Adapt to new trustfall model

Signed-off-by: Marcel Müller <neikos@neikos.email>

crates/plaixt/Cargo.toml

@@ -15,6 +15,7 @@ jiff = "0.1.28"
 kdl.workspace = true
 miette = { version = "7.4.0", features = ["fancy", "syntect-highlighter"] }
 owo-colors = "4.1.0"
+paperless-rs = "0.1.5"
 tokio = { version = "1.43.0", features = ["full"] }
 tokio-stream = { version = "0.1.17", features = ["full"] }
 tracing = "0.1.41"

crates/plaixt/src/adapter/adapter_impl.rs

@@ -0,0 +1,185 @@
+use std::collections::BTreeMap;
+use std::collections::BTreeSet;
+use std::sync::Arc;
+use std::sync::OnceLock;
+
+use paperless_rs::PaperlessClient;
+use trustfall::provider::resolve_coercion_using_schema;
+use trustfall::provider::resolve_property_with;
+use trustfall::provider::AsVertex;
+use trustfall::provider::ContextIterator;
+use trustfall::provider::ContextOutcomeIterator;
+use trustfall::provider::EdgeParameters;
+use trustfall::provider::ResolveEdgeInfo;
+use trustfall::provider::ResolveInfo;
+use trustfall::provider::Typename;
+use trustfall::provider::VertexIterator;
+use trustfall::FieldValue;
+use trustfall::Schema;
+
+use super::vertex::Vertex;
+use crate::parsing::DefinitionKind;
+use crate::parsing::Record;
+
+static SCHEMA: OnceLock<Schema> = OnceLock::new();
+
+#[non_exhaustive]
+pub struct Adapter {
+    schema: Arc<Schema>,
+    records: Vec<Record>,
+    definitions: Arc<BTreeMap<String, BTreeMap<String, DefinitionKind>>>,
+    paperless_client: Option<PaperlessClient>,
+    runtime_handle: tokio::runtime::Handle,
+}
+
+impl std::fmt::Debug for Adapter {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("Adapter").finish_non_exhaustive()
+    }
+}
+
+impl Adapter {
+    pub fn new(
+        schema: Schema,
+        records: Vec<Record>,
+        definitions: BTreeMap<String, BTreeMap<String, DefinitionKind>>,
+        paperless_client: Option<PaperlessClient>,
+        runtime: tokio::runtime::Handle,
+    ) -> Self {
+        Self {
+            schema: Arc::new(schema),
+            records,
+            definitions: Arc::new(definitions),
+            paperless_client,
+            runtime_handle: runtime,
+        }
+    }
+
+    pub const SCHEMA_TEXT: &'static str = include_str!("./schema.graphql");
+
+    pub fn schema() -> &'static Schema {
+        SCHEMA.get_or_init(|| Schema::parse(Self::SCHEMA_TEXT).expect("not a valid schema"))
+    }
+}
+
+impl<'a> trustfall::provider::Adapter<'a> for Adapter {
+    type Vertex = Vertex;
+
+    fn resolve_starting_vertices(
+        &self,
+        edge_name: &Arc<str>,
+        _parameters: &EdgeParameters,
+        resolve_info: &ResolveInfo,
+    ) -> VertexIterator<'a, Self::Vertex> {
+        match edge_name.as_ref() {
+            "Records" => super::entrypoints::records(resolve_info, &self.records),
+            _ => {
+                unreachable!(
+                    "attempted to resolve starting vertices for unexpected edge name: {edge_name}"
+                )
+            }
+        }
+    }
+
+    fn resolve_property<V: AsVertex<Self::Vertex> + 'a>(
+        &self,
+        contexts: ContextIterator<'a, V>,
+        type_name: &Arc<str>,
+        property_name: &Arc<str>,
+        resolve_info: &ResolveInfo,
+    ) -> ContextOutcomeIterator<'a, V, FieldValue> {
+        if property_name.as_ref() == "__typename" {
+            return resolve_property_with(contexts, |vertex| vertex.typename().into());
+        }
+        match type_name.as_ref() {
+            "PaperlessDocument" => super::properties::resolve_paperless_document_property(
+                contexts,
+                property_name.as_ref(),
+                resolve_info,
+            ),
+            "Path" => super::properties::resolve_path_property(
+                contexts,
+                property_name.as_ref(),
+                resolve_info,
+            ),
+            "File" => super::properties::resolve_file_property(
+                contexts,
+                property_name.as_ref(),
+                resolve_info,
+            ),
+            "Directory" => super::properties::resolve_directory_property(
+                contexts,
+                property_name.as_ref(),
+                resolve_info,
+            ),
+            "Record" => {
+                super::properties::resolve_record_property(contexts, property_name, resolve_info)
+            }
+            kind if kind.starts_with("p_") => {
+                super::properties::resolve_record_property(contexts, property_name, resolve_info)
+            }
+            _ => {
+                unreachable!(
+                    "attempted to read property '{property_name}' on unexpected type: {type_name}"
+                )
+            }
+        }
+    }
+
+    fn resolve_neighbors<V: AsVertex<Self::Vertex> + 'a>(
+        &self,
+        contexts: ContextIterator<'a, V>,
+        type_name: &Arc<str>,
+        edge_name: &Arc<str>,
+        parameters: &EdgeParameters,
+        resolve_info: &ResolveEdgeInfo,
+    ) -> ContextOutcomeIterator<'a, V, VertexIterator<'a, Self::Vertex>> {
+        match type_name.as_ref() {
+            "Directory" => super::edges::resolve_directory_edge(
+                contexts,
+                edge_name.as_ref(),
+                parameters,
+                resolve_info,
+            ),
+            kind if kind.starts_with("p_") => super::edges::resolve_record_edge(
+                contexts,
+                edge_name,
+                parameters,
+                resolve_info,
+                &self.definitions,
+            ),
+            _ => {
+                unreachable!(
+                    "attempted to resolve edge '{edge_name}' on unexpected type: {type_name}"
+                )
+            }
+        }
+    }
+
+    fn resolve_coercion<V: AsVertex<Self::Vertex> + 'a>(
+        &self,
+        contexts: ContextIterator<'a, V>,
+        _type_name: &Arc<str>,
+        coerce_to_type: &Arc<str>,
+        _resolve_info: &ResolveInfo,
+    ) -> ContextOutcomeIterator<'a, V, bool> {
+        let schema = self.schema.clone();
+        let coerce_to_type = coerce_to_type.clone();
+
+        Box::new(contexts.map(move |ctx| {
+            let subtypes: BTreeSet<_> = schema
+                .subtypes(coerce_to_type.as_ref())
+                .unwrap_or_else(|| panic!("type {coerce_to_type} is not part of this schema"))
+                .collect();
+
+            match ctx.active_vertex::<Vertex>() {
+                None => (ctx, false),
+                Some(vertex) => {
+                    let typename = vertex.typename();
+                    let can_coerce = subtypes.contains(typename);
+                    (ctx, can_coerce)
+                }
+            }
+        }))
+    }
+}

