oca-dag 0.4.1-rc.2

Rust implementation of OCA DAG
Documentation 
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use said::version::Encode;
use oca_ast::ast::{self, RefValue};
use oca_bundle::state::oca::{OCABox, OCABundle};
use crate::data_storage::DataStorage;

pub fn build_oca(db: Box<dyn DataStorage>, commands: Vec<ast::Command>) -> Result<OCABundle, String> {
    let mut base: Option<OCABox> = None;
    for command in commands {
        if let ast::CommandType::From = command.kind {
            let said = match command.clone().object_kind.oca_bundle_content() {
                Some(oca_bundle_content) => {
                    match oca_bundle_content.clone().said {
                        ast::ReferenceAttrType::Reference(refs) => {
                            match refs {
                                RefValue::Said(said) => {
                                    said.to_string()
                                },
                                RefValue::Name(_) => {
                                    return Err("Not implemented".to_string())
                                },
                            }
                        },
                    }
                },
                None => return Err("Missing bundle content".to_string())
            };
            let oca_bundle_str = match db.get(&format!("oca.{}", said))? {
                Some(oca_bundle_str) => String::from_utf8(oca_bundle_str).unwrap(),
                None => return Err("OCA not found".to_string())
            };
            let oca_b = serde_json::from_str::<OCABundle>(&oca_bundle_str).unwrap();
            base = Some(oca_b.into());
        } else {
            let result = oca_bundle::build::apply_command(base.clone(), command.clone());
            let mut oca_box: OCABox = OCABox::new();
            match result {
                Ok(oca) => {
                    oca_box = oca;
                },
                Err(errors) => {
                    println!("{:?}", errors);
                }
            };
            let oca_bundle = oca_box.generate_bundle();
            let command_str = serde_json::to_string(&command).unwrap();

            let mut input: Vec<u8> = vec![];
            match base {
                Some(ref mut base) => {
                    let base_said = base.generate_bundle().said.unwrap().to_string();
                    input.push(base_said.as_bytes().len().try_into().unwrap());
                    input.extend(base_said.as_bytes());
                },
                None => {
                    input.push(0);
                }
            }
            input.push(command_str.as_bytes().len().try_into().unwrap());
            input.extend(command_str.as_bytes());
            db.insert(
                &format!("oca.{}.operation", oca_bundle.clone().said.unwrap()),
                &input,
            )?;
            db.insert(
                &format!("oca.{}", oca_bundle.clone().said.unwrap()),
                &oca_bundle.encode().unwrap(),
            )?;

            base = Some(oca_box);
        }
    }

    Ok(base.unwrap().generate_bundle())
}

#[cfg(test)]
mod tests {
    use std::str::FromStr;

    use super::*;
    use indexmap::IndexMap;
    use oca_ast::ast::{CaptureContent, Content, BundleContent};
    use said::SelfAddressingIdentifier;
    use crate::data_storage::{ DataStorage, SledDataStorage };

    #[test]
    #[ignore]
    fn test_ocafile_build() {
        let mut commands = vec![];

        let mut attributes = IndexMap::new();
        attributes.insert("d".to_string(), ast::NestedAttrType::Value(ast::AttributeType::Text));
        attributes.insert("i".to_string(), ast::NestedAttrType::Value(ast::AttributeType::Text));
        attributes.insert("passed".to_string(), ast::NestedAttrType::Value(ast::AttributeType::Boolean));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::CaptureBase( CaptureContent {
                    attributes: Some(attributes),
                    properties: None,
                }),
            }
        );

        let mut properties = IndexMap::new();
        properties.insert("lang".to_string(), ast::NestedValue::Value("en".to_string()));
        properties.insert("name".to_string(), ast::NestedValue::Value("Entrance credential".to_string()));
        properties.insert("description".to_string(), ast::NestedValue::Value("Entrance credential".to_string()));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::Overlay(ast::OverlayType::Meta, Content {
                    attributes: None,
                    properties: Some(properties),
                }),
            }
        );

        let mut attributes = IndexMap::new();
        attributes.insert("d".to_string(), ast::NestedValue::Value("Schema digest".to_string()));
        attributes.insert("i".to_string(), ast::NestedValue::Value("Credential Issuee".to_string()));
        attributes.insert("passed".to_string(), ast::NestedValue::Value("Passed".to_string()));
        let mut properties = IndexMap::new();
        properties.insert("lang".to_string(), ast::NestedValue::Value("en".to_string()));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::Overlay(ast::OverlayType::Label, Content {
                    attributes: Some(attributes),
                    properties: Some(properties),
                }),
            }
        );

