Added view switcher. Added hard coded metars

actransit.nim

@@ -14,3 +14,25 @@ proc format_predictions*(prd: JSONNode): string =
     "No prediction available"
   else:
     prd["prd"].getElems.map(time => time["prdctdn"].getStr).join(", ")
+
+proc home_predictions*: string =
+  let client = newHttpClient()
+  const home_nl = "51067"
+  const home_12 = "58995"
+  const home_29 = "56557"
+
+  let nl_predictions = client.get_predictions(home_nl, "NL").format_predictions
+  let twelve_predictions = client.get_predictions(home_12, "12").format_predictions
+  let twenty_nine_predictions = client.get_predictions(home_29, "29").format_predictions
+
+  &"Home\nNL: {nl_predictions}\n12: {twelve_predictions}\n29: {twenty_nine_predictions}"
+
+proc office_predictions*: string =
+  let client = newHttpClient()
+  const office_nl = "56565"
+  const office_12 = "57111"
+
+  let nl_predictions = client.get_predictions(office_nl, "NL").format_predictions
+  let twelve_predictions = client.get_predictions(office_12, "12").format_predictions
+
+  &"Oakland Office\nNL: {nl_predictions}\n12: {twelve_predictions}"

metar.nim

@@ -0,0 +1,56 @@
+import std/[httpclient, os, sequtils, sugar, strutils, xmlparser, xmltree]
+import strformat
+
+proc getMetar(client: HttpClient, code: string): XMLNode =
+  let requestUrl = &"https://aviationweather.gov/adds/dataserver_current/httpparam?dataSource=metars&requestType=retrieve&format=xml&hoursBeforeNow=3&mostRecent=true&stationString={code}"
+  let metarData = client.getContent(requestUrl)
+  parseXml(metarData)
+
+proc childString(node: XMLnode, name: string): string =
+  let node = node.child(name)
+  if node != nil:
+    result = node.innerText
+  else:
+    result = ""
+
+type SkyCondition* = object
+  skyCover: string
+  cloudBaseAgl: string
+
+type MetarData* = object
+  rawText*: string
+  stationId*: string
+  observationTime*: string
+  temperature*: string
+  dewPoint*: string
+  windHeading*: string
+  windSpeedKnots*: string
+  visibility*: string
+  altimiter*: string
+  flightCategory*: string
+  skyConditions*: seq[SkyCondition]
+
+proc newMetarData*(xmlData: XMLNode): MetarData =
+  let metar = xmlData.child("data").child("METAR")
+
+  result = MetarData(
+    rawText: metar.childString("raw_text"),
+    stationId: metar.childString("station_id"),
+    observationTime: metar.childString("observation_time"),
+    temperature: metar.childString("temp_c"),
+    dewPoint: metar.childString("dewpoint_c"),
+    windHeading: metar.childString("wind_dir_degrees"),
+    visibility: metar.childString("visibility_statute_mi"),
+    altimiter: metar.childString("altim_in_hg"),
+    flightCategory: metar.childString("flight_category")
+  )
+
+  for skyConditionXml in metar.findAll("sky_condition"):
+    result.skyConditions.add(
+      SkyCondition(
+        skyCover: skyConditionXml.attr("sky_cover"),
+        cloudBaseAgl: skyconditionXml.attr("cloud_base_ft_agl"))) 
+
+proc getMetars*(airports: seq[string]): seq[MetarData] =
+  let client = newHttpClient()
+  airports.map(airportCode => client.getMetar(airportCode)).map(metarXml => newMetarData(metarXml))

toolbox.nim

@@ -1,47 +1,93 @@
 import gintro/[gtk4, gobject, gio, adw]
-import std/[httpclient, with]
+import std/[with]
-import strformat
 import actransit
+import metar
 
-proc home_predictions: string =
+const airports = @["khwd", "koak", "klvk", "khaf"]
-  let client = newHttpClient()
-  const home_nl = "51067"
-  const home_12 = "58995"
-  const home_29 = "56557"
 
-  let nl_predictions = client.get_predictions(home_nl, "NL").format_predictions
+proc clearMetars(metar_list: gtk4.ListBox) =
-  let twelve_predictions = client.get_predictions(home_12, "12").format_predictions
+  for i in 1..airports.len:
-  let twenty_nine_predictions = client.get_predictions(home_29, "29").format_predictions
+    let metar_row = metar_list.get_row_at_index(0)
+    metar_list.remove(metar_row)
 