crates/plaixt/src/adapter/edges.rs

@@ -0,0 +1,85 @@
+use std::collections::BTreeMap;
+use std::sync::Arc;
+
+use trustfall::provider::resolve_neighbors_with;
+use trustfall::provider::AsVertex;
+use trustfall::provider::ContextIterator;
+use trustfall::provider::ContextOutcomeIterator;
+use trustfall::provider::EdgeParameters;
+use trustfall::provider::ResolveEdgeInfo;
+use trustfall::provider::VertexIterator;
+
+use super::Vertex;
+use crate::parsing::DefinitionKind;
+
+pub(super) fn resolve_directory_edge<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    edge_name: &str,
+    _parameters: &EdgeParameters,
+    resolve_info: &ResolveEdgeInfo,
+) -> ContextOutcomeIterator<'a, V, VertexIterator<'a, Vertex>> {
+    match edge_name {
+        "Children" => directory::children(contexts, resolve_info),
+        _ => unreachable!("attempted to resolve unexpected edge '{edge_name}' on type 'Directory'"),
+    }
+}
+
+mod directory {
+    use camino::Utf8Path;
+    use trustfall::provider::resolve_neighbors_with;
+    use trustfall::provider::AsVertex;
+    use trustfall::provider::ContextIterator;
+    use trustfall::provider::ContextOutcomeIterator;
+    use trustfall::provider::ResolveEdgeInfo;
+    use trustfall::provider::VertexIterator;
+
+    use crate::adapter::Vertex;
+
+    pub(super) fn children<'a, V: AsVertex<Vertex> + 'a>(
+        contexts: ContextIterator<'a, V>,
+        _resolve_info: &ResolveEdgeInfo,
+    ) -> ContextOutcomeIterator<'a, V, VertexIterator<'a, Vertex>> {
+        resolve_neighbors_with(contexts, move |vertex| {
+            let vertex = vertex
+                .as_directory()
+                .expect("conversion failed, vertex was not a Directory");
+
+            fn read_children(path: &Utf8Path) -> Option<impl Iterator<Item = Vertex>> {
+                Some(
+                    path.read_dir_utf8()
+                        .ok()?
+                        .flat_map(|item| Some(Vertex::Path(item.ok()?.path().to_path_buf()))),
+                )
+            }
+
+            read_children(vertex)
+                .map(|i| {
+                    let it: Box<dyn Iterator<Item = Vertex>> = Box::new(i);
+                    it
+                })
+                .unwrap_or_else(|| Box::new(std::iter::empty()))
+        })
+    }
+}
+
+pub(super) fn resolve_record_edge<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    edge_name: &Arc<str>,
+    _parameters: &EdgeParameters,
+    _resolve_info: &ResolveEdgeInfo,
+    definitions: &Arc<BTreeMap<String, BTreeMap<String, DefinitionKind>>>,
+) -> ContextOutcomeIterator<'a, V, VertexIterator<'a, Vertex>> {
+    let edge_name = edge_name.clone();
+    let definitions = definitions.clone();
+    resolve_neighbors_with(contexts, move |v| {
+        let rec = v.as_record().expect("Expected a record");
+        let def = &definitions[&rec.kind][edge_name.as_ref()];
+
+        match def {
+            DefinitionKind::Path => Box::new(std::iter::once(Vertex::Path(
+                rec.fields[edge_name.as_ref()].as_string().unwrap().into(),
+            ))),
+            _ => unreachable!("Only `Path` can appear as edge for now"),
+        }
+    })
+}

crates/plaixt/src/adapter/entrypoints.rs

@@ -0,0 +1,16 @@
+use trustfall::provider::ResolveInfo;
+use trustfall::provider::VertexIterator;
+
+use super::vertex::Vertex;
+use crate::parsing::Record;
+
+pub(super) fn records<'a>(
+    _resolve_info: &ResolveInfo,
+    records: &'_ [Record],
+) -> VertexIterator<'a, Vertex> {
+    #[expect(
+        clippy::unnecessary_to_owned,
+        reason = "We have to go through a vec to satisfy the lifetimes"
+    )]
+    Box::new(records.to_vec().into_iter().map(Vertex::Record))
+}

