Fix an error where the json files can't be created.

[master-thesis.git] / Parasitemia / ParasitemiaUI / Utils.fs

diff --git a/Parasitemia/ParasitemiaUI/Utils.fs b/Parasitemia/ParasitemiaUI/Utils.fs
index 324e5f0..97c7425 100644 (file)
--- a/Parasitemia/ParasitemiaUI/Utils.fs
+++ b/Parasitemia/ParasitemiaUI/Utils.fs
@@ -1,12 +1,63 @@
 module ParasitemiaUI.Utils
 
-let listAsStr (s: 'a seq) =
-    s |> Seq.fold (fun acc obj -> acc + (if acc = "" then "" else ", ") + obj.ToString()) ""
+open System.IO
 
-let percentText (nbTotal: int, nb: int) : string =
-    if nbTotal = 0
-    then
+open Newtonsoft.Json
+open Newtonsoft.Json.Converters
+
+open Types
+
+let inline listAsStr (s : 'a seq) =
+    s |> Seq.fold (fun acc obj -> acc + (if acc = "" then "" else ", ") + string obj) ""
+
+let percentText (nbTotal : int, nb : int) : string =
+    if nbTotal = 0 then
         ""
     else
         let percent = 100. * (float nb) / (float nbTotal)
-        sprintf "%.1f %% (%d / %d)" percent nb nbTotal
\ No newline at end of file
+        sprintf "%.1f %% (%d / %d)" percent nb nbTotal
+
+let roamingDir =
+    Path.Combine (System.Environment.GetFolderPath (System.Environment.SpecialFolder.ApplicationData), "Parasitemia")
+
+let predefinedPPIFilename = "predefined-ppi.json"
+let predefinedPPIFilepath = Path.Combine (roamingDir, predefinedPPIFilename)
+
+let sensorSizesFilename = "sensor-sizes.json"
+let sensorSizesFilepath = Path.Combine (roamingDir, sensorSizesFilename)
+
+let private savePredefinedPPIToFile (predefinedPPI : PredefinedPPI list) =
+    try
+        Directory.CreateDirectory roamingDir |> ignore
+        use file = new StreamWriter (predefinedPPIFilepath)
+        file.Write (JsonConvert.SerializeObject (predefinedPPI, JsonSerializerSettings (Formatting = Formatting.Indented)))
+    with
+        ex ->
+            Logger.Log.Error "Unable to save predefined PPI to file \"%s\": %O" predefinedPPIFilepath ex
+
+let private saveSensorSizesToFile (sensorSizes : SensorSize list) =
+    try
+        Directory.CreateDirectory roamingDir |> ignore
+        use file = new StreamWriter (sensorSizesFilepath)
+        file.Write (JsonConvert.SerializeObject (sensorSizes, JsonSerializerSettings (Formatting = Formatting.Indented)))
+    with
+        ex ->
+            Logger.Log.Error "Unable to save sensor sizes to file \"%s\": %O" sensorSizesFilepath ex
+
+let predefinedPPI : PredefinedPPI list =
+    try
+        use file = new StreamReader (predefinedPPIFilepath)
+        JsonConvert.DeserializeObject<PredefinedPPI list> (file.ReadToEnd ())
+    with
+    | ex ->
+        savePredefinedPPIToFile defaultPredefinedPPI
+        defaultPredefinedPPI
+
+let sensorSizes : SensorSize list =
+    try
+        use file = new StreamReader (sensorSizesFilepath)
+        JsonConvert.DeserializeObject<SensorSize list> (file.ReadToEnd ())
+    with
+    | ex ->
+        saveSensorSizesToFile defaultSensorSizes
+        defaultSensorSizes