variable "shelly_ip" {
  type        = string
  description = "The local IP address of the Shelly Plug S (Gen3) controller"
  default     = "192.168.10.168"
}

variable "sensor_aussen_mac" {
  type        = string
  description = "The Bluetooth MAC address of the outdoor sensor (e.g. Shelly BLU H&T)"
}

variable "sensor_innen_mac" {
  type        = string
  description = "The Bluetooth MAC address of the indoor sensor (e.g. Shelly BLU H&T)"
}

variable "taupunktschwelle" {
  type        = number
  description = "Dew point difference threshold [°C] to trigger the fan (indoor_dp > outdoor_dp + threshold)"
  default     = 2.0
}

variable "mindesttemperatur" {
  type        = number
  description = "Minimum indoor temperature [°C] required to run the fan (frost / cold protection)"
  default     = 10.0
}

variable "max_indoor_temp_heating" {
  type        = number
  description = "Maximum cellar temperature [°C] below which heating with outdoor air is permitted. Above this, T_out must be <= T_in."
  default     = 20.0
}

variable "winter_temp_threshold_in" {
  type        = number
  description = "Indoor temperature threshold [°C] below which winter mode is active"
  default     = 14.0
}

variable "winter_temp_threshold_out" {
  type        = number
  description = "Outdoor temperature threshold [°C] below which winter mode is active"
  default     = 10.0
}

variable "target_humi_summer" {
  type        = number
  description = "Target indoor relative humidity [%] during warm / summer mode"
  default     = 40.0
}

variable "target_humi_winter" {
  type        = number
  description = "Target indoor relative humidity [%] during cold / winter mode (avoids over-cooling)"
  default     = 50.0
}

variable "urgent_humi_threshold" {
  type        = number
  description = "Relative humidity threshold [%] above which ventilation is urgently evaluated 24/7"
  default     = 60.0
}

variable "night_window_start_hour" {
  type        = number
  description = "Start hour (0-23) for the optimal dew point drying window"
  default     = 3
}

variable "night_window_end_hour" {
  type        = number
  description = "End hour (0-23) for the optimal dew point drying window"
  default     = 7
}

variable "max_runtime_minutes" {
  type        = number
  description = "Maximum continuous fan runtime in minutes before enforcing a cooldown pause"
  default     = 90
}

variable "min_pause_minutes" {
  type        = number
  description = "Minimum rest period in minutes after a ventilation burst to allow thermal/humidity equilibration"
  default     = 20
}

variable "schaltzeit" {
  type        = number
  description = "Switch logic check interval in seconds"
  default     = 180
}

variable "battery_warngrenze" {
  type        = number
  description = "Battery level warning threshold [%]"
  default     = 20
}

variable "lost_connection" {
  type        = number
  description = "Time in seconds after which data is considered stale, causing the fan to turn off for safety"
  default     = 600
}

variable "critical_humi_base" {
  type        = number
  description = "Critical indoor relative humidity [%] at reference temperature (for mold warning curve)"
  default     = 80
}

variable "critical_humi_temp_coeff" {
  type        = number
  description = "Temperature coefficient [%/°C] for the mold warning curve"
  default     = 0.5
}

variable "critical_humi_ref_temp" {
  type        = number
  description = "Reference temperature [°C] for the mold warning curve"
  default     = 10
}

variable "critical_humi_buffer" {
  type        = number
  description = "Safety buffer [%] subtracted from the critical relative humidity threshold for mold alert"
  default     = 10
}