crates/plaixt/src/adapter/mod.rs

@@ -0,0 +1,55 @@
+mod adapter_impl;
+mod edges;
+mod entrypoints;
+mod properties;
+mod vertex;
+
+#[cfg(test)]
+mod tests;
+
+pub use adapter_impl::Adapter;
+use tracing::trace;
+use trustfall::Schema;
+pub use vertex::Vertex;
+
+pub struct CustomVertex {
+    pub name: String,
+    pub definition: String,
+}
+
+impl crate::parsing::Definition {
+    fn to_custom_vertices(&self) -> Vec<CustomVertex> {
+        let name = format!("p_{}", self.name);
+
+        let fields = self
+            .fields
+            .iter()
+            .map(|(fname, ftype)| {
+                let kind = ftype.trustfall_kind(&format!("{name}{fname}"));
+                format!("{fname}: {kind}")
+            })
+            .chain([String::from("_at: String!"), String::from("_kind: String!")])
+            .collect::<Vec<_>>();
+
+        let definition = format!("type {name} implements Record {{ {} }}", fields.join(","));
+
+        [CustomVertex { name, definition }].into_iter().collect()
+    }
+}
+
+pub(crate) fn to_schema(
+    definitions: &std::collections::BTreeMap<String, Vec<crate::parsing::Definition>>,
+) -> trustfall::Schema {
+    let base_text = Adapter::SCHEMA_TEXT;
+
+    let generated = definitions
+        .values()
+        .flat_map(|defs| defs.last().unwrap().to_custom_vertices())
+        .map(|v| v.definition)
+        .collect::<Vec<_>>()
+        .join("\n");
+
+    let input = format!("{base_text}{generated}");
+    trace!(%input, "Using schema");
+    Schema::parse(input).unwrap()
+}

crates/plaixt/src/adapter/properties.rs

@@ -0,0 +1,159 @@
+use std::collections::BTreeMap;
+use std::sync::Arc;
+
+use kdl::KdlValue;
+use paperless_rs::PaperlessClient;
+use trustfall::provider::field_property;
+use trustfall::provider::resolve_property_with;
+use trustfall::provider::AsVertex;
+use trustfall::provider::ContextIterator;
+use trustfall::provider::ContextOutcomeIterator;
+use trustfall::provider::ResolveInfo;
+use trustfall::FieldValue;
+
+use super::vertex::Vertex;
+
+pub(super) fn resolve_path_property<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    property_name: &str,
+    _resolve_info: &ResolveInfo,
+) -> ContextOutcomeIterator<'a, V, FieldValue> {
+    match property_name {
+        "exists" => resolve_property_with(contexts, move |v: &Vertex| {
+            let path = v.as_path().expect("vertex was not a Path");
+
+            path.exists().into()
+        }),
+        "basename" => resolve_property_with(contexts, move |v: &Vertex| {
+            let path = v.as_path().expect("vertex was not a Path");
+
+            path.file_name().into()
+        }),
+        "path" => resolve_property_with(contexts, move |v: &Vertex| {
+            let path = v.as_path().expect("vertex was not a Path");
+
+            path.to_string().into()
+        }),
+        _ => {
+            unreachable!("attempted to read unexpected property '{property_name}' on type 'Path'")
+        }
+    }
+}
+
+pub(super) fn resolve_directory_property<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    property_name: &str,
+    _resolve_info: &ResolveInfo,
+) -> ContextOutcomeIterator<'a, V, FieldValue> {
+    match property_name {
+        "exists" => resolve_property_with(contexts, move |v: &Vertex| {
+            let directory = v.as_directory().expect("vertex was not a Directory");
+
+            directory.exists().into()
+        }),
+        "basename" => resolve_property_with(contexts, move |v: &Vertex| {
+            let directory = v.as_directory().expect("vertex was not a Directory");
+
+            directory.file_name().into()
+        }),
+        "path" => resolve_property_with(contexts, move |v: &Vertex| {
+            let directory = v.as_directory().expect("vertex was not a Directory");
+
+            directory.to_string().into()
+        }),
+        _ => {
+            unreachable!("attempted to read unexpected property '{property_name}' on type 'File'")
+        }
+    }
+}
+
+pub(super) fn resolve_file_property<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    property_name: &str,
+    _resolve_info: &ResolveInfo,
+) -> ContextOutcomeIterator<'a, V, FieldValue> {
+    match property_name {
+        "exists" => resolve_property_with(contexts, move |v: &Vertex| {
+            let file = v.as_file().expect("vertex was not a File");
+
+            file.exists().into()
+        }),
+        "basename" => resolve_property_with(contexts, move |v: &Vertex| {
+            let file = v.as_file().expect("vertex was not a File");
+
+            file.file_name().into()
+        }),
+        "path" => resolve_property_with(contexts, move |v: &Vertex| {
+            let file = v.as_file().expect("vertex was not a File");
+
+            file.to_string().into()
+        }),
+        "extension" => resolve_property_with(contexts, move |v: &Vertex| {
+            let file = v.as_file().expect("vertex was not a File");
+
+            file.extension().into()
+        }),
+        _ => {
+            unreachable!("attempted to read unexpected property '{property_name}' on type 'File'")
+        }
+    }
+}
+
+pub(super) fn resolve_paperless_document_property<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    property_name: &str,
+    _resolve_info: &ResolveInfo,
+) -> ContextOutcomeIterator<'a, V, FieldValue> {
+    match property_name {
+        "added" => resolve_property_with(contexts, field_property!(as_paperless_document, added)),
+        "archive_serial_number" => resolve_property_with(
+            contexts,
+            field_property!(as_paperless_document, archive_serial_number),
+        ),
+        "content" => {
+            resolve_property_with(contexts, field_property!(as_paperless_document, content))
+        }
+        "created" => {
+            resolve_property_with(contexts, field_property!(as_paperless_document, created))
+        }
+        "id" => resolve_property_with(contexts, field_property!(as_paperless_document, id)),
+        "title" => resolve_property_with(contexts, field_property!(as_paperless_document, title)),
+        _ => {
+            unreachable!(
+                "attempted to read unexpected property '{property_name}' on type 'PaperlessDocument'"
+            )
+        }
+    }
+}
+
+pub(super) fn resolve_record_property<'a, V: AsVertex<Vertex> + 'a>(
+    contexts: ContextIterator<'a, V>,
+    property_name: &Arc<str>,
+    _resolve_info: &ResolveInfo,
+) -> ContextOutcomeIterator<'a, V, FieldValue> {
+    let property_name = property_name.clone();
+    match property_name.as_ref() {
+        "_at" => resolve_property_with(
+            contexts,
+            field_property!(as_record, at, { at.to_string().into() }),
+        ),
+        "_kind" => resolve_property_with(contexts, field_property!(as_record, kind)),
+        _ => resolve_property_with(contexts, move |v: &Vertex| {
+            let rec = v
+                .as_record()
+                .expect("Called record property without it being a record");
+
+            kdl_to_trustfall_value(rec.fields[property_name.as_ref()].clone())
+        }),
+    }
+}
+
+fn kdl_to_trustfall_value(val: KdlValue) -> FieldValue {
+    match val {
+        KdlValue::Bool(b) => FieldValue::Boolean(b),
+        KdlValue::Float(f) => FieldValue::Float64(f),
+        KdlValue::Null => FieldValue::Null,
+        KdlValue::Integer(i) => FieldValue::Int64(i.try_into().unwrap()),
+        KdlValue::String(s) => FieldValue::String(s.into()),
+    }
+}

