#:########################################################################################:#
# TITLE: LOUNGE BOOKSHELF LEDS
# zorruno.com layout v1.1 2026
#:########################################################################################:#
# REPO:
# https://home.fox.co.nz/gitea/zorruno/zorruno-homeassistant/src/branch/master/esphome/esp-loungebookshelfleds.yaml
#:########################################################################################:#
# VERSIONS:
# V2.1 2026-03-11 Updated yaml to zorruno layout V1.1
# V2.0 2025-09-15 A bunch of fixes and made it more standard across my devices
# V1.0 2025-08-17 First setup (and replacement of Tasmota)
#:########################################################################################:#
# HARDWARE:
# - Magichome LED controller single channel (ESP8266, NOT the later ones with BL602)
# - Reference:
#   https://devices.esphome.io/devices/MagicHome-ZJ-WFMN-C-Single-Color
# - Device GPIO (Magichome ESP8266):
#   - GPIO2  Blue LED (used for ESPHome status)
#   - GPIO12 MOSFET output (0 V when switched)
#:########################################################################################:#
# OPERATION NOTES:
# - General-purpose LED controller.
# - Designed for the Sinilink XY-WFMS board with a MOSFET output (claimed 5A, 5-36 V DC),
#   but will suit similar MOSFET boards.
# - In SUBSTITUTIONS there is a maximum output setting to extend LED life.
# - In SUBSTITUTIONS there is a minimum output setting; switches fully OFF at/below the minimum
#   to avoid low-PWM flicker.
# - PWM frequency is set to 1 kHz by default. You can increase it, but higher values caused
#   resets on the Sinilink device. On ESP32 you can run much higher.
# - Min/max output settings are not exposed in Home Assistant/MQTT by default, but could be.
# - Packages include common items: network settings, diagnostic entities, MQTT, and optional SNTP.
# - Default restart behaviours:
#   - Fade up to full
#   - Restore Brightness
#   - Remain Off
# - The green LED flashes while fading (different patterns for up/down). The red LED follows the
#   output (it shares the MOSFET GPIO). This depends on hardware.
# - Fade timing scales with configured values proportionally when starting mid-brightness.
# - Exposed in Home Assistant/MQTT:
#   - Startup action (On, Off, Restore)
#   - Fade Up / Fade Down / Fade Stop buttons
#   - Fade Up/Down toggle switch
#   - Normal On/Off switch using quick ramp up/down
#   - Fade up/down times (0-60 s)
#   - Output % (pre-gamma) and PWM % (post-gamma)
#   - Output Set (1-100, respects min/max)
#   - Many device diagnostics from the included diagnostics package
#   - Maximum ON time before automatic fade-down (1-48 h, 0 = no limit)
#
# MQTT COMMANDS:
# - ${mqtt_local_command_topic}/light/set = ON
# - ${mqtt_local_command_topic}/light/set = OFF
# - State publishes to:
#   - ${mqtt_local_status_topic}/light/state
#:########################################################################################:#
# OFFLINE NOTES:
# a) Home Assistant offline (network and MQTT online):
#    - LED control continues locally on the device
#    - Direct local MQTT commands still work if the broker is available
#    - Stored brightness/ramp settings and restart behaviour continue to work
#
# b) MQTT offline (or HA/MQTT offline):
#    - LED control continues locally on the device
#    - Physical button control and local ramp logic continue to work
#    - No MQTT control/state publishing available
#
# c) Entire WiFi/Network offline:
#    - LED control continues locally on the device
#    - Physical button control and local ramp logic continue to work
#    - Accurate time is not needed; SNTP is not required for operation
#:########################################################################################:#

#:########################################################################################:#
# SUBSTITUTIONS:
# Specific device variable substitutions
# If NOT using a secrets file, just replace these with the passwords etc (in quotes)
#:########################################################################################:#
substitutions:
  # Device Naming
  device_name: "esp-loungebookshelfleds" # yaml file should be device_name.yaml
  friendly_name: "Lounge Bookshelf LEDs"
  description_comment: "LED Strip around the bookshelf in the upstairs lounge :: Magichome ESP8266 (Layout V1.1)"
  device_area: "Lounge" # Allows the ESP device to be automatically linked to an 'Area' in Home Assistant.

