tags/
lib.rs

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use hdk::prelude::*;
use tags_integrity::*;

pub mod tags;
pub mod utils;

#[hdk_extern]
pub fn init(_: ()) -> ExternResult<InitCallbackResult> {
    Ok(InitCallbackResult::Pass)
}

#[derive(Serialize, Deserialize, Debug)]
#[serde(tag = "type")]
pub enum Signal {
    // EntryCreated {
    //     action: SignedActionHashed,
    //     app_entry: EntryTypes,
    // },
    // EntryUpdated {
    //     action: SignedActionHashed,
    //     app_entry: EntryTypes,
    //     original_app_entry: EntryTypes,