crates/plaixt/src/adapter/schema.graphql

@@ -0,0 +1,88 @@
+schema {
+    query: RootSchemaQuery
+}
+
+directive @filter(
+    """
+    Name of the filter operation to perform.
+    """
+    op: String!
+    """
+    List of string operands for the operator.
+    """
+    value: [String!]
+) repeatable on FIELD | INLINE_FRAGMENT
+directive @tag(
+    """
+    Name to apply to the given property field.
+    """
+    name: String
+) on FIELD
+directive @output(
+    """
+    What to designate the output field generated from this property field.
+    """
+    name: String
+) on FIELD
+directive @optional on FIELD
+directive @recurse(
+    """
+    Recurse up to this many times on this edge. A depth of 1 produces the current
+    vertex and its immediate neighbors along the given edge.
+    """
+    depth: Int!
+) on FIELD
+directive @fold on FIELD
+directive @transform(
+    """
+    Name of the transformation operation to perform.
+    """
+    op: String!
+) on FIELD
+
+
+"""
+All the possible data types to begin querying
+"""
+type RootSchemaQuery {
+    """
+    All records in your plaixt instance
+    """
+    Records: [Record!]!
+}
+
+interface Record {
+    _kind: String!
+    _at: String!
+}
+
+interface Path {
+    path: String!
+    exists: Boolean!
+    basename: String!
+}
+
+interface File implements Path {
+    path: String!
+    exists: Boolean!
+    basename: String!
+
+    extension: String!
+}
+
+type Directory implements Path {
+    path: String!
+    exists: Boolean!
+    basename: String!
+
+    Children: [Path!]!
+}
+
+type PaperlessDocument {
+    id: Int!
+    title: String!
+    content: String!
+    archive_serial_number: Int
+    created: String!
+    added: String!
+}

crates/plaixt/src/adapter/tests.rs

@@ -0,0 +1,16 @@
+use trustfall::provider::check_adapter_invariants;
+
+use super::Adapter;
+
+#[tokio::test]
+async fn adapter_satisfies_trustfall_invariants() {
+    let schema = Adapter::schema();
+    let adapter = Adapter::new(
+        schema.clone(),
+        vec![],
+        [].into(),
+        None,
+        tokio::runtime::Handle::current(),
+    );
+    check_adapter_invariants(schema, adapter);
+}

crates/plaixt/src/adapter/vertex.rs

@@ -0,0 +1,15 @@
+use camino::Utf8PathBuf;
+use paperless_rs::endpoint::documents::Document as PaperlessDocument;
+
+use crate::parsing::Record;
+
+#[non_exhaustive]
+#[derive(Debug, Clone, trustfall::provider::TrustfallEnumVertex)]
+pub enum Vertex {
+    Path(Utf8PathBuf),
+    File(Utf8PathBuf),
+    Directory(Utf8PathBuf),
+
+    PaperlessDocument(PaperlessDocument),
+    Record(Record),
+}

crates/plaixt/src/main.rs

@@ -8,7 +8,6 @@ use camino::Utf8PathBuf;
 use clap::Parser;
 use clap::Subcommand;
 use clap::ValueHint;
-use filesystem_trustfall_adapter::FileSystemAdapter;
 use human_panic::Metadata;
 use miette::IntoDiagnostic;
 use parsing::Definition;
@@ -18,9 +17,9 @@ use tracing_subscriber::EnvFilter;
 use trustfall::execute_query;
 use trustfall::FieldValue;
 
+mod adapter;
 mod config;
 mod parsing;
-mod trustfall_plaixt;
 
 #[derive(Debug, Parser)]
 struct Args {
@@ -97,14 +96,19 @@ async fn main() -> miette::Result<()> {
 fn get_schema_and_adapter(
     definitions: &BTreeMap<String, Vec<Definition>>,
     records: Vec<Record>,
-) -> (trustfall::Schema, trustfall_plaixt::TrustfallMultiAdapter) {
-    let schema = trustfall_plaixt::to_schema(definitions);
-    let adapter = trustfall_plaixt::TrustfallMultiAdapter {
-        plaixt: trustfall_plaixt::PlaixtAdapter {
-            records: records.clone(),
-        },
-        filesystem: FileSystemAdapter::new(),
-    };
+) -> (trustfall::Schema, adapter::Adapter) {
+    let schema = adapter::to_schema(definitions);
+    let definitions = definitions
+        .iter()
+        .map(|(name, def)| (name.clone(), def.last().cloned().unwrap().fields))
+        .collect();
+    let adapter = adapter::Adapter::new(
+        schema.clone(),
+        records,
+        definitions,
+        None,
+        tokio::runtime::Handle::current(),
+    );
     (schema, adapter)
 }
 

crates/plaixt/src/parsing.rs

@@ -1,5 +1,4 @@
 use std::collections::BTreeMap;
-use std::collections::HashMap;
 
 use camino::Utf8Path;
 use camino::Utf8PathBuf;
@@ -15,8 +14,6 @@ use miette::NamedSource;
 use owo_colors::OwoColorize;
 use tokio_stream::wrappers::ReadDirStream;
 
