with input objects

crates/dagger-codegen/src/codegen.rs

@@ -9,7 +9,7 @@ use graphql_introspection_query::introspection_response::{
 };
 
 use crate::{
-    handlers::{enumeration::Enumeration, scalar::Scalar, DynHandler, Handlers},
+    handlers::{enumeration::Enumeration, input::Input, scalar::Scalar, DynHandler, Handlers},
     predicates::is_custom_scalar_type,
 };
 
@@ -21,7 +21,11 @@ pub struct CodeGeneration {
 impl CodeGeneration {
     pub fn new() -> Self {
         Self {
-            handlers: vec![Arc::new(Scalar {}), Arc::new(Enumeration {})],
+            handlers: vec![
+                Arc::new(Scalar {}),
+                Arc::new(Enumeration {}),
+                Arc::new(Input {}),
+            ],
         }
     }
 

crates/dagger-codegen/src/handlers/input.rs

@@ -0,0 +1,243 @@
+use genco::prelude::rust;
+use genco::prelude::*;
+use graphql_introspection_query::introspection_response::{FullType, FullTypeInputFields, TypeRef};
+
+use crate::predicates::{
+    is_custom_scalar_type_ref, is_input_object_type, is_list_type, is_required_type_ref,
+    is_scalar_type_ref,
+};
+
+use super::{utility::render_description, Handler};
+
+pub struct Input;
+impl Input {
+    fn render_input_fields(
+        &self,
+        input_fields: &Vec<FullTypeInputFields>,
+    ) -> eyre::Result<Option<rust::Tokens>> {
+        let mut fields: Vec<(String, rust::Tokens)> = vec![];
+        for field in input_fields.iter() {
+            fields.push((
+                field.input_value.name.clone(),
+                self.render_input_field(field)?,
+            ));
+        }
+
+        Ok(Some(quote! {
+            $(for (name, field) in fields => pub $name: $field $['\n'] )
+        }))
+    }
+
+    fn render_input_field(&self, field: &FullTypeInputFields) -> eyre::Result<rust::Tokens> {
+        let name = &field.input_value.name;
+
+        let mut inner: Option<&TypeRef> = None;
+        let inner = &field.input_value.type_;
+        self.render_type_ref(inner)
+    }
+
+    fn render_type_ref(&self, inner: &TypeRef) -> eyre::Result<rust::Tokens> {
+        let extract_of_type = |t: &TypeRef| -> Option<TypeRef> {
+            return t.clone().of_type.map(|t| *t);
+        };
+
+        if !is_required_type_ref(inner) {
+            if let Some(inner_of_type) = extract_of_type(inner) {
+                let inner_field = self.render_type_ref(&inner_of_type)?;
+                return Ok(quote! {
+                    Option<$inner_field>
+                });
+            }
+        }
+
+        if is_list_type(&inner) {
+            if let Some(inner_of_type) = extract_of_type(inner) {
+                let inner_field = self.render_type_ref(&inner_of_type)?;
+                return Ok(quote! {
+                    Vec<$inner_field>
+                });
+            }
+        }
+
+        if is_custom_scalar_type_ref(&inner) {
+            if let Some(inner_of_type) = extract_of_type(inner) {
+                let inner_field = self.render_type_ref(&inner_of_type)?;
+                return Ok(quote! {
+                    $inner_field
+                });
+            }
+        }
+
+        if is_scalar_type_ref(&inner) {
+            let name = match inner.name.as_ref().map(|s| s.as_str()) {
+                Some("ID") => "ID",
+                Some("Int") => "Int",
+                Some("String") => "String",
+                Some("Float") => "Float",
+                Some("Boolean") => "Boolean",
+                Some("Date") => "Date",
+                Some("DateTime") => "DateTime",
+                Some("Time") => "Time",
+                Some("Decimal") => "Decimal",
+                Some(n) => n,
+                _ => eyre::bail!("missing type in the end of chain"),
+            };
+
+            return Ok(quote! {
+                $name
+            });
+        }
+
+        eyre::bail!("could not determine type")
+    }
+}
+
+impl Handler for Input {
+    fn predicate(&self, t: &FullType) -> bool {
+        is_input_object_type(t)
+    }
+
+    fn render(&self, t: &FullType) -> eyre::Result<rust::Tokens> {
+        let name = t
+            .name
+            .as_ref()
+            .ok_or(eyre::anyhow!("could not find name"))?;
+        let description = render_description(t);
+
+        let input = rust::import("dagger_core", "Input");
+
+        let fields = match t.input_fields.as_ref() {
+            Some(i) => self.render_input_fields(i)?,
+            None => None,
+        };
+