  # Project Naming
  project_name: "Magichome Single Colour V1.1 LED Controller.Generic ESP8266" # Project details. Manufacturer before the dot, device after the dot.
  project_version: "v2.1"  # Project version denotes release of the YAML file, allowing checking of deployed vs latest version

  # Passwords & Secrets (Unfortunately, you can't use substitutions inside secret names)
  api_key: !secret esp-api_key # If using HA API
  ota_pass: !secret esp-ota_pass # If passwording OTA updates
  static_ip_address: !secret esp-loungebookshelfleds_ip # CHANGE THIS
  current_ip_address: ${static_ip_address}

  # MQTT LOCAL Controls (This is just my local method of controlling via MQTT, I also use the built in method)
  mqtt_local_device_name: "lounge-bookshelfleds"
  mqtt_local_command_main_topic: !secret mqtt_command_main_topic
  mqtt_local_status_main_topic: !secret mqtt_status_main_topic
  mqtt_local_command_topic: "${mqtt_local_command_main_topic}/${mqtt_local_device_name}" # Topic we will use to command this locally without HA
  mqtt_local_status_topic: "${mqtt_local_status_main_topic}/${mqtt_local_device_name}" # Topic we will use to view status locally without HA
  mqtt_local_device_command_ON: "ON"
  mqtt_local_device_command_OFF: "OFF"

  # Device Specific Settings
  log_level: "NONE"   # Define logging level: NONE, ERROR, WARN, INFO, DEBUG (default), VERBOSE, VERY_VERBOSE
  update_interval: "20s"    # Update time for general sensors, etc.
  led_gamma: "1.2"    # Gamma from 1.2-3 is sensible to normalise the LED fading vs PWM
  minimum_led_output: "1"      # % If at this value or below, we will switch it completely off
  maximum_led_output: "90"     # % Maximum output; it is sometimes nice to limit the output for longevity or aesthetics
  max_on_default_hours: "24"     # The maximum time the LEDs will be on, in case they get left on. 0 = no automatic turn-off
  pwm_frequency: "1000"   # PWM output Frequency in Hz. High enough to avoid audible/visible artifacts

  # Device Specific GPIO (so we can easily update for other devices)
  device_status_led: GPIO2
  device_mosfet_out: GPIO12
  device_usr_button: GPIO4  # if no button, this is just a fake/safeish choice so it compiles with the generic yaml
  device_fading_led: GPIO13  # if no LED, this is just a fake/safeish choice so it compiles with the generic yaml

#:########################################################################################:#
# PACKAGES:
# Included Common Packages
# https://esphome.io/components/packages.html
#:########################################################################################:#
packages:
  #### WIFI, Network (Static/DHCP/IPV6 etc), Fallback AP, Safemode ####
  common_wifi: !include
    file: common/network_common.yaml
    vars:
      local_device_name: "${device_name}"
      local_static_ip_address: "${static_ip_address}"
      local_current_ip_address: "${current_ip_address}"
      local_ota_pass: "${ota_pass}"

  #### HOME ASSISTANT API (choose encryption or no encryption options) ####
  common_api: !include
    #file: common/api_common.yaml
    file: common/api_common_noencryption.yaml
    vars:
      local_api_key: "${api_key}"

  #### MQTT ####
  common_mqtt: !include
    file: common/mqtt_common.yaml
    vars:
      local_device_name: "${device_name}"

  #### WEB PORTAL ####
  #common_webportal: !include common/webportal_common.yaml

  #### SNTP (Only use if you want/need accurate timeclocks) ####
  #common_sntp: !include common/sntp_common.yaml

  #### DIAGNOSTICS Sensors ####
  diag_basic: !include common/include_basic_diag_sensors.yaml
  diag_more: !include common/include_more_diag_sensors.yaml
  diag_debug: !include common/include_debug_diag_sensors.yaml
  #diag_resetcount: !include common/include_resetcount_diag_sensors.yaml

#:########################################################################################:#
# ESPHOME CORE CONFIGURATION
# https://esphome.io/components/esphome.html
#:########################################################################################:#
esphome:
  name: "${device_name}"
  friendly_name: "${friendly_name}"
  comment: "${description_comment}"
  area: "${device_area}"
  on_boot:
    # Run later so everything is initialised before we touch states.
    priority: 200
    then:
      # Keep the HA dropdown in sync with the stored mode
      - lambda: |-
          switch (id(restart_mode)) {
            case 0: id(restart_action).publish_state("Fade up to full"); break;
            case 1: id(restart_action).publish_state("Restore Brightness"); break;
            case 2: default: id(restart_action).publish_state("Remain Off"); break;
          }

      # Mode 0: Fade up to full (obeys fade settings; no on/off flicker)
      - if:
          condition:
            lambda: "return id(restart_mode) == 0;"
          then:
            - lambda: "id(ramp_switch_target_on) = true;"
            - script.execute: ramp_on_script

      # Mode 1: Restore Brightness (deferred to avoid races)
      - if:
          condition:
            lambda: "return id(restart_mode) == 1;"
          then:
            - script.execute: deferred_restore_brightness