-  &"Home\nNL: {nl_predictions}\n12: {twelve_predictions}\n29: {twenty_nine_predictions}"
+proc addMetars(metar_list: gtk4.ListBox) =
+  let metars = getMetars(airports)
 
-proc office_predictions: string =
+  for metar in metars:
-  let client = newHttpClient()
+    let metar_label = newLabel()
-  const office_nl = "56565"
+    with metar_label:
-  const office_12 = "57111"
+      text = metar.rawText.cstring
+      halign = Align.start
+      wrap = true
+    metar_list.append(metar_label)
 
-  let nl_predictions = client.get_predictions(office_nl, "NL").format_predictions
+proc button_refresh_signal(b: Button,
-  let twelve_predictions = client.get_predictions(office_12, "12").format_predictions
+                            widgets: tuple[vs: adw.ViewStack, home: Label, office: Label, metar_list: gtk4.ListBox]) =
-
+  if widgets.vs.get_visible_child_name() == "act_view":
-  &"Oakland Office\nNL: {nl_predictions}\n12: {twelve_predictions}"
+    widgets.home.text = home_predictions().cstring
+    widgets.office.text = office_predictions().cstring
+  elif widgets.vs.get_visible_child_name() == "metar_view":
+    clearMetars(widgets.metar_list)
+    addMetars(widgets.metar_list)
 
 proc activate(app: adw.Application) =
   let
     window = adw.newApplicationWindow(app)
+    view_stack = adw.newViewStack()
+    switcher_bar = adw.newViewSwitcherBar()
+
+    bart_box = newBox(Orientation.vertical, 0)
+
+    metar_box = newBox(Orientation.vertical, 0)
+    metar_list = newListBox()
+
+    act_box = newBox(Orientation.vertical, 0)
     home_label = newLabel()
     office_label = newLabel()
 
     refresh_button = newButtonFromIconName("view-refresh")
     header = adw.newHeaderBar()
-    mainBox = newBox(Orientation.vertical, 0)
+    main_box = newBox(Orientation.vertical, 0)
-  with mainBox:
+
+
+  with main_box:
     append header
+    append view_stack
+    append switcher_bar
+
+  let
+    act_view_page = view_stack.add_titled(act_box, "act_view", "AC Transit")
+    bart_view_page = view_stack.add_titled(bart_box, "bart_view", "BART")
+    metar_view_page = view_stack.add_titled(metar_box, "metar_view", "Metar")
+
+  act_view_page.set_icon_name("go-home")
+  bart_view_page.set_icon_name("view-grid")
+  metar_view_page.set_icon_name("weather-clear")
+  
+  with view_stack:
+    set_visible_child_name "act_view"
+    vexpand = true
+
+  with switcher_bar:
+    reveal = true
+    stack = view_stack
+    valign = Align.end
+
+  with act_box:
     append home_label
     append office_label
 
+  with metar_box:
+    append metar_list
+
   with header:
     pack_end refresh_button
 
+  with metar_list:
+    selectionMode = SelectionMode.none
+    showSeparators = true
+  addMetars(metar_list)
+
   with refresh_button:
     iconName = "view-refresh"
 
@@ -51,6 +97,7 @@ proc activate(app: adw.Application) =
     marginBottom = 10
     marginStart = 10
     marginEnd = 10
+    halign = Align.start
 
   with office_label:
     text = office_predictions().cstring
@@ -58,17 +105,15 @@ proc activate(app: adw.Application) =
     marginBottom = 10
     marginStart = 10
     marginEnd = 10
+    hexpand = true
+    halign = Align.start
 
-  proc button_refresh_signal(b: Button, labels: tuple[home: Label, office: Label]) =
+  refresh_button.connect("clicked", button_refresh_signal, (view_stack, home_label, office_label, metar_list))
-    labels.home.text = home_predictions().cstring
-    labels.office.text = office_predictions().cstring
-
-  refresh_button.connect("clicked", button_refresh_signal, (home_label, office_label))
 
   with window:
     title = "Toolbox"
     defaultSize = (300, 500)
-    content = mainBox
+    content = main_box
     show()
 
 proc initAdw(app: adw.Application) =