Issue #8: Add initial sorting based on form dependencies

src/model/data_form.rs

@@ -22,6 +22,7 @@
  * SOFTWARE.
  */
 
+use std::cmp::Ordering;
 use std::collections::HashSet;
 
 use console::style;
@@ -252,9 +253,39 @@ impl Comparable for DataForm {
     fn get_revision(&self) -> u16 {
         self.revision
     }
+
+    fn compare_by_requirement(a: &Self, b: &Self) -> Ordering {
+        if a.get_name() == b.get_name() {
+            return Ordering::Equal;
+        }
+
+        if a.requires_form_reference(&b.get_name()) || a.requires_subform(&b.get_name()) {
+            return Ordering::Greater;
+        }
+
+        Ordering::Less
+    }
 }
 
 impl Requires for DataForm {
+    fn requires_form_reference(&self, name: &str) -> bool {
+        self.entries
+            .entry
+            .iter()
+            .map(|item| item.type_ == "formReference" && item.name == name)
+            .filter(|&it| it)
+            .last()
+            .unwrap_or_default()
+    }
+    fn requires_subform(&self, name: &str) -> bool {
+        self.entries
+            .entry
+            .iter()
+            .map(|item| item.type_ == "subform" && item.name == name)
+            .filter(|&it| it)
+            .last()
+            .unwrap_or_default()
+    }
     fn get_required_entries<'a>(&'a self, all: &'a OnkostarEditor) -> Vec<Requirement> {
         let mut result = self
             .data_catalogues

src/model/mod.rs

@@ -22,10 +22,12 @@
  * SOFTWARE.
  */
 
+use std::cmp::Ordering;
 use std::collections::hash_map::DefaultHasher;
 use std::fmt::Debug;
 use std::hash::{Hash, Hasher};
 
+use crate::model::requirements::Requires;
 use serde::{Deserialize, Serialize};
 
 use crate::profile::{FormField, FormReference, Profile};
@@ -251,6 +253,7 @@ pub trait Listable {
 
 pub trait Sortable {
     fn sorting_key(&self) -> String;
+
     fn sorted(&mut self) -> &Self
     where
         Self: Sized,
@@ -267,6 +270,12 @@ pub trait Comparable: Debug {
         format!("{:?}", self).hash(&mut h);
         h.finish().to_string()
     }
+    fn compare_by_requirement(_: &Self, _: &Self) -> Ordering
+    where
+        Self: Requires,
+    {
+        Ordering::Equal
+    }
 }
 
 pub trait FormEntry {

src/model/onkostar_editor.rs

@@ -233,6 +233,10 @@ impl OnkostarEditor {
             .data_form
             .sort_unstable_by_key(|e| e.sorting_key());
 
+        self.editor
+            .data_form
+            .sort_unstable_by(DataForm::compare_by_requirement);
+
         self.editor.data_form.iter_mut().for_each(|item| {
             item.sorted();
         });
@@ -241,6 +245,10 @@ impl OnkostarEditor {
             .unterformular
             .sort_unstable_by_key(|e| e.sorting_key());
 
+        self.editor
+            .unterformular
+            .sort_unstable_by(Unterformular::compare_by_requirement);
+
         self.editor.unterformular.iter_mut().for_each(|item| {
             item.sorted();
         });

src/model/requirements.rs

@@ -98,6 +98,14 @@ pub trait Requires
 where
     Self: Listable,
 {
+    fn requires_form_reference(&self, _: &str) -> bool {
+        false
+    }
+
+    fn requires_subform(&self, _: &str) -> bool {
+        false
+    }
+
     fn get_required_entries<'a>(&'a self, all: &'a OnkostarEditor) -> Vec<Requirement>;
 
     fn to_requirement_string<'a>(&'a self, all: &'a OnkostarEditor) -> String {

src/model/unterformular.rs

@@ -22,6 +22,7 @@
  * SOFTWARE.
  */
 
+use std::cmp::Ordering;
 use std::collections::HashSet;
 
 use console::style;
@@ -256,9 +257,40 @@ impl Comparable for Unterformular {
     fn get_revision(&self) -> u16 {
         self.revision
     }
+
+    fn compare_by_requirement(a: &Self, b: &Self) -> Ordering {
+        if a.get_name() == b.get_name() {
+            return Ordering::Equal;
+        }
+
+        if a.requires_form_reference(&b.get_name()) || a.requires_subform(&b.get_name()) {
+            return Ordering::Greater;
+        }
+
+        Ordering::Less
+    }
 }
 
 impl Requires for Unterformular {
+    fn requires_form_reference(&self, name: &str) -> bool {
+        self.entries
+            .entry
+            .iter()
+            .map(|item| item.type_ == "formReference" && item.name == name)
+            .filter(|&it| it)
+            .last()
+            .unwrap_or_default()
+    }
+    fn requires_subform(&self, name: &str) -> bool {
+        self.entries
+            .entry
+            .iter()
+            .map(|item| item.type_ == "subform" && item.name == name)
+            .filter(|&it| it)
+            .last()
+            .unwrap_or_default()
+    }
+
     fn get_required_entries<'a>(&'a self, all: &'a OnkostarEditor) -> Vec<Requirement> {
         let mut result = self
             .data_catalogues