      # Mode 2: Remain Off (no blip; stays off)
      - if:
          condition:
            lambda: "return id(restart_mode) == 2;"
          then:
            - script.stop: ramp_on_script
            - script.stop: ramp_off_script
            - lambda: "id(ramp_switch_target_on) = false;"
            - light.turn_off:
                id: mosfet_leds
                transition_length: 0s

      # Boot complete: allow OFF handlers again
      - lambda: "id(booting) = false;"

      # NEW: force indicator OFF after boot logic
      # (Removed: output.turn_off: green_led_out)

# Only if you want to play with build flags...
#  platformio_options:
#    build_unflags:
#      - -flto
#    build_flags:
#      - -fno-lto
#      - -Wl,--gc-sections
#      - -ffunction-sections
#      - -fdata-sections
#      - -DNDEBUG

#:########################################################################################:#
# ESP PLATFORM AND FRAMEWORK
# https://esphome.io/components/esp8266.html
# https://esphome.io/components/esp32.html
#:########################################################################################:#
esp8266:
  board: esp01_1m
  restore_from_flash: true # restore some values on reboot

mdns:
  disabled: true # Disabling will make the build file smaller (and device is still available via static IP)

preferences:
  flash_write_interval: 2min # enough time to update values for reboots, but not enough to wear flash

#:########################################################################################:#
# GLOBAL VARIABLES
# https://esphome.io/components/globals.html
#:########################################################################################:#
globals:
  # Minimum Brightness % for LEDs (will switch off if <=)
  - id: min_brightness_pct
    type: int
    restore_value: true
    initial_value: "${minimum_led_output}"        # start/finish at X%
  # Maximum Brightness % for LEDs (should never go beyond this)
  - id: max_brightness_pct
    type: int
    restore_value: false
    initial_value: "${maximum_led_output}"        # hard cap; never exceed this
  # The maximum time the lights will stay on, in hours. Just in case they are left on. 0 = forever
  - id: max_on_hours
    type: int
    restore_value: true
    initial_value: "${max_on_default_hours}"
  # Compile time Gamma
  - id: led_gamma_f
    type: float
    restore_value: false
    initial_value: ${led_gamma}   # numeric at compile time

  # Default Fading Up Time (Selectable and will be retained)
  - id: ramp_up_ms            # fade-in when turned ON
    type: int
    restore_value: true
    initial_value: "5000"     # 5 s
  # Default Fading Down Time (Selectable and will be retained)
  - id: ramp_down_ms          # fade-out when turned OFF
    type: int
    restore_value: true
    initial_value: "10000"    # 10 s
  # Action on Restart. (0=Fade full, 1=Restore brightness, 2=Remain off)
  - id: restart_mode
    type: int
    restore_value: true
    initial_value: "0"        # default = Fade Up to Full (so can be deployed with no other setup)

  # Determine last fade direction.
  # true when you asked the light to end up ON (Ramp Up)
  # false when you asked the light to end up OFF (Ramp Down)
  - id: ramp_switch_target_on
    type: bool
    restore_value: true
    initial_value: "false"
  # Prevent jitter when adjusting the slider
  - id: suppress_slider_sync
    type: bool
    restore_value: false
    initial_value: "false"
  # actual 0..100 seen last time, for restart
  - id: last_brightness_pct
    type: float
    restore_value: true
    initial_value: "0.0"
  # last published "Output Set (0-100)" integer
  - id: last_set_pos
    type: int
    restore_value: false
    initial_value: "-1"
  # helper to keep blink time == transition time
  - id: last_ramp_ms
    type: int
    restore_value: false
    initial_value: "0"
  # target for "Restore Brightness" scripted ramp
  - id: restore_target_pct
    type: float
    restore_value: false
    initial_value: "0.0"
  # true while a scripted ramp is in progress (to limit flash writes)
  - id: is_ramping
    type: bool
    restore_value: false
    initial_value: "false"
  # guards OFF persistence during startup caused by restore_mode: ALWAYS_OFF
  - id: booting
    type: bool
    restore_value: false
    initial_value: "true"
  # true only while we are performing a ramp-down that briefly turns the light ON to hit the floor
  - id: ramping_for_off
    type: bool
    restore_value: false
    initial_value: "false"

#:########################################################################################:#
# LOGGER COMPONENT
# https://esphome.io/components/logger.html
# Logs all log messages through the serial port and through MQTT topics.
#:########################################################################################:#
logger:
  level: "${log_level}"  # INFO Level suggested, or DEBUG for testing
  baud_rate: 0 # set to 0 for no logging via UART, needed if you are using it for other serial things (eg PZEM, Serial control)

#:########################################################################################:#
# STATUS LED
# https://esphome.io/components/status_led.html
#:########################################################################################:#
status_led:
  pin:
    number: ${device_status_led}
    inverted: true

