from __future__ import annotations

from typing import Any

from dashboard_data.card_utils import average, safe_number


DEFAULT_IDEAL_SENSOR_PROFILE = {
    "temperature": {"ideal": 24.0, "min": 18.0, "max": 30.0},
    "moisture": {"ideal": 65.0, "min": 45.0, "max": 80.0},
    "ph": {"ideal": 6.5, "min": 6.0, "max": 7.2},
    "ec": {"ideal": 1.4, "min": 1.0, "max": 2.0},
    "humidity": {"ideal": 60.0, "min": 45.0, "max": 75.0},
}

METRIC_ORDER = [
    ("temperature", "دما"),
    ("moisture", "رطوبت"),
    ("ph", "pH"),
    ("ec", "هدایت الکتریکی"),
    ("humidity", "رطوبت هوا"),
]


def _normalize_to_ideal_score(value: float | None, minimum: float, ideal: float, maximum: float) -> int:
    if value is None or maximum <= minimum:
        return 0
    if value <= minimum or value >= maximum:
        return 0
    if value == ideal:
        return 100
    if value < ideal:
        span = ideal - minimum
        if span <= 0:
            return 0
        return round(max(0.0, min(1.0, (value - minimum) / span)) * 100)
    span = maximum - ideal
    if span <= 0:
        return 0
    return round(max(0.0, min(1.0, (maximum - value) / span)) * 100)


def _resolve_profile(context: dict[str, Any]) -> tuple[dict[str, dict[str, float]], str]:
    location = context.get("location")
    if location is not None:
        location_profile = getattr(location, "ideal_sensor_profile", None) or {}
        if location_profile:
            merged = {
                metric: {**DEFAULT_IDEAL_SENSOR_PROFILE.get(metric, {}), **location_profile.get(metric, {})}
                for metric in set(DEFAULT_IDEAL_SENSOR_PROFILE) | set(location_profile)
            }
            return merged, "location"

    plants = context.get("plants", [])
    for plant in plants:
        plant_profile = getattr(plant, "health_profile", None) or {}
        if plant_profile:
            translated: dict[str, dict[str, float]] = {}
            for metric in DEFAULT_IDEAL_SENSOR_PROFILE:
                metric_data = plant_profile.get(metric)
                if not metric_data:
                    continue
                translated[metric] = {
                    "ideal": float(metric_data.get("ideal_value", DEFAULT_IDEAL_SENSOR_PROFILE[metric]["ideal"])),
                    "min": float(metric_data.get("min_range", DEFAULT_IDEAL_SENSOR_PROFILE[metric]["min"])),
                    "max": float(metric_data.get("max_range", DEFAULT_IDEAL_SENSOR_PROFILE[metric]["max"])),
                }
            merged = {
                metric: {**DEFAULT_IDEAL_SENSOR_PROFILE.get(metric, {}), **translated.get(metric, {})}
                for metric in DEFAULT_IDEAL_SENSOR_PROFILE
            }
            return merged, f"plant:{getattr(plant, 'name', 'unknown')}"

    return DEFAULT_IDEAL_SENSOR_PROFILE, "default"


def _current_metric_values(sensor: Any, forecasts: list[Any]) -> dict[str, float]:
    current_forecast = forecasts[0] if forecasts else None
    humidity = average(
        [getattr(forecast, "humidity_mean", None) for forecast in forecasts[:3]],
        default=safe_number(getattr(current_forecast, "humidity_mean", None), 0),
    )
    return {
        "temperature": float(safe_number(getattr(sensor, "soil_temperature", None), 0)),
        "moisture": float(safe_number(getattr(sensor, "soil_moisture", None), 0)),
        "ph": float(safe_number(getattr(sensor, "soil_ph", None), 0)),
        "ec": float(safe_number(getattr(sensor, "electrical_conductivity", None), 0)),
        "humidity": float(safe_number(humidity, 0)),
    }


def build_sensor_radar_chart(sensor_id: str, context: dict | None = None, ai_bundle: dict | None = None) -> dict:
    context = context or {}
    sensor = context.get("sensor")
    forecasts = context.get("forecasts", [])
    if sensor is None:
        return {"labels": [], "series": [], "profileSource": None, "profile": {}}

    profile, profile_source = _resolve_profile(context)
    current_values = _current_metric_values(sensor, forecasts)

    labels: list[str] = []
    current_series: list[int] = []
    ideal_series: list[int] = []
    metric_details: list[dict[str, Any]] = []

    for metric_key, label in METRIC_ORDER:
        metric_profile = profile.get(metric_key, DEFAULT_IDEAL_SENSOR_PROFILE.get(metric_key, {}))
        minimum = float(metric_profile.get("min", DEFAULT_IDEAL_SENSOR_PROFILE[metric_key]["min"]))
        ideal = float(metric_profile.get("ideal", DEFAULT_IDEAL_SENSOR_PROFILE[metric_key]["ideal"]))
        maximum = float(metric_profile.get("max", DEFAULT_IDEAL_SENSOR_PROFILE[metric_key]["max"]))
        current_value = current_values.get(metric_key)

        labels.append(label)
        current_score = _normalize_to_ideal_score(current_value, minimum, ideal, maximum)
        current_series.append(current_score)
        ideal_series.append(100)
        metric_details.append(
            {
                "metricType": metric_key,
                "label": label,
                "currentValue": round(current_value, 2) if current_value is not None else None,
                "idealValue": round(ideal, 2),
                "minRange": round(minimum, 2),
                "maxRange": round(maximum, 2),
                "currentScore": current_score,
                "idealScore": 100,
            }
        )

    return {
        "labels": labels,
        "profileSource": profile_source,
        "profile": profile,
        "metricDetails": metric_details,
        "series": [
            {"name": "امروز", "data": current_series},
            {"name": "پروفایل ایده‌آل", "data": ideal_series},
        ],
    }