-use crate::trustfall_plaixt::ADAPTER_SEP;
-
 #[derive(Debug, Clone)]
 pub struct Record {
     pub(crate) kind: String,
@@ -155,7 +152,7 @@ pub(crate) async fn load_records(
     Ok(defs)
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub enum DefinitionKind {
     String,
     Path,
@@ -163,11 +160,11 @@ pub enum DefinitionKind {
 }
 
 impl DefinitionKind {
-    pub(crate) fn trustfall_kind(&self) -> String {
+    pub(crate) fn trustfall_kind(&self, _namespace: &str) -> String {
         match self {
-            DefinitionKind::String => String::from("String"),
-            DefinitionKind::Path => format!("fs{ADAPTER_SEP}Path"),
-            DefinitionKind::OneOf(_vecs) => String::from("String"),
+            DefinitionKind::String => String::from("String!"),
+            DefinitionKind::Path => String::from("Path!"),
+            DefinitionKind::OneOf(_vecs) => String::from("String!"),
         }
     }
 
@@ -188,6 +185,23 @@ impl DefinitionKind {
                 .ok_or_else(|| format!("Expected one of: {}", options.join(", "))),
         }
     }
+
+    pub(crate) fn extra_trustfall_kinds(
+        &self,
+        namespace: &str,
+    ) -> Vec<crate::adapter::CustomVertex> {
+        match self {
+            DefinitionKind::OneOf(defs) => {
+                let name = format!("{namespace}Def");
+                let vec = vec![crate::adapter::CustomVertex {
+                    definition: format!("enum {name} {{ {} }}", defs.join(",")),
+                    name,
+                }];
+                vec
+            }
+            _ => vec![],
+        }
+    }
 }
 
 impl TryFrom<&str> for DefinitionKind {
@@ -201,11 +215,11 @@ impl TryFrom<&str> for DefinitionKind {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Definition {
     pub(crate) name: String,
     pub(crate) since: Timestamp,
-    pub(crate) fields: HashMap<String, DefinitionKind>,
+    pub(crate) fields: BTreeMap<String, DefinitionKind>,
 }
 