#:########################################################################################:#
# MQTT COMMANDS
# This adds device-specific MQTT command triggers to the common MQTT configuration.
#:########################################################################################:#
mqtt:
  on_message:
    # Light control to ramp up
    - topic: "${mqtt_local_command_topic}/light/set"
      payload: "${mqtt_local_device_command_ON}"
      then:
        - switch.turn_on: mosfet_ramp_switch
    # Light control to ramp down
    - topic: "${mqtt_local_command_topic}/light/set"
      payload: "${mqtt_local_device_command_OFF}"
      then:
        - switch.turn_off: mosfet_ramp_switch

#:########################################################################################:#
# SWITCH COMPONENT
# https://esphome.io/components/switch/
#:########################################################################################:#
switch:
  # Ramp-aware ON/OFF for HA (asymmetric, eased; no bounce)
  - platform: template
    id: mosfet_ramp_switch
    name: "${friendly_name} Fade Up-Down"
    icon: mdi:led-strip-variant
    lambda: |-
      return id(ramp_switch_target_on);
    turn_on_action:
      - lambda: |-
          id(ramp_switch_target_on) = true;
      - script.stop: ramp_off_script
      - script.execute: ramp_on_script
    turn_off_action:
      - lambda: |-
          id(ramp_switch_target_on) = false;
      - script.stop: ramp_on_script
      - script.execute: ramp_off_script

#:########################################################################################:#
# BUTTON COMPONENT
# https://esphome.io/components/button/index.html
#:########################################################################################:#
button:
  # Start ramping UP (from current level)
  - platform: template
    id: fade_up_button
    name: "${friendly_name} Fade Up"
    icon: mdi:arrow-up-bold
    on_press:
      - lambda: |-
          id(ramp_switch_target_on) = true;
          id(mosfet_ramp_switch).publish_state(true);   // reflect in HA immediately
      - script.stop: ramp_off_script
      - script.execute: ramp_on_script

  # Start ramping DOWN (from current level)
  - platform: template
    id: fade_down_button
    name: "${friendly_name} Fade Down"
    icon: mdi:arrow-down-bold
    on_press:
      - lambda: |-
          id(ramp_switch_target_on) = false;
          id(mosfet_ramp_switch).publish_state(false);  // reflect in HA immediately
      - script.stop: ramp_on_script
      - script.execute: ramp_off_script

  # STOP any ramping (hold current brightness)
  - platform: template
    id: fade_stop_button
    name: "${friendly_name} Fade Stop"
    icon: mdi:pause
    on_press:
      # Stop any pending scripts (and their delayed actions)
      - script.stop: ramp_on_script
      - script.stop: ramp_off_script
      - lambda: |-
          // We are no longer ramping (up or down)
          id(ramping_for_off) = false;
          id(is_ramping) = false;

          // Freeze the light at its current level by overwriting the transition
          const auto &cv = id(mosfet_leds).current_values;
          if (cv.is_on()) {
            auto call = id(mosfet_leds).make_call();
            call.set_state(true);
            call.set_brightness(cv.get_brightness());
            call.set_transition_length(0);
            call.perform();
          }

          // Persist the exact frozen level so restore survives a reboot
          if (cv.is_on()) {
            float pct = cv.get_brightness() * 100.0f;
            id(last_brightness_pct) = pct;
          }

#:########################################################################################:#
# SELECT COMPONENT
# https://esphome.io/components/select/index.html
#:########################################################################################:#
select:
  - platform: template
    id: restart_action
    name: "${friendly_name} Restart Action"
    icon: mdi:restart
    optimistic: true
    options:
      - "Fade up to full"
      - "Restore Brightness"
      - "Remain Off"
    initial_option: "Restore Brightness"
    set_action:
      - lambda: |-
          if (x == "Fade up to full") {
            id(restart_mode) = 0;
          } else if (x == "Restore Brightness") {
            id(restart_mode) = 1;
          } else {
            id(restart_mode) = 2;
          }

#:########################################################################################:#
# BINARY SENSORS
# https://esphome.io/components/binary_sensor/
#:########################################################################################:#
binary_sensor:
  - platform: gpio
    id: btn_gpio12
    name: "${friendly_name} Button"
    pin:
      number: ${device_usr_button}
      mode:
        input: true
        pullup: true
      inverted: true
    filters:
      - delayed_on: 30ms
      - delayed_off: 30ms
    on_press:
      - if:
          condition:
            lambda: "return id(ramp_switch_target_on);"
          then:
            # Target is currently ON -> press should go OFF (start ramp-down)
            - lambda: |-
                id(ramp_switch_target_on) = false;
                id(mosfet_ramp_switch).publish_state(false);  // reflect in HA immediately
            - script.stop: ramp_on_script
            - script.execute: ramp_off_script
          else:
            # Target is currently OFF -> press should go ON (start ramp-up)
            - lambda: |-
                id(ramp_switch_target_on) = true;
                id(mosfet_ramp_switch).publish_state(true);   // reflect in HA immediately
            - script.stop: ramp_off_script
            - script.execute: ramp_on_script

