module Config

open System

open Const

type Debug =
    | DebugOff
    | DebugOn of string // Output directory.

type Parameters = {
    initialAreaOpen: int // Area of the first initial opening to remove the central illumination of RBC.
    ratioSecondAreaOpen: float32 // The area of the second opening is 'ratioSecondAreaOpen' * mean RBC area. It's applied only if greater than 'initialAreaOpen'.

    minRbcRadius: float32 // Factor of the mean RBC radius.
    maxRbcRadius: float32 // Factor of the mean RBC radius.

    preFilterSigma: float // To remove the high frequency noise.

    // Ellipse.
    factorNbPick: float // The number of computed ellipse per edge pixel.

    // Parasites detection.
    darkStainLevel: float // Lower -> more sensitive. Careful about illumination on the borders.
    maxDarkStainRatio: float // When a cell must own less than this ratio to be a RBC.

    stainArea: float32 // Factor of a RBC area. 0.5 means the half of RBC area.
    stainLevel: float // > 1
    maxStainRatio: float // When a cell must own less than this ratio to be a RBC.

    infectionArea: float32 // Factor of a RBC area. 0.5 means the half of RBC area.
    infectionLevel: float // > 1

    standardDeviationMaxRatio: float // The standard deviation of the pixel values of a cell can't be greater than standardDeviationMaxRatio * global standard deviation
    minimumCellAreaFactor: float32 // Factor of the mean RBC area.
}

type Config (param: Parameters) =
    member this.Parameters = param
    member val Debug = DebugOff with get, set

    // Mean RBC radius.
    member val RBCRadius = 30.f with get, set

    member this.RBCMinRadius = this.RBCRadius + param.minRbcRadius * this.RBCRadius
    member this.RBCMaxRadius = this.RBCRadius + param.maxRbcRadius * this.RBCRadius

    member this.RBCArea = PI * this.RBCRadius ** 2.f
    member this.RBCMinArea = param.minimumCellAreaFactor * this.RBCArea

    member this.InfectionArea = param.infectionArea * this.RBCArea
    member this.StainArea = param.stainArea * this.RBCArea

    member this.Copy () =
        this.MemberwiseClone() :?> Config