 pub(crate) fn parse_definition(

crates/plaixt/src/trustfall_plaixt.rs

@@ -1,639 +0,0 @@
-use std::collections::BTreeMap;
-use std::collections::HashMap;
-use std::fmt::Write;
-use std::ops::Not;
-use std::sync::Arc;
-
-use kdl::KdlValue;
-use tracing::debug;
-use tracing::trace;
-use trustfall::provider::field_property;
-use trustfall::provider::resolve_coercion_with;
-use trustfall::provider::resolve_neighbors_with;
-use trustfall::provider::resolve_property_with;
-use trustfall::provider::Adapter;
-use trustfall::provider::AsVertex;
-use trustfall::FieldValue;
-use trustfall::Schema;
-
-use crate::parsing::Definition;
-use crate::parsing::Record;
-
-pub(crate) const ADAPTER_SEP: &str = "__";
-
-#[derive(Debug, Default)]
-pub struct StartingVertex {
-    adapter_name: String,
-    start_vertex_name: String,
-    vertex_type: String,
-}
-
-impl StartingVertex {
-    pub fn new(adapter_name: String, start_vertex_name: String, start_vertex_type: String) -> Self {
-        Self {
-            adapter_name,
-            start_vertex_name,
-            vertex_type: start_vertex_type,
-        }
-    }
-
-    pub fn schema_name(&self) -> String {
-        format!(
-            "{}{ADAPTER_SEP}{}",
-            self.adapter_name, self.start_vertex_name
-        )
-    }
-
-    pub fn vertex_type(&self) -> &str {
-        &self.vertex_type
-    }
-}
-
-#[derive(Debug, Default)]
-pub struct VertexType {
-    adapter_name: String,
-    vertex_name: String,
-    vertex_fields: HashMap<String, String>,
-    implements: Vec<String>,
-}
-
-impl VertexType {
-    pub fn new(
-        adapter_name: String,
-        vertex_name: String,
-        vertex_fields: HashMap<String, String>,
-        implements: Vec<String>,
-    ) -> Self {
-        Self {
-            adapter_name,
-            vertex_name,
-            vertex_fields,
-            implements,
-        }
-    }
-
-    pub fn schema_name(&self) -> String {
-        format!("{}{ADAPTER_SEP}{}", self.adapter_name, self.vertex_name)
-    }
-
-    pub fn schema_type(&self) -> String {
-        format!(
-            r#"type {name} {impls} {{ {fields} }}"#,
-            name = self.schema_name(),
-            impls = self
-                .implements
-                .is_empty()
-                .not()
-                .then(|| format!("implements {}", self.implements.join(" & ")))
-                .unwrap_or_else(String::new),
-            fields = self.vertex_fields.iter().fold(String::new(), |mut out, f| {
-                write!(out, "{}: {}, ", f.0, f.1).unwrap();
-                out
-            }),
-        )
-    }
-}
-
-#[derive(Debug, Default)]
-pub struct DynamicSchema {
-    roots: Vec<StartingVertex>,
-    types: Vec<VertexType>,
-}
-
-impl DynamicSchema {
-    pub fn new() -> Self {
-        Self::default()
-    }
-
-    pub fn add_root(&mut self, root: StartingVertex) {
-        self.roots.push(root);
-    }
-
-    pub fn add_type(&mut self, kind: VertexType) {
-        self.types.push(kind);
-    }
-}
-
-pub(crate) fn to_schema(definitions: &BTreeMap<String, Vec<Definition>>) -> Schema {
-    let mut schema = DynamicSchema::new();
-
-    schema.add_root(StartingVertex::new(
-        "Plaixt".to_string(),
-        "RecordsAll".to_string(),
-        "[Record!]!".to_string(),
-    ));
-
-    for definition in definitions.values().flat_map(|d| d.first()) {
-        let fields = VertexType::new(
-            "Plaixt".to_string(),
-            format!("{}Fields", definition.name),
-            definition
-                .fields
-                .iter()
-                .map(|(name, val)| (name.clone(), format!("{}!", val.trustfall_kind())))
-                .collect(),
-            vec![],
-        );
-        schema.add_type(VertexType::new(
-            "Plaixt".to_string(),
-            definition.name.clone(),
-            [
-                (String::from("at"), String::from("String!")),
-                (String::from("kind"), String::from("String!")),
-                (String::from("fields"), format!("{}!", fields.schema_name())),
-            ]
-            .into(),
-            vec![String::from("Record")],
-        ));
-        schema.add_type(fields);
-    }
-
-    let schema = format!(
-        r#"schema {{
-            query: RootSchemaQuery
-        }}
-        {}
-        type RootSchemaQuery {{
-            {roots}
-            fs{ADAPTER_SEP}Path(path: String!): fs{ADAPTER_SEP}Path!,
-        }}
-        interface Record {{
-            at: String!,
-            kind: String!,
-        }}
-
-        interface fs{ADAPTER_SEP}Path {{
-            path: String!
-        }}
-
-        type fs{ADAPTER_SEP}Folder implements fs{ADAPTER_SEP}Path {{
-            path: String!
-            children: [fs{ADAPTER_SEP}Path!]
-        }}
-
-        type fs{ADAPTER_SEP}File implements fs{ADAPTER_SEP}Path {{
-            path: String!
-            size: Int!
-            extension: String!
-            Hash: String!
-        }}
-
-        {types}
-        "#,
-        Schema::ALL_DIRECTIVE_DEFINITIONS,
-        roots = schema.roots.iter().fold(String::new(), |mut out, r| {
-            write!(out, "{}: {}, ", r.schema_name(), r.vertex_type()).unwrap();
-            out
-        }),
-        types = schema.types.iter().fold(String::new(), |mut out, t| {
-            writeln!(out, "{}", t.schema_type()).unwrap();
-            out
-        }),
-    );
-    trace!(%schema, "Using schema");
-    Schema::parse(schema).unwrap()
-}
-
-pub struct TrustfallMultiAdapter {
-    pub plaixt: PlaixtAdapter,
-    pub filesystem: filesystem_trustfall_adapter::FileSystemAdapter,
-}
-
-#[derive(Debug, Clone)]
-pub enum TrustfallMultiVertex {
-    Plaixt(PlaixtVertex),
-    Filesystem(filesystem_trustfall_adapter::vertex::Vertex),
-}
-
-impl AsVertex<filesystem_trustfall_adapter::vertex::Vertex> for TrustfallMultiVertex {
-    fn as_vertex(&self) -> Option<&filesystem_trustfall_adapter::vertex::Vertex> {
-        self.as_filesystem()
-    }
-
-    fn into_vertex(self) -> Option<filesystem_trustfall_adapter::vertex::Vertex> {
-        self.as_filesystem().cloned()
-    }
-}
-
-impl AsVertex<PlaixtVertex> for TrustfallMultiVertex {
-    fn as_vertex(&self) -> Option<&PlaixtVertex> {
-        self.as_plaixt()
-    }
-
-    fn into_vertex(self) -> Option<PlaixtVertex> {
-        self.as_plaixt().cloned()
-    }
-}
-
-impl TrustfallMultiVertex {
-    pub fn as_plaixt(&self) -> Option<&PlaixtVertex> {
-        if let Self::Plaixt(v) = self {
-            Some(v)
-        } else {
-            None
-        }
-    }
-
-    pub fn as_filesystem(
-        &self,
-    ) -> Option<
-        &<filesystem_trustfall_adapter::FileSystemAdapter as trustfall::provider::Adapter<
-            'static,
-        >>::Vertex,
-    > {
-        if let Self::Filesystem(v) = self {
-            Some(v)
-        } else {
-            None
-        }
-    }
-}
-
-impl<'v> Adapter<'v> for TrustfallMultiAdapter {
-    type Vertex = TrustfallMultiVertex;
-
-    fn resolve_starting_vertices(
-        &self,
-        edge_name: &Arc<str>,
-        parameters: &trustfall::provider::EdgeParameters,
-        resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::VertexIterator<'v, Self::Vertex> {
-        let (adapter_name, edge_name) = edge_name.split_once(ADAPTER_SEP).unwrap();
-
-        trace!(
-            ?adapter_name,
-            ?edge_name,
-            "resolving top-level starting vertex"
-        );
-
-        match adapter_name {
-            "Plaixt" => {
-                let iter = self.plaixt.resolve_starting_vertices(
-                    &Arc::from(edge_name),
-                    parameters,
-                    resolve_info,
-                );
-
-                Box::new(iter.map(TrustfallMultiVertex::Plaixt))
-            }
-            "fs" => {
-                let iter = self.filesystem.resolve_starting_vertices(
-                    &Arc::from(edge_name),
-                    parameters,
-                    resolve_info,
-                );
-
-                Box::new(
-                    iter.inspect(|v| trace!(?v, "Got vertex"))
-                        .map(TrustfallMultiVertex::Filesystem),
-                )
-            }
-            _ => unreachable!(),
-        }
-    }
-
-    fn resolve_property<V>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'v, V>,
-        type_name: &Arc<str>,
-        property_name: &Arc<str>,
-        resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<'v, V, FieldValue>
-    where
-        V: trustfall::provider::AsVertex<Self::Vertex> + 'v,
-    {
-        trace!(?type_name, ?property_name, "resolving top-level property");
-        let (adapter_name, type_name) = type_name
-            .split_once(ADAPTER_SEP)
-            .unwrap_or(("Plaixt", type_name));
-
-        match adapter_name {
-            "Plaixt" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.plaixt.resolve_property(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex())),
-                    ),
-                    &Arc::from(type_name),
-                    property_name,
-                    resolve_info,
-                );
-
-                Box::new(
-                    properties
-                        .into_iter()
-                        .zip(contexts)
-                        .map(|((_ctx, name), og_ctx)| (og_ctx, name)),
-                )
-            }
-            "fs" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.filesystem.resolve_property(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex()))
-                            .inspect(|v| trace!(?v, "Got vertex")),
-                    ),
-                    &Arc::from(type_name),
-                    property_name,
-                    resolve_info,
-                );
-
-                Box::new(
-                    properties