#:########################################################################################:#
# SENSOR COMPONENT
# https://esphome.io/components/sensor/
#:########################################################################################:#
sensor:
  - platform: template
    id: mosfet_output_pct
    name: "${friendly_name} Output (%)"
    unit_of_measurement: "%"
    icon: mdi:percent
    accuracy_decimals: 0
    update_interval: 2s
    lambda: |-
      const auto &cv = id(mosfet_leds).current_values;
      return cv.is_on() ? (float) (int)(cv.get_brightness() * 100.0f + 0.5f) : 0.0f;

    on_value:
      then:
        - lambda: |-
            // If not suppressing sync, update the 0..100 slider only when its INT changes
            if (!id(suppress_slider_sync)) {
              float actual = x;  // x is current Output (%)
              float minp = (float) id(min_brightness_pct);
              float maxp = (float) id(max_brightness_pct);
              if (maxp <= minp) maxp = minp + 1.0f;
              float pos = (actual <= 0.0f) ? 0.0f : ((actual - minp) * 100.0f / (maxp - minp));
              if (pos < 0.0f) pos = 0.0f;
              if (pos > 100.0f) pos = 100.0f;
              int pos_i = (int) floorf(pos + 0.5f);

              if (pos_i != id(last_set_pos)) {
                id(last_set_pos) = pos_i;
                id(led_output_set_pct).publish_state(pos_i);
              }
            }

  - platform: template
    id: mosfet_output_pwm_pct
    name: "${friendly_name} Output PWM (%)"
    unit_of_measurement: "%"
    icon: mdi:square-wave
    accuracy_decimals: 1
    update_interval: 2s
    lambda: |-
      const auto &cv = id(mosfet_leds).current_values;
      if (!cv.is_on()) return 0.0f;
      const float lin = cv.get_brightness();
      float pwm = powf(lin, id(led_gamma_f));
      if (pwm < 0.0f) pwm = 0.0f;
      if (pwm > 1.0f) pwm = 1.0f;
      return pwm * 100.0f;

#:########################################################################################:#
# OUTPUT COMPONENT
# https://esphome.io/components/light/index.html
#:########################################################################################:#
# An OUTPUT can be binary (0,1) or float, which is any value between 0 and 1.
# PWM Outputs such as "ledc" are float. https://esphome.io/components/output/ledc.html
#:########################################################################################:#
output:
  - platform: esp8266_pwm
    id: mosfet_pwm
    pin: ${device_mosfet_out}
    frequency: ${pwm_frequency}

  - platform: gpio
    id: green_led_out    # Green LED
    pin:
      number: ${device_fading_led}
      inverted: false

#:########################################################################################:#
# LIGHT COMPONENT
# https://esphome.io/components/light/
#:########################################################################################:#
light:
  - platform: monochromatic
    id: mosfet_leds
    name: "${friendly_name}"
    output: mosfet_pwm
    restore_mode: RESTORE_DEFAULT_OFF
    default_transition_length: 2s
    icon: mdi:led-strip-variant
    gamma_correct: "${led_gamma}"

    # ON: publish state, track intent, arm watchdog if configured
    on_turn_on:
      - output.turn_on: green_led_out
      - mqtt.publish:
          topic: "${mqtt_local_status_topic}/light/state"
          payload: "${mqtt_local_device_command_ON}"
          retain: true
      - lambda: |-
          // Do not flip "intent to ON" when we are inside an OFF ramp's floor-kick
          if (!id(ramping_for_off)) {
            id(ramp_switch_target_on) = true;
          }
      - script.stop: max_on_watchdog
      - if:
          condition:
            lambda: "return id(max_on_hours) > 0;"
          then:
            - script.execute: max_on_watchdog

    # OFF: publish state, track intent, clear watchdog, and persist OFF so Mode 1 will not restore
    # Guarded by booting flag so the automatic OFF at boot from ALWAYS_OFF does not zero persistence.
    on_turn_off:
      - output.turn_off: green_led_out
      - if:
          condition:
            lambda: "return !id(booting);"
          then:
            - mqtt.publish:
                topic: "${mqtt_local_status_topic}/light/state"
                payload: "${mqtt_local_device_command_OFF}"
                retain: true
            - lambda: "id(ramp_switch_target_on) = false;"
            - script.stop: max_on_watchdog
            - lambda: |-
                id(last_brightness_pct) = 0.0f;
                id(last_set_pos) = 0;
                id(led_output_set_pct).publish_state(0);

