feat: initial draft of default-flatpaks v2

this version just sets up the config file but nothing to read it and install the flatpaks after boot

modules/default-flatpaks/v2/default-flatpaks.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env nu
+
+const flathubURL = "https://dl.flathub.org/repo/flathub.flatpakrepo"
+
+const defaultInstallation = {
+    notify: true
+    scope: user
+    repo: {
+        url: $flathubURL
+        name: "flathub"
+        title: "Flathub"
+    }
+    install: []
+}
+const configPath = '/usr/share/bluebuild/default-flatpaks/configuration.json'
+
+def main [configStr: string] {
+    let config = $configStr | from json
+
+    let installations = $config.installations | each {|installation|
+        mut merged = $defaultInstallation | merge $installation
+        $merged.repo = $defaultInstallation.repo | merge $merged.repo # make sure all repo properties exist
+
+        print $"(ansi blue)Validating installation of(ansi reset) (ansi default_italic)($merged.install | length)(ansi reset) (ansi blue)Flatpaks from(ansi reset) (ansi default_italic)($merged.repo.title)(ansi reset)"
+
+        if (not ($merged.scope == "system" or $merged.scope == "user")) {
+            print $"(ansi red_bold)Scope must be either(ansi reset) (ansi blue_italic)system(ansi reset) (ansi red_bold)or(ansi reset) (ansi blue_italic)user(ansi reset)"
+            print $"(ansi blue)Your input:(ansi reset) ($merged.scope)"
+            exit 1
+        }
+        if (not ($merged.notify == true or $merged.notify == false)) {
+            print $"(ansi red_bold)Notify must be either(ansi reset) (ansi blue_italic)true(ansi reset) (ansi red_bold)or(ansi reset) (ansi blue_italic)false(ansi reset)"
+            print $"(ansi blue)Your input:(ansi reset) ($merged.notify)"
+            exit 1
+        }
+        if ($merged.repo.url == $flathubURL) {
+            checkFlathub $merged.install
+        }
+
+        print $"(ansi green_bold)Validation successful!(ansi reset)"
+
+        $merged
+    }
+
+
+    if (not ($configPath | path exists)) {
+        mkdir ($configPath | path dirname)
+        '[]'| save $configPath
+    }
+
+    open $configPath
+        | append $installations
+        | to json | save -f $configPath
+
+    print $"(ansi green_bold)Generated following installations:(ansi reset)"
+    print ($installations | to yaml)
+}
+
+def checkFlathub [packages: list<string>] {
+    $packages | each { |package| 
+        print $"(ansi blue)Checking if package(ansi reset) (ansi default_italic)($package)(ansi reset) (ansi blue)exists on Flathub.(ansi reset)"
+        try {
+            let _ = http get $"https://flathub.org/apps/($package)"
+        } catch {
+            print $"(ansi red_bold)Package(ansi reset) (ansi default_italic)($package)(ansi reset) (ansi red_bold)does not exist on Flathub, which is the specified repository for it to be installed from.(ansi reset)"
+            exit 1
+        }
+        print $"(ansi green)Package found!(ansi reset)"
+    }
+}