feat: implement convert command

crates/aiken-project/src/blueprint/error.rs

@@ -41,3 +41,7 @@ pub enum Error {
         keyword_spend = "spend".if_supports_color(Stdout, |s| s.purple())))]
     ParameterizedValidator { n: usize },
 }
+
+unsafe impl Send for Error {}
+
+unsafe impl Sync for Error {}

crates/aiken/src/cmd/blueprint/convert.rs

@@ -1,4 +1,12 @@
-use std::path::PathBuf;
+use clap::clap_derive::ArgEnum;
+use miette::IntoDiagnostic;
+use serde_json::json;
+use std::{env, fs::File, io::BufReader, path::PathBuf, process};
+
+use aiken_project::{
+    blueprint::{error::Error as BlueprintError, Blueprint},
+    error::Error as ProjectError,
+};
 
 /// Convert a blueprint into other formats.
 #[derive(clap::Args)]
@@ -14,6 +22,15 @@ pub struct Args {
     /// Name of the validator within the module. Optional if there's only one validator.
     #[clap(short, long)]
     validator: Option<String>,
+
+    // Format to convert to
+    #[clap(long, arg_enum, default_value = "cardano-cli")]
+    to: Format,
+}
+
+#[derive(Copy, Clone, ArgEnum)]
+pub enum Format {
+    CardanoCli,
 }
 
 pub fn exec(
@@ -21,7 +38,75 @@ pub fn exec(
         directory,
         module,
         validator,
+        to,
     }: Args,
 ) -> miette::Result<()> {
-    Ok(())
+    let title = module.as_ref().map(|m| {
+        format!(
+            "{m}{}",
+            validator
+                .as_ref()
+                .map(|v| format!(".{v}"))
+                .unwrap_or_default()
+        )
+    });
+
+    let title = title.as_ref().or(validator.as_ref());
+
+    let project_path = if let Some(d) = directory {
+        d
+    } else {
+        env::current_dir().into_diagnostic()?
+    };
+
+    let blueprint_path = project_path.join("plutus.json");
+
+    // Read blueprint
+    let blueprint = File::open(blueprint_path)
+        .map_err(|_| BlueprintError::InvalidOrMissingFile)
+        .into_diagnostic()?;
+
+    let blueprint: Blueprint<serde_json::Value> =
+        serde_json::from_reader(BufReader::new(blueprint)).into_diagnostic()?;
+
+    // Calculate the address
+    let when_too_many =
+        |known_validators| ProjectError::MoreThanOneValidatorFound { known_validators };
+    let when_missing = |known_validators| ProjectError::NoValidatorNotFound { known_validators };
+
+    let result =
+        blueprint.with_validator(title, when_too_many, when_missing, |validator| match to {
+            Format::CardanoCli => {
+                let cbor_bytes = validator.program.to_cbor().unwrap();
+
+                let mut double_cbor_bytes = Vec::new();
+
+                let mut cbor_encoder = pallas_codec::minicbor::Encoder::new(&mut double_cbor_bytes);
+
+                cbor_encoder.bytes(&cbor_bytes).unwrap();
+
+                let cbor_hex = hex::encode(double_cbor_bytes);
+
+                Ok(json!({
+                    "type": "PlutusScriptV2",
+                    "description": "Generated by Aiken",
+                    "cborHex": cbor_hex
+                }))
+            }
+        });
+
+    match result {
+        Ok(value) => {
+            let json = serde_json::to_string_pretty(&value).unwrap();
+
+            println!("{json}");
+
+            Ok(())
+        }
+        Err(err) => {
+            err.report();
+
+            process::exit(1)
+        }
+    }
 }