    # Cap brightness to max_brightness_pct without a visible step
    on_state:
      - lambda: |-
          const float cap = id(max_brightness_pct) / 100.0f;
          const auto &cv = id(mosfet_leds).current_values;
          if (!cv.is_on()) return;
          const float b = cv.get_brightness();
          if (b <= cap + 0.001f) return;  // no call if already at/under cap
          auto call = id(mosfet_leds).make_call();
          call.set_state(true);
          call.set_brightness(cap);
          call.set_transition_length(0);
          call.perform();

#:########################################################################################:#
# NUMBER COMPONENT
# https://esphome.io/components/number/
#:########################################################################################:#
number:
  - platform: template
    id: cfg_ramp_up_s
    name: "${friendly_name} Fade Up Time (s)"
    entity_category: config
    unit_of_measurement: s
    icon: mdi:timer-sand
    mode: slider
    min_value: 0
    max_value: 60
    step: 1
    lambda: |-
      return (float) id(ramp_up_ms) / 1000.0f;
    set_action:
      - lambda: |-
          int secs = (int) floorf(x + 0.5f);
          if (secs < 0) secs = 0;
          if (secs > 60) secs = 60;
          id(ramp_up_ms) = secs * 1000;
          id(cfg_ramp_up_s).publish_state((float) secs);

  - platform: template
    id: cfg_ramp_down_s
    name: "${friendly_name} Fade Down Time (s)"
    entity_category: config
    unit_of_measurement: s
    icon: mdi:timer-sand-complete
    mode: slider
    min_value: 0
    max_value: 60
    step: 1
    lambda: |-
      return (float) id(ramp_down_ms) / 1000.0f;
    set_action:
      - lambda: |-
          int secs = (int) floorf(x + 0.5f);
          if (secs < 0) secs = 0;
          if (secs > 60) secs = 60;
          id(ramp_down_ms) = secs * 1000;
          id(cfg_ramp_down_s).publish_state((float) secs);

  - platform: template
    id: led_output_set_pct
    name: "${friendly_name} Output Set (0-100)"
    icon: mdi:tune
    mode: slider
    min_value: 0
    max_value: 100
    step: 1
    # Show current position mapped into 0..100 across [min..max]
    lambda: |-
      const auto &cv = id(mosfet_leds).current_values;
      float actual = cv.is_on() ? (cv.get_brightness() * 100.0f) : 0.0f;  // 0..100 actual
      float minp = (float) id(min_brightness_pct);
      float maxp = (float) id(max_brightness_pct);
      if (maxp <= minp) maxp = minp + 1.0f;  // avoid div/0
      if (actual <= 0.0f) return 0.0f;       // when OFF, show 0
      float pos = (actual - minp) * 100.0f / (maxp - minp);
      if (pos < 0.0f) pos = 0.0f;
      if (pos > 100.0f) pos = 100.0f;
      return floorf(pos + 0.5f);             // integer
    set_action:
      - if:
          condition:
            lambda: "return x <= 0.0f;"
          then:
            # 0 means OFF
            - lambda: "id(suppress_slider_sync) = true;"
            - script.stop: ramp_on_script
            - script.stop: ramp_off_script
            - light.turn_off:
                id: mosfet_leds
                transition_length: 200ms
            - lambda: |-
                id(ramp_switch_target_on) = false;
                id(led_output_set_pct).publish_state(0);
                id(last_brightness_pct) = 0.0f;  // persist OFF immediately
                id(last_set_pos) = 0;
            - delay: 400ms
            - lambda: "id(suppress_slider_sync) = false;"
          else:
            # Map 1..100 - [min..max] and set ON
            - lambda: |-
                id(suppress_slider_sync) = true;
                float pos = x;                  // 0..100
                if (pos < 1.0f) pos = 1.0f;     // 0 is OFF
                if (pos > 100.0f) pos = 100.0f;
                id(led_output_set_pct).publish_state((int) floorf(pos + 0.5f));
            - script.stop: ramp_off_script
            - script.stop: ramp_on_script
            - light.turn_on:
                id: mosfet_leds
                brightness: !lambda |-
                  float pos = id(led_output_set_pct).state; // 1..100
                  float minp = (float) id(min_brightness_pct);
                  float maxp = (float) id(max_brightness_pct);
                  if (maxp <= minp) maxp = minp + 1.0f;
                  float out_pct = minp + (pos * (maxp - minp) / 100.0f);
                  if (out_pct > maxp) out_pct = maxp;
                  return out_pct / 100.0f;
                transition_length: 250ms
            - lambda: |-
                id(ramp_switch_target_on) = true;
                float pos = id(led_output_set_pct).state; // 1..100
                float minp = (float) id(min_brightness_pct);
                float maxp = (float) id(max_brightness_pct);
                if (maxp <= minp) maxp = minp + 1.0f;
                float out_pct = minp + (pos * (maxp - minp) / 100.0f);
                if (out_pct > maxp) out_pct = maxp;
                id(last_brightness_pct) = out_pct;   // persist exact target now
            - delay: 400ms
            - lambda: "id(suppress_slider_sync) = false;"

