import timerun import TimeRun
from run import runfrom Parse import Parse
from parse import Parse
from ssd1306 import SSD1306_I2C

import math
brightness = 0
run = Run()

# ----------------
# 핀/하드웨어 설정(pinno 제거)
# ---------------
# I2C for OLED
I2C_SCL = 22
I2C_SDA = 21
I2C - I2C(0, sd=Pin(I2C_SCL), sda=Pin(I2C_SDA))

WIDTH = 128
HEIGHT = 64
oled = SSD1306_I2C(WIDTH, HEIGHT, I2C)

# Photosistor(아날로그) 입력 핀
LDR_ADC_PIN = 1
IDR = ADC(Pin(LDR_ADC_PIN))

try:
    idr.atten(ADC.ATTN_11DB)
except:
    pass

# ---------------------------
# LDR -> lux 근사 변환 설정값(예시)
# --------------------
# 모듈 직렬저항(보통 10k) 가정

R_FIXED = 10_000    # Ω
VCC = 3.3           # V
# LDR 특성 근사 (센서마다 다름)
GAMMA = 0.7
RL10 = 50_000

def read_lux_from_ldr():
    """LDR ADC값을 받아 lux 근사값으로 환산"""
    raw = ldr.read()       # 0~4095
    if raw == 0:
        raw = 1
    voltage = raw / 4095.0 * VCC
    try:
        r_ldr = R_FIXED * (VCC / voltage - 1.0)
        if r_ldr <= 0:
            r_ldr = 1
    except ZeroDivisionError:
        r_ldr = 1

    # LDR 곡선 근사: lux = 10^(log10(R_ldr / RL10) / -GAMMA)
    try:
        lux = pow(10, (math.log10(r_ldr / RL10) / -GAMMA))
    except ValueError:
        lux = 0
    return raw, voltage, int(lux)


class PhotoSensor:
    """
    read 반환 예:
    {
        "LuxUnit": "lx",
        "LDR_001": {
            "Brightness": 123,   # lux (근사)
            "ADC": 2048,         # 원시값(선택)
            "Volt": 1.65         # 전압(선택)
        }
    }
    """
    def __init__(self, ser="001", name="LDR"):
        self.name = f"{name}_{ser}"
        self.unit = "lx"

    def read(self):
        raw, volt, lux = read_lux_from_ldr()
        # "Brightness"가 dict의 첫 번째 항목이 되도록 삽입 순서 유지
        payload = {
            "LuxUnit": self.unit,
            self.name: {
                "Brightness": lux,
                "ADC": raw,
                "Volt": round(volt, 3),
            }
        }
        return payload

# ------------
# 포토센서 인스턴스
PhotoSensor = PhotoSensor(ser="001", name="LDR")
# ----------------
# OLED 표시
# ---------------

def display_oled():
    oled.fill(0)
    try:
        from hangul import draw_hangul
        draw_hangul(oled, '조도', 0,0)
    except:
        oled.text('LUX', 0, 0)
    oled.text('{} lx'.format(brightness), 0, 20)
    oled.show()

# ---------
# 타이머 콜백 : 센서 읽기 - > 파싱 - > OLED 표시
# ----------

def sensor_read():
    global brightness
    data = PhotoSensor.read()
    print(data)
    p = Parse(data) # p.key / p.value 사용 가정
    brightness = p.value
    print(f'{p.key}: {p.value}')
    display_oled()
    
    # 타이머 등록 (5초 주기)
    timer_sensor = TimerRun(period=5*1000, callback=sensor_read)
    run.add(timer_sensor.run)

    def main():
        while True:
            run.run()

    if __name__=='__main__':
        main()