Repository.fs

namespace Dhl

open FSharp.Data
open FSharp.Data.Runtime
open System
open System.IO
open Resources

type TrackingNumbers = CsvProvider<"./Data/sample.csv", Separators=";", ResolutionFolder=__SOURCE_DIRECTORY__>

type TrackingNumber = TrackingNumber of string

module Repository =

    let private path =
        (Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "dhl.csv")
        |> Path.Combine

    let loadFile () = path |> TrackingNumbers.Load

    let saveFile (file: CsvFile<TrackingNumbers.Row>) = path |> file.Save

    let loadTrackingNumbers () =
        loadFile().Rows |> Seq.map (fun r -> TrackingNumber(r))

    let add (TrackingNumber(number)) =
        loadFile ()
        |> fun rows -> rows.Append [ new TrackingNumbers.Row(number) ]
        |> saveFile

        Number_Added.FormattedString(number)

    let remove (TrackingNumber(number)) =
        loadFile ()
        |> fun file -> file.Filter(fun item -> item.TrackingNumber <> number) |> saveFile

        Number_Removed.FormattedString(number)