  - platform: template
    id: cfg_max_on_hours
    name: "${friendly_name} Max On (h)"
    entity_category: config
    unit_of_measurement: h
    icon: mdi:timer-cog
    mode: slider
    min_value: 0
    max_value: 48
    step: 1
    lambda: |-
      return (float) id(max_on_hours);
    set_action:
      - lambda: |-
          int hrs = (int) x;
          if (hrs < 0)  hrs = 0;
          if (hrs > 48) hrs = 48;
          id(max_on_hours) = hrs;
          id(cfg_max_on_hours).publish_state((float) hrs);
      - if:
          condition:
            lambda: "return id(mosfet_leds).current_values.is_on();"
          then:
            - script.stop: max_on_watchdog
            - if:
                condition:
                  lambda: "return id(max_on_hours) > 0;"
                then:
                  - script.execute: max_on_watchdog

#:########################################################################################:#
# SCRIPT COMPONENT
# https://esphome.io/components/script.html
# Scripts can be executed nearly anywhere in your device configuration with a single call.
#:########################################################################################:#
script:
  # Script: ramp up from current level. Obey global max. (LED ON while ramping)
  - id: ramp_on_script
    mode: restart
    then:
      - lambda: "id(is_ramping) = true;"
      - script.stop: ramp_off_script
      # Ensure we start at at least the floor without a visible "pop".
      - if:
          condition:
            lambda: |-
              const auto &cv = id(mosfet_leds).current_values;
              const float floor = id(min_brightness_pct) / 100.0f;
              return (!cv.is_on()) || (cv.get_brightness() + 0.0005f < floor);
          then:
            - light.turn_on:
                id: mosfet_leds
                brightness: !lambda "return id(min_brightness_pct) / 100.0f;"
                transition_length: 80ms
      # Ramp from current (>= floor) to cap over a fraction of ramp_up_ms.
      - light.turn_on:
          id: mosfet_leds
          brightness: !lambda "return id(max_brightness_pct) / 100.0f;"
          transition_length: !lambda |-
            const auto &cv = id(mosfet_leds).current_values;
            const float floor = id(min_brightness_pct) / 100.0f;
            const float cap  = id(max_brightness_pct) / 100.0f;
            if (cap <= floor + 0.0005f) { id(last_ramp_ms) = 0; return (uint32_t) 0; }

            float curr = cv.is_on() ? cv.get_brightness() : 0.0f;

            if (curr + 0.0005f < floor) {
              id(last_ramp_ms) = id(ramp_up_ms);
              return (uint32_t) id(last_ramp_ms);
            }
            if (curr > cap)   curr = cap;
            if (curr < floor) curr = floor;
            float frac = (cap - curr) / (cap - floor);
            if (frac < 0.0f) frac = 0.0f;
            if (frac > 1.0f) frac = 1.0f;
            id(last_ramp_ms) = (int) (id(ramp_up_ms) * frac);
            return (uint32_t) id(last_ramp_ms);
      - delay: !lambda "return (uint32_t) id(last_ramp_ms);"
      - lambda: |-
          id(is_ramping) = false;
          const auto &cv = id(mosfet_leds).current_values;
          if (cv.is_on()) {
            float pct = cv.get_brightness() * 100.0f;
            id(last_brightness_pct) = pct;  // persist final level
          }

  # Script: ramp to a specific target (Restore Brightness path). (LED ON while ramping)
  - id: ramp_to_target_script
    mode: restart
    then:
      - lambda: "id(is_ramping) = true;"
      - script.stop: ramp_off_script
      # Ensure we start at the floor cleanly.
      - if:
          condition:
            lambda: |-
              const auto &cv = id(mosfet_leds).current_values;
              const float floor = id(min_brightness_pct) / 100.0f;
              return (!cv.is_on()) || (cv.get_brightness() + 0.0005f < floor);
          then:
            - light.turn_on:
                id: mosfet_leds
                brightness: !lambda "return id(min_brightness_pct) / 100.0f;"
                transition_length: 80ms
      # Ramp from current (>= floor) to restore_target_pct over a fraction of ramp_up_ms.
      - light.turn_on:
          id: mosfet_leds
          brightness: !lambda |-
            float cap_pct = id(restore_target_pct);
            float maxp    = (float) id(max_brightness_pct);
            if (cap_pct > maxp) cap_pct = maxp;
            return cap_pct / 100.0f;
          transition_length: !lambda |-
            const auto &cv = id(mosfet_leds).current_values;
            const float floor = id(min_brightness_pct) / 100.0f;
            float cap  = id(restore_target_pct) / 100.0f;
            const float maxp = id(max_brightness_pct) / 100.0f;
            if (cap > maxp) cap = maxp;
            if (cap <= floor + 0.0005f) { id(last_ramp_ms) = 0; return (uint32_t) 0; }