-                        .into_iter()
-                        .zip(contexts)
-                        .map(|((_ctx, name), og_ctx)| (og_ctx, name)),
-                )
-            }
-            _ => unreachable!(),
-        }
-    }
-
-    fn resolve_neighbors<V: trustfall::provider::AsVertex<Self::Vertex> + 'v>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'v, V>,
-        type_name: &Arc<str>,
-        edge_name: &Arc<str>,
-        parameters: &trustfall::provider::EdgeParameters,
-        resolve_info: &trustfall::provider::ResolveEdgeInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<
-        'v,
-        V,
-        trustfall::provider::VertexIterator<'v, Self::Vertex>,
-    > {
-        trace!(?type_name, ?edge_name, "Resolving top-level neighbor");
-        let (adapter_name, type_name) = type_name.split_once(ADAPTER_SEP).unwrap();
-
-        match adapter_name {
-            "Plaixt" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.plaixt.resolve_neighbors(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex())),
-                    ),
-                    &Arc::from(type_name),
-                    edge_name,
-                    parameters,
-                    resolve_info,
-                );
-
-                Box::new(
-                    properties
-                        .into_iter()
-                        .zip(contexts)
-                        .map(|((_ctx, vals), og_ctx)| {
-                            (
-                                og_ctx,
-                                Box::new(vals.map(TrustfallMultiVertex::Plaixt)) as Box<_>,
-                            )
-                        }),
-                )
-            }
-            "fs" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.filesystem.resolve_neighbors(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex())),
-                    ),
-                    &Arc::from(type_name),
-                    edge_name,
-                    parameters,
-                    resolve_info,
-                );
-
-                Box::new(
-                    properties
-                        .into_iter()
-                        .zip(contexts)
-                        .map(|((_ctx, vals), og_ctx)| {
-                            (
-                                og_ctx,
-                                Box::new(
-                                    vals.inspect(|v| trace!(?v, "Got vertex"))
-                                        .map(TrustfallMultiVertex::Filesystem),
-                                ) as Box<_>,
-                            )
-                        }),
-                )
-            }
-            _ => unreachable!(),
-        }
-    }
-
-    fn resolve_coercion<V: trustfall::provider::AsVertex<Self::Vertex> + 'v>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'v, V>,
-        type_name: &Arc<str>,
-        coerce_to_type: &Arc<str>,
-        resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<'v, V, bool> {
-        trace!(?type_name, ?coerce_to_type, "Top-level coerce");
-        let (adapter_name, coerce_to_type) = coerce_to_type.split_once(ADAPTER_SEP).unwrap();
-
-        match adapter_name {
-            "Plaixt" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.plaixt.resolve_coercion(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex())),
-                    ),
-                    type_name,
-                    &Arc::from(coerce_to_type),
-                    resolve_info,
-                );
-
-                Box::new(
-                    properties
-                        .into_iter()
-                        .zip(contexts)
-                        .map(|((_ctx, val), og_ctx)| (og_ctx, val)),
-                )
-            }
-            "fs" => {
-                let contexts = contexts.collect::<Vec<_>>();
-
-                let properties = self.filesystem.resolve_coercion(
-                    Box::new(
-                        contexts
-                            .clone()
-                            .into_iter()
-                            .map(|v| v.flat_map(&mut |v: V| v.into_vertex())),
-                    ),
-                    type_name,
-                    &Arc::from(coerce_to_type),
-                    resolve_info,
-                );
-
-                let type_name = type_name.clone();
-                let coerce_to_type = coerce_to_type.to_string();
-                Box::new(properties.into_iter().zip(contexts).map(
-                    move |((_ctx, allowed), og_ctx)| {
-                        trace!(?allowed, ?type_name, ?coerce_to_type, "Allowed coercion?");
-                        (og_ctx, allowed)
-                    },
-                ))
-            }
-            _ => unreachable!(),
-        }
-    }
-}
-
-pub(crate) struct PlaixtAdapter {
-    pub(crate) records: Vec<Record>,
-}
-
-#[derive(Clone, Debug)]
-pub(crate) enum PlaixtVertex {
-    Record(Record),
-    Fields {
-        name: String,
-        values: BTreeMap<String, KdlValue>,
-    },
-}
-
-impl PlaixtVertex {
-    pub(crate) fn as_fields(&self) -> Option<&BTreeMap<String, KdlValue>> {
-        if let Self::Fields { values, .. } = self {
-            Some(values)
-        } else {
-            None
-        }
-    }
-
-    pub(crate) fn as_record(&self) -> Option<&Record> {
-        if let Self::Record(v) = self {
-            Some(v)
-        } else {
-            None
-        }
-    }
-
-    pub(crate) fn typename(&self) -> String {
-        match self {
-            PlaixtVertex::Record { .. } => "Record".to_string(),
-            PlaixtVertex::Fields { name, .. } => name.clone(),
-        }
-    }
-}
-
-impl<'a> Adapter<'a> for PlaixtAdapter {
-    type Vertex = PlaixtVertex;
-
-    fn resolve_starting_vertices(
-        &self,
-        edge_name: &Arc<str>,
-        _parameters: &trustfall::provider::EdgeParameters,
-        _resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::VertexIterator<'a, Self::Vertex> {
-        trace!(?edge_name, "Resolving start vertex");
-        match edge_name.as_ref() {
-            "RecordsAll" => Box::new(self.records.clone().into_iter().map(PlaixtVertex::Record)),
-            _ => unreachable!(),
-        }
-    }
-
-    fn resolve_property<V: trustfall::provider::AsVertex<Self::Vertex> + 'a>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'a, V>,
-        type_name: &Arc<str>,
-        property_name: &Arc<str>,
-        _resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<'a, V, trustfall::FieldValue> {
-        match (type_name.as_ref(), property_name.as_ref()) {
-            (_, "__typename") => Box::new(contexts.map(|ctx| {
-                let value = match ctx.active_vertex() {
-                    Some(_record) => _record.typename().into(),
-                    None => FieldValue::Null,
-                };
-
-                (ctx, value)
-            })),
-            (_, "at") => resolve_property_with(
-                contexts,
-                field_property!(as_record, at, { at.to_string().into() }),
-            ),
-            (_, "kind") => resolve_property_with(contexts, field_property!(as_record, kind)),
-            (name, field) => {
-                debug!(?name, ?field, "Asking for properties");
-
-                let field = field.to_string();
-                resolve_property_with(contexts, move |vertex| {
-                    trace!(?vertex, ?field, "Getting property");
-                    let fields = vertex.as_fields().unwrap();
-                    match fields.get(&field).unwrap().clone() {
-                        KdlValue::Bool(b) => FieldValue::Boolean(b),
-                        KdlValue::Float(f) => FieldValue::Float64(f),
-                        KdlValue::Null => FieldValue::Null,
-                        KdlValue::Integer(i) => FieldValue::Int64(i.try_into().unwrap()),
-                        KdlValue::String(s) => FieldValue::String(s.into()),
-                    }
-                })
-            }
-        }
-    }
-
-    fn resolve_neighbors<V: trustfall::provider::AsVertex<Self::Vertex> + 'a>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'a, V>,
-        type_name: &Arc<str>,
-        edge_name: &Arc<str>,
-        _parameters: &trustfall::provider::EdgeParameters,
-        _resolve_info: &trustfall::provider::ResolveEdgeInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<
-        'a,
-        V,
-        trustfall::provider::VertexIterator<'a, Self::Vertex>,
-    > {
-        trace!(?type_name, ?edge_name, "Resolving neighbors");
-        match edge_name.as_ref() {
-            "fields" => resolve_neighbors_with(contexts, |c| {
-                Box::new(
-                    c.as_record()
-                        .map(|r| PlaixtVertex::Fields {
-                            name: format!("{}Fields", r.kind),
-                            values: r.fields.clone(),
-                        })
-                        .into_iter(),
-                )
-            }),
-            _ => resolve_neighbors_with(contexts, |c| todo!()),
-            _ => unreachable!("Could not resolve {edge_name}"),
-        }
-    }
-
-    fn resolve_coercion<V: trustfall::provider::AsVertex<Self::Vertex> + 'a>(
-        &self,
-        contexts: trustfall::provider::ContextIterator<'a, V>,
-        type_name: &Arc<str>,
-        coerce_to_type: &Arc<str>,
-        _resolve_info: &trustfall::provider::ResolveInfo,
-    ) -> trustfall::provider::ContextOutcomeIterator<'a, V, bool> {
-        debug!("Asking to coerce {type_name} into {coerce_to_type}");
-        let coerce_to_type = coerce_to_type.clone();
-        resolve_coercion_with(contexts, move |node| {
-            node.as_record()
-                .map(|r| r.kind == *coerce_to_type)
-                .unwrap_or(false)
-        })
-    }
-}