+        let out = quote! {
+            $(if description.is_some() => $description)
+            pub struct $name {
+                $(if fields.is_some() => $fields)
+            }
+
+            impl $input for $name {}
+        };
+
+        Ok(out)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use graphql_introspection_query::introspection_response::{
+        FullType, FullTypeFields, FullTypeInputFields, InputValue, TypeRef, __TypeKind,
+    };
+    use pretty_assertions::assert_eq;
+
+    use crate::handlers::Handler;
+
+    use super::Input;
+
+    #[test]
+    fn can_gen_input() {
+        let input = Input {};
+        let t = FullType {
+            kind: Some(__TypeKind::INPUT_OBJECT),
+            name: Some("BuildArg".into()),
+            description: None,
+            input_fields: Some(vec![
+                FullTypeInputFields {
+                    input_value: InputValue {
+                        name: "name".into(),
+                        description: None,
+                        type_: TypeRef {
+                            name: None,
+                            kind: Some(__TypeKind::NON_NULL),
+                            of_type: Some(Box::new(TypeRef {
+                                kind: Some(__TypeKind::SCALAR),
+                                name: Some("String".into()),
+                                of_type: None,
+                            })),
+                        },
+                        default_value: None,
+                    },
+                },
+                FullTypeInputFields {
+                    input_value: InputValue {
+                        name: "value".into(),
+                        description: None,
+                        type_: TypeRef {
+                            name: None,
+                            kind: Some(__TypeKind::NON_NULL),
+                            of_type: Some(Box::new(TypeRef {
+                                kind: Some(__TypeKind::SCALAR),
+                                name: Some("String".into()),
+                                of_type: None,
+                            })),
+                        },
+                        default_value: None,
+                    },
+                },
+            ]),
+            interfaces: None,
+            enum_values: None,
+            possible_types: None,
+            fields: None,
+        };
+
+        let expected = r#"use dagger_core::Input;
+
+pub struct BuildArg {
+    pub name: Option<String>
+
+    pub value: Option<String>
+}
+
+impl Input for BuildArg {}
+"#;
+
+        let output = input.render(&t).unwrap();
+
+        assert_eq!(output.to_file_string().unwrap(), expected);
+    }
+}
+
+const something: &str = r#"
+                {
+                    "description": "",
+                    "enumValues": null,
+                    "fields": null,
+                    "inputFields": [
+                        {
+                            "defaultValue": null,
+                            "description": "",
+                            "name": "name",
+                            "type": {
+                                "kind": "NON_NULL",
+                                "name": null,
+                                "ofType": {
+                                    "kind": "SCALAR",
+                                    "name": "String",
+                                    "ofType": null
+                                }
+                            }
+                        },
+                        {
+                            "defaultValue": null,
+                            "description": "",
+                            "name": "value",
+                            "type": {
+                                "kind": "NON_NULL",
+                                "name": null,
+                                "ofType": {
+                                    "kind": "SCALAR",
+                                    "name": "String",
+                                    "ofType": null
+                                }
+                            }
+                        }
+                    ],
+                    "interfaces": null,
+                    "kind": "INPUT_OBJECT",
+                    "name": "BuildArg",
+                    "possibleTypes": null
+                },
+
+"#;

crates/dagger-codegen/src/handlers/mod.rs

@@ -1,4 +1,5 @@
 pub mod enumeration;
+pub mod input;
 pub mod scalar;
 mod utility;
 
