icepick workflow: it makes a signed transaction!!!

crates/by-chain/icepick-solana/src/lib.rs

@@ -431,7 +431,10 @@ impl Module for Solana {
                     Some((address, decimals)) => serde_json::json!({
                         "blob": {
                             "token_address": address,
-                            "token_decimals": decimals,
+                            // forgive me father, for i have sinned
+                            // see: https://git.distrust.co/public/icepick/issues/26
+                            // TransferToken { decimals: String }
+                            "token_decimals": decimals.to_string(),
                         }
                     }),
                     None => serde_json::json!({

crates/icepick/src/cli/mod.rs

@@ -1,5 +1,6 @@
 use clap::command;
 use icepick_module::help::*;
+use keyfork_derive_util::{request::DerivationAlgorithm, DerivationIndex, DerivationPath};
 use serde::{Deserialize, Serialize};
 use std::{
     collections::HashMap,
@@ -17,6 +18,32 @@ pub fn get_command(bin_name: &str) -> (&str, Vec<&str>) {
     }
 }
 
+pub fn derive_keys(
+    algo: &DerivationAlgorithm,
+    path_prefix: &DerivationPath,
+    accounts: &[DerivationIndex],
+) -> Vec<Vec<u8>> {
+    let mut derived_keys = vec![];
+    let mut client = keyforkd_client::Client::discover_socket().expect("keyforkd started");
+    for account in accounts {
+        let request = keyfork_derive_util::request::DerivationRequest::new(
+            algo.clone(),
+            &path_prefix.clone().chain_push(account.clone()),
+        );
+        let request = keyforkd_models::Request::Derivation(request);
+        let response = client.request(&request).expect("valid derivation");
+        match response {
+            keyforkd_models::Response::Derivation(
+                keyfork_derive_util::request::DerivationResponse { data, .. },
+            ) => {
+                derived_keys.push(data.to_vec());
+            }
+            _ => panic!("Unexpected response"),
+        }
+    }
+    derived_keys
+}
+
 #[derive(Serialize, Deserialize, Debug)]
 struct ModuleConfig {
     name: String,
@@ -159,7 +186,7 @@ pub fn do_cli_thing() {
             .find(|(module, _)| module == module_name)
             .and_then(|(_, workflows)| workflows.iter().find(|x| x.name == workflow_name))
             .expect("workflow from CLI should match config");
-        workflow.handle(matches, commands);
+        workflow.handle(matches, commands, &config.modules);
         return;
     }
 
@@ -219,24 +246,7 @@ pub fn do_cli_thing() {
                     let accounts: Vec<keyfork_derive_util::DerivationIndex> =
                         serde_json::from_value(accounts.clone())
                             .expect("valid derivation_accounts");
-                    let mut client =
-                        keyforkd_client::Client::discover_socket().expect("keyforkd started");
-                    for account in accounts {
-                        let request = keyfork_derive_util::request::DerivationRequest::new(
-                            algo.clone(),
-                            &path.clone().chain_push(account),
-                        );
-                        let request = keyforkd_models::Request::Derivation(request);
-                        let response = client.request(&request).expect("valid derivation");
-                        match response {
-                            keyforkd_models::Response::Derivation(
-                                keyfork_derive_util::request::DerivationResponse { data, .. },
-                            ) => {
-                                derived_keys.push(data.to_vec());
-                            }
-                            _ => panic!("Unexpected response"),
-                        }
-                    }
+                    derived_keys.extend(derive_keys(&algo, &path, &accounts));
                 }
 
                 let json = serde_json::json!({

crates/icepick/src/cli/workflow.rs

@@ -1,8 +1,13 @@
+use keyfork_derive_util::DerivationIndex;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
-use std::collections::{HashMap, HashSet};
+use std::{
+    collections::{HashMap, HashSet},
+    io::Write,
+    process::{Command, Stdio},
+};
 
-use super::{Commands, Operation};
+use super::{derive_keys, get_command, Commands, ModuleConfig, Operation};
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Workflow {
@@ -34,11 +39,61 @@ pub struct WorkflowStep {
 
 #[derive(Clone, Debug)]
 struct InvocableOperation {
+    module: String,
     name: String,
     binary: String,
     operation: Operation,
 }
 
+// TODO: This should probably be migrated to an actual Result type, instead of
+// currently just shoving everything in "blob". Probably done after derivation_accounts
+// gets hoisted out of here.
+#[derive(Serialize, Deserialize)]
+struct OperationResult {
+    // All values returned from an operation.
+    blob: HashMap<String, Value>,
+
+    // Any requested accounts from an operation.
+    //
+    // TODO: Move this to its own step.
+    #[serde(default)]
+    derivation_accounts: Vec<DerivationIndex>,
+}
+
+impl InvocableOperation {
+    fn invoke(&self, input: &HashMap<String, Value>, derived_keys: &[Vec<u8>]) -> OperationResult {
+        let (command, args) = get_command(&self.binary);
+
+        let json = serde_json::json!({
+            "operation": self.operation.name,
+            "values": input,
+            "derived_keys": derived_keys,
+        });
+
+        let mut child = Command::new(command)
+            .args(args)
+            .stdin(Stdio::piped())
+            .stdout(Stdio::piped())
+            .spawn()
+            .unwrap();
+
+        let mut child_input = child.stdin.take().unwrap();
+        serde_json::to_writer(&mut child_input, &json).unwrap();
+        child_input
+            .write_all(b"\n{\"operation\": \"exit\"}\n")
+            .unwrap();
+
+        let result = child.wait_with_output().unwrap();
+        if !result.status.success() {
+            panic!("Bad exit: {}", String::from_utf8_lossy(&result.stderr));
+        }
+
+        let output = result.stdout;
+        let json: OperationResult = serde_json::from_slice(&output).expect("valid json");
+        json
+    }
+}
+
 impl Workflow {
     /// Generate a [`clap::Command`] for a [`Workflow`], where the inputs can be defined either by
     /// command-line arguments or via a JSON input file.
@@ -121,7 +176,78 @@ impl Workflow {
         }
     }
 