        let mut attributes = IndexMap::new();
        attributes.insert("d".to_string(), ast::NestedValue::Value("Schema digest".to_string()));
        attributes.insert("i".to_string(), ast::NestedValue::Value("Credential Issuee".to_string()));
        attributes.insert("passed".to_string(), ast::NestedValue::Value("Enables or disables passing".to_string()));
        let mut properties = IndexMap::new();
        properties.insert("lang".to_string(), ast::NestedValue::Value("en".to_string()));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::Overlay(ast::OverlayType::Information, Content {
                    attributes: Some(attributes),
                    properties: Some(properties),
                }),
            }
        );

        let mut attributes = IndexMap::new();
        attributes.insert("d".to_string(), ast::NestedValue::Value("utf-8".to_string()));
        attributes.insert("i".to_string(), ast::NestedValue::Value("utf-8".to_string()));
        attributes.insert("passed".to_string(), ast::NestedValue::Value("utf-8".to_string()));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::Overlay(ast::OverlayType::CharacterEncoding, Content {
                    attributes: Some(attributes),
                    properties: None,
                }),
            }
        );

        let mut attributes = IndexMap::new();
        attributes.insert("d".to_string(), ast::NestedValue::Value("M".to_string()));
        attributes.insert("i".to_string(), ast::NestedValue::Value("M".to_string()));
        attributes.insert("passed".to_string(), ast::NestedValue::Value("M".to_string()));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::Overlay(ast::OverlayType::Conformance, Content {
                    attributes: Some(attributes),
                    properties: None,
                }),
            }
        );

        let db = SledDataStorage::open("db_test");
        let oca = build_oca(Box::new(db), commands);

        let db_read = SledDataStorage::open("db_test");
        let op = db_read.get(&format!("oca.{}.operation", oca.unwrap().said.unwrap())).unwrap();
        println!("{:?}", String::from_utf8_lossy(&op.unwrap()));
        // println!("{}", serde_json::to_string_pretty(&oca.unwrap()).unwrap());

        // assert_eq!(digests, vec![44, 69, 73, 74, 71, 74, 109, 83, 95, 80, 57, 106, 119, 90, 68, 97, 109, 66, 54, 99, 84, 71, 57, 77, 111, 88, 75, 82, 117, 50, 49, 109, 121, 106, 88, 115, 77, 105, 55, 71, 89, 100, 100, 68, 121])
    }

    #[test]
    #[ignore]
    fn test_ocafile_build_from() {
        let mut commands = vec![];

        let said = SelfAddressingIdentifier::from_str("EF5ERATRBBN_ewEo9buQbznirhBmvrSSC0O2GIR4Gbfs").unwrap();
        let reference = ast::ReferenceAttrType::Reference(RefValue::Said(said));
        commands.push(
            ast::Command {
                kind: ast::CommandType::From,
                object_kind: ast::ObjectKind::OCABundle( BundleContent { said: reference }),
            }
        );

        let mut attributes = IndexMap::new();
        attributes.insert("new".to_string(), ast::NestedAttrType::Value(ast::AttributeType::Text));
        commands.push(
            ast::Command {
                kind: ast::CommandType::Add,
                object_kind: ast::ObjectKind::CaptureBase( CaptureContent {
                    attributes: Some(attributes),
                    properties: None,
                }),
            }
        );

        let db = SledDataStorage::open("db_test");
        let oca = build_oca(Box::new(db), commands);
        println!("{:?}", String::from_utf8(oca.clone().unwrap().encode().unwrap()));

        let db_read = SledDataStorage::open("db_test");
        let op = db_read.get(&format!("oca.{}.operation", oca.unwrap().said.unwrap())).unwrap();
        println!("{:?}", String::from_utf8_lossy(&op.unwrap()));
        // println!("{}", serde_json::to_string_pretty(&oca.unwrap()).unwrap());

        // assert_eq!(digests, vec![44, 69, 73, 74, 71, 74, 109, 83, 95, 80, 57, 106, 119, 90, 68, 97, 109, 66, 54, 99, 84, 71, 57, 77, 111, 88, 75, 82, 117, 50, 49, 109, 121, 106, 88, 115, 77, 105, 55, 71, 89, 100, 100, 68, 121])
    }
}