@@ -76,8 +77,12 @@ mod tests {
 
         assert_eq!(
             res.to_string().unwrap(),
-            "pub struct SomeName {} { }
+            "pub struct SomeName {} {
-impl SomeName {} { }"
+
+}
+impl SomeName {} {
+
+}"
             .to_string()
         );
     }

crates/dagger-codegen/src/lib.rs

@@ -15,7 +15,33 @@ mod tests {
     fn can_generate_from_schema() {
         let schema: IntrospectionResponse = serde_json::from_str(INTROSPECTION_QUERY).unwrap();
         let code = CodeGeneration::new().generate(&schema).unwrap();
-        assert_eq!("some-code", code);
+        let expected = "use dagger_core::Scalar;
+
+// code generated by dagger. DO NOT EDIT.
+
+/// A global cache volume identifier.
+pub struct CacheID(Scalar);
+
+/// A content-addressed directory identifier.
+pub struct DirectoryID(Scalar);
+
+/// A file identifier.
+pub struct FileID(Scalar);
+
+/// A unique identifier for a secret.
+pub struct SecretID(Scalar);
+
+/// The platform config OS and architecture in a Container.
+/// The format is [os]/[platform]/[version] (e.g. darwin/arm64/v7, windows/amd64, linux/arm64).
+pub struct Platform(Scalar);
+
+/// A unique container identifier. Null designates an empty container (scratch).
+pub struct ContainerID(Scalar);
+
+/// A content-addressed socket identifier.
+pub struct SocketID(Scalar);
+";
+        assert_eq!(expected, code);
     }
 
     const INTROSPECTION_QUERY: &str = r#"{

crates/dagger-codegen/src/predicates.rs

@@ -1,4 +1,6 @@
-use graphql_introspection_query::introspection_response::{self, FullType};
+use graphql_introspection_query::introspection_response::{
+    self, FullType, FullTypeInputFields, TypeRef, __TypeKind,
+};
 
 use crate::models::Scalars;
 
@@ -9,6 +11,13 @@ pub fn is_scalar_type(t: &FullType) -> bool {
     false
 }
 
+pub fn is_scalar_type_ref(t: &TypeRef) -> bool {
+    if let Some(introspection_response::__TypeKind::SCALAR) = t.kind {
+        return true;
+    }
+    false
+}
+
 pub fn is_enum_type(t: &FullType) -> bool {
     if let Some(introspection_response::__TypeKind::ENUM) = t.kind {
         return true;
@@ -16,6 +25,36 @@ pub fn is_enum_type(t: &FullType) -> bool {
     false
 }
 
+pub fn is_input_object_type(t: &FullType) -> bool {
+    if let Some(introspection_response::__TypeKind::INPUT_OBJECT) = t.kind {
+        return true;
+    }
+    false
+}
+
+pub fn is_required_type(t: &FullTypeInputFields) -> bool {
+    match t.input_value.type_.kind {
+        Some(__TypeKind::NON_NULL) => return false,
+        Some(_) => return true,
+        _ => return false,
+    }
+}
+
+pub fn is_required_type_ref(t: &TypeRef) -> bool {
+    match t.kind {
+        Some(__TypeKind::NON_NULL) => return false,
+        Some(_) => return true,
+        _ => return false,
+    }
+}
+
+pub fn is_list_type(t: &TypeRef) -> bool {
+    if let Some(introspection_response::__TypeKind::LIST) = t.kind {
+        return true;
+    }
+    false
+}
+
 pub fn is_custom_scalar_type(t: &FullType) -> bool {
     if is_scalar_type(t) {
         // TODO: Insert scalar
@@ -35,3 +74,23 @@ pub fn is_custom_scalar_type(t: &FullType) -> bool {
     }
     false
 }
+
+pub fn is_custom_scalar_type_ref(t: &TypeRef) -> bool {
+    if is_scalar_type_ref(t) {
+        // TODO: Insert scalar
+        let _ = match t.name.as_ref().map(|s| s.as_str()) {
+            Some("ID") => Scalars::ID("ID".into()),
+            Some("Int") => Scalars::Int(0),
+            Some("String") => Scalars::String("ID".into()),
+            Some("Float") => Scalars::Float(0.0),
+            Some("Boolean") => Scalars::Boolean(false),
+            Some("Date") => Scalars::Date("ID".into()),
+            Some("DateTime") => Scalars::DateTime("ID".into()),
+            Some("Time") => Scalars::Time("ID".into()),
+            Some("Decimal") => Scalars::Decimal(0.0),
+            Some(_) => return true,
+            None => return false,
+        };
+    }
+    false
+}