            float curr = cv.is_on() ? cv.get_brightness() : 0.0f;
            if (curr + 0.0005f < floor) {
              id(last_ramp_ms) = id(ramp_up_ms);
              return (uint32_t) id(last_ramp_ms);
            }

            if (curr > cap)   curr = cap;
            if (curr < floor) curr = floor;
            float frac = (cap - curr) / (cap - floor);
            if (frac < 0.0f) frac = 0.0f;
            if (frac > 1.0f) frac = 1.0f;
            id(last_ramp_ms) = (int) (id(ramp_up_ms) * frac);
            return (uint32_t) id(last_ramp_ms);
      - delay: !lambda "return (uint32_t) id(last_ramp_ms);"
      - lambda: |-
          id(is_ramping) = false;
          const auto &cv = id(mosfet_leds).current_values;
          if (cv.is_on()) {
            float pct = cv.get_brightness() * 100.0f;
            id(last_brightness_pct) = pct;  // persist final level
          }

  # Script: ramp down from current level to floor, then cleanly cut to OFF. (LED ON while ramping)
  - id: ramp_off_script
    mode: restart
    then:
      - lambda: |-
          id(is_ramping) = true;
          id(ramping_for_off) = true;
      - script.stop: ramp_on_script
      - light.turn_on:
          id: mosfet_leds
          brightness: !lambda "return id(min_brightness_pct) / 100.0f;"
          transition_length: !lambda |-
            const auto &cv = id(mosfet_leds).current_values;
            const float floor = id(min_brightness_pct) / 100.0f;
            float curr = cv.get_brightness();
            if (curr < floor) curr = floor;
            const float denom = (1.0f - floor);
            if (denom <= 0.0005f) { id(last_ramp_ms) = 0; return (uint32_t) 0; }
            float frac = (curr - floor) / denom;
            if (frac < 0.0f) frac = 0.0f;
            if (frac > 1.0f) frac = 1.0f;
            id(last_ramp_ms) = (int) (id(ramp_down_ms) * frac);
            return (uint32_t) id(last_ramp_ms);
      - delay: !lambda "return (uint32_t) id(last_ramp_ms);"
      - light.turn_off:
          id: mosfet_leds
          transition_length: 150ms
      - delay: 150ms
      - lambda: |-
          id(is_ramping) = false;
          id(ramping_for_off) = false;
          id(last_brightness_pct) = 0.0f;   // persist OFF for restore path
          id(last_set_pos) = 0;
          id(led_output_set_pct).publish_state(0);

  - id: max_on_watchdog
    mode: restart
    then:
      - if:
          condition:
            lambda: "return id(max_on_hours) > 0;"
          then:
            - delay: !lambda "return (uint32_t) (id(max_on_hours) * 3600000UL);"
            - if:
                condition:
                  lambda: "return id(mosfet_leds).current_values.is_on();"
                then:
                  - lambda: |-
                      id(ramp_switch_target_on) = false;
                      id(mosfet_ramp_switch).publish_state(false);
                  - script.stop: ramp_on_script
                  - script.execute: ramp_off_script

  # Deferred restore to avoid early-boot races and ensure we apply the last saved level
  - id: deferred_restore_brightness
    mode: restart
    then:
      - delay: 5s   # let preferences/globals load and light settle
      - lambda: |-
          // Use ONLY the exact last saved brightness.
          float target = id(last_brightness_pct);

          // Clamp into [min..max] only if we are restoring a non-zero target
          float minp = (float) id(min_brightness_pct);
          float maxp = (float) id(max_brightness_pct);
          if (target > 0.0f && target < minp) target = minp;
          if (target > maxp)                  target = maxp;

          id(restore_target_pct) = target;

      - if:
          condition:
            lambda: "return id(restore_target_pct) > 0.5f;"
          then:
            - lambda: |-
                id(ramp_switch_target_on) = true;   // reflect our intent
                id(suppress_slider_sync) = true;
            - script.stop: ramp_off_script
            - script.execute: ramp_to_target_script
            - delay: !lambda "return (uint32_t) id(last_ramp_ms);"
            - lambda: "id(suppress_slider_sync) = false;"
          else:
            # Exact last was 0 -> remain OFF
            - lambda: "id(ramp_switch_target_on) = false;"
            - light.turn_off:
                id: mosfet_leds
                transition_length: 0s
            # (Removed: output.turn_off: green_led_out)  # make sure LED is off if no ramp