0.0,
            deptbitv=0.0,
            deptmeas=0.0,
            deptvert=0.0,
            blkpos=0.0,
            ropa=0.0,
            hkla=0.0,
            hklx=0.0,
            woba=0.0,
            wobx=0.0,
            torqa=0.0,
            torqx=0.0,
            rpma=0,
            sppa=0.0,
            chkp=0.0,
            spm1=0,
            spm2=0,
            spm3=0,
            tvolact=0.0,
            tvolcact=0.0,
            mfop=0,
            mfoa=0.0,
            mfia=0.0,
            mdoa=0.0,
            mdia=0.0,
            mtoa=0.0,
            mtia=0.0,
            mcoa=0.0,
            mcia=0.0,
            stkc=0,
            lagstks=0,
            deptretm=0.0,
            gasa=0.0,
            space1=0.0,
            space2=0.0,
            space3=0.0,
            space4=0.0,
            space5=0.0,
        )

    @classmethod
    def from_payload(cls, payload):
        meta = get_dict_alias(payload, "meta", "mate")
        data = payload.get("data") if isinstance(payload, dict) and isinstance(payload.get("data"), dict) else {}
        values = {key: get_alias_value(data, DATA_KEY_ALIASES.get(key, (key,)), 0) for key in DATA_KEYS}
        values["ts"] = parse_int_value(
            get_alias_value(data, ("ts", "record_time", "recordTime"), int(time.time() * 1000)),
            int(time.time() * 1000),
        )
        values["actual_date"] = parse_int_value(get_alias_value(data, DATA_KEY_ALIASES["actual_date"], 0))
        values["actual_time"] = parse_int_value(get_alias_value(data, DATA_KEY_ALIASES["actual_time"], 0))
        values["wellid"] = (
            get_alias_value(data, DATA_KEY_ALIASES["wellid"], "")
            or get_alias_value(meta, META_KEY_ALIASES["equipment_code"], "")
            or get_alias_value(meta, META_KEY_ALIASES["equipment_sn"], "")
            or ""
        )
        return cls(**values)

    def to_payload(self, equipment_code):
        return {
            "meta": {
                "equipment_code": equipment_code,
                "equipment_sn": equipment_code,
            },
            "data": {
                key: getattr(self, key)
                for key in DATA_KEYS
            },
        }


def parse_int_value(value, default=0):
    try:
        if value is None or value == "":
            return default
        return int(Decimal(str(value).strip()))
    except (InvalidOperation, TypeError, ValueError):
        return default


def get_alias_value(source, keys, default=None):
    if not isinstance(source, dict):
        return default
    for key in keys:
        value = source.get(key)
        if value is not None:
            return value
    return default


def get_dict_alias(source, *keys):
    value = get_alias_value(source, keys, {})
    return value if isinstance(value, dict) else {}