-    pub fn handle(&self, matches: &clap::ArgMatches, modules: Commands) {
+    fn run_workflow(
+        &self,
+        mut data: HashMap<String, Value>,
+        operations: &[InvocableOperation],
+        config: &[ModuleConfig],
+    ) {
+        let mut derived_keys = vec![];
+        let mut derivation_accounts = vec![];
+
+        for step in &self.steps {
+            let operation = operations
+                .iter()
+                .find(|op| op.name == step.r#type)
+                .expect("operation matched step type");
+
+            // Load keys from Keyfork, from previously requested workflow
+            let config = config
+                .iter()
+                .find(|module| module.name == operation.module)
+                .expect("could not find module config");
+            let algo = &config.algorithm;
+            let path_prefix = &config.derivation_prefix;
+            derived_keys.extend(derive_keys(algo, path_prefix, &derivation_accounts));
+            derivation_accounts.clear();
+
+            // Prepare all inputs for the operation invocation
+            //
+            // NOTE: this could be .clone().into_iter() but it would create an extra allocation of
+            // the HashMap, and an unnecessary alloc of the key.
+            let inputs: HashMap<String, Value> = data
+                .iter()
+                .map(|(k, v)| (k, v.clone()))
+                .filter_map(|(k, v)| {
+                    // We have our stored name, `k`, which matches with this inner loop's `v`. We
+                    // need to return our desired name, rather than our stored name, and the value
+                    // in our storage, our current `v`.
+                    let (desired, _stored) = step.inputs.iter().find(|(_, v)| k == *v)?;
+                    Some((desired.clone(), v))
+                })
+                .chain(
+                    step.values
+                        .iter()
+                        .map(|(k, v)| (k.clone(), Value::String(v.clone()))),
+                )
+                .collect();
+            let OperationResult {
+                blob,
+                derivation_accounts: new_accounts,
+            } = operation.invoke(&inputs, &derived_keys);
+            derived_keys.clear();
+            derivation_accounts.extend(new_accounts);
+            data.extend(blob.into_iter().filter_map(|(k, v)| {
+                // We have our stored name, `k`, which matches with this inner loop's `v`. We
+                // need to return our desired name, rather than our stored name, and the value
+                // in our storage, our current `v`.
+                let (_given, stored) = step.outputs.iter().find(|(k1, _)| k == **k1)?;
+                Some((stored.clone(), v))
+            }));
+        }
+
+        let last_outputs = &self.steps.last().unwrap().outputs;
+        data.retain(|stored_name, _| {
+            last_outputs
+                .values()
+                .any(|storage_name| stored_name == storage_name)
+        });
+
+        let json_as_str = serde_json::to_string(&data).unwrap();
+        println!("{json_as_str}");
+    }
+
+    pub fn handle(&self, matches: &clap::ArgMatches, modules: Commands, config: &[ModuleConfig]) {
         let inputs = self.load_inputs(matches);
         let data: HashMap<String, Value> = inputs
             .into_iter()
@@ -134,6 +260,7 @@ impl Workflow {
             for operation in module_operations {
                 let operation_name = &operation.name;
                 let io = InvocableOperation {
+                    module: module_name.clone(),
                     name: format!("{module_name}-{operation_name}"),
                     binary: module_binary.clone(),
                     operation: operation.clone(),
@@ -147,6 +274,6 @@ impl Workflow {
             return;
         }
 
-        todo!("Unsimulated transaction!");
+        self.run_workflow(data, &operations, config);
     }
 }

icepick.toml

@@ -40,8 +40,16 @@ inputs = { token= "token_name" }
 # we want to store, and the value is the name to be assigned in storage.
 outputs = { token_address = "token_address", token_decimals = "token_decimals" }
 
+# Get a blockhash
+[[module.workflow.step]]
+type = "sol-get-blockhash"
+
+outputs = { blockhash = "blockhash" }
+
 [[module.workflow.step]]
 # Generate an unsigned Transaction
+# This step MUST run immediately before sol-sign, as in the current version of
+# Icepick, keys are only held in memory in-between a single module invocation.
 type = "sol-transfer-token"
 
 # If using a lot of inputs, it may be best to use a non-inline table.
@@ -59,12 +67,6 @@ from_address = "from_address"
 [module.workflow.step.outputs]
 transaction = "unsigned_transaction"
 
-# Get a blockhash
-[[module.workflow.step]]
-type = "sol-get-blockhash"
-
-outputs = { blockhash = "blockhash" }
-
 # Sign the transaction
 [[module.workflow.step]]
 type = "sol-sign"