flake.nix

@@ -16,8 +16,17 @@
     };
   };
 
-  outputs = { self, nixpkgs, crane, flake-utils, rust-overlay, ... }:
-    flake-utils.lib.eachDefaultSystem (system:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      crane,
+      flake-utils,
+      rust-overlay,
+      ...
+    }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
       let
         pkgs = import nixpkgs {
           inherit system;
@@ -25,29 +34,51 @@
         };
 
         rustTarget = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
-        unstableRustTarget = pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
-          extensions = [ "rust-src" "miri" "rustfmt" ];
-        });
+        unstableRustTarget = pkgs.rust-bin.selectLatestNightlyWith (
+          toolchain:
+          toolchain.default.override {
+            extensions = [
+              "rust-src"
+              "miri"
+              "rustfmt"
+            ];
+          }
+        );
         craneLib = (crane.mkLib pkgs).overrideToolchain rustTarget;
         unstableCraneLib = (crane.mkLib pkgs).overrideToolchain unstableRustTarget;
 
         tomlInfo = craneLib.crateNameFromCargoToml { cargoToml = ./Cargo.toml; };
-        inherit (tomlInfo) pname version;
+        inherit (tomlInfo) version;
+
         src = ./.;
 
         rustfmt' = pkgs.writeShellScriptBin "rustfmt" ''
           exec "${unstableRustTarget}/bin/rustfmt" "$@"
         '';
 
-        cargoArtifacts = craneLib.buildDepsOnly {
-          inherit src;
-          cargoExtraArgs = "--all-features --all";
+        common = {
+          src = ./.;
+
+          buildInputs = [
+            pkgs.openssl
+            pkgs.pkg-config
+          ];
         };
 
-        plaixt = craneLib.buildPackage {
-          inherit cargoArtifacts src version;
-          cargoExtraArgs = "--all-features --all";
-        };
+        cargoArtifacts = craneLib.buildDepsOnly (
+          common
+          // {
+            cargoExtraArgs = "--all-features --all";
+          }
+        );
+
+        plaixt = craneLib.buildPackage (
+          common
+          // {
+            inherit cargoArtifacts version;
+            cargoExtraArgs = "--all-features --all";
+          }
+        );
 
       in
       rec {
@@ -78,6 +109,8 @@
         devShells.plaixt = pkgs.mkShell {
           buildInputs = [ ];
 
+          inputsFrom = [ plaixt ];
+
           nativeBuildInputs = [
             rustfmt'
             rustTarget