feat: create a task model

src/errors/mod.rs

@@ -1,3 +1,4 @@
 pub(crate) mod error;
 pub(crate) mod error_vec;
 pub(crate) mod project_create_error;
+pub(crate) mod task_create_error;

src/errors/task_create_error.rs

@@ -0,0 +1,52 @@
+use crate::errors::error::Error;
+use crate::errors::error_vec::ErrorVec;
+use serde::{Deserialize, Serialize};
+use std::fmt::Display;
+use std::str::FromStr;
+use validator::{ValidationErrors, ValidationErrorsKind};
+
+#[derive(Serialize, Deserialize, Debug)]
+pub enum TaskCreateError {
+    TitleLengthInvalid,
+    ProjectNotFound,
+    Error(Error),
+}
+
+impl From<ValidationErrors> for ErrorVec<TaskCreateError> {
+    fn from(e: ValidationErrors) -> Self {
+        e.errors()
+            .iter()
+            .flat_map(|(&field, error_kind)| match field {
+                "title" => match error_kind {
+                    ValidationErrorsKind::Field(validation_errors) => validation_errors
+                        .iter()
+                        .map(|validation_error| validation_error.code.as_ref())
+                        .map(|code| match code {
+                            "title_length" => TaskCreateError::TitleLengthInvalid,
+                            _ => panic!("Unexpected validation error code: `{code}`."),
+                        })
+                        .collect::<Vec<TaskCreateError>>(),
+                    _ => panic!("Unexpected validation error kind."),
+                },
+                _ => panic!("Unexpected validation field name: `{field}`."),
+            })
+            .collect::<Vec<TaskCreateError>>()
+            .into()
+    }
+}
+
+// has to be implemented for Dioxus server functions
+impl Display for TaskCreateError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{:?}", self)
+    }
+}
+
+// has to be implemented for Dioxus server functions
+impl FromStr for TaskCreateError {
+    type Err = ();
+
+    fn from_str(_: &str) -> Result<Self, Self::Err> {
+        Ok(TaskCreateError::TitleLengthInvalid)
+    }
+}