module Parasitemia.GUI.State

open System.Collections.Generic

open Emgu.CV
open Emgu.CV.Structure

open Types

type State () =
    let sourceImages = List<SourceImage>()
    let mutable currentImage = -1

    member val FilePath: string = "" with get, set
    member val PatientID: string = "" with get, set

    member this.Save () =
        let data = { Pia.sources = []; Pia.patientID = this.PatientID }
        Pia.save this.FilePath data

    member this.Load () =
        let data = Pia.load this.FilePath
        this.PatientID <- data.patientID

    member this.AddSourceImage (filePath: string) : SourceImage =
        let srcImg = { num = sourceImages.Count + 1; rbcs = []; img = new Image<Bgr, byte>(filePath) }
        sourceImages.Add(srcImg)
        if sourceImages.Count = 1
        then
            currentImage <- 1
        srcImg

    member x.SourceImages : SourceImage seq =
        sourceImages :> SourceImage seq

    member this.Reset () =
        this.PatientID <- ""
        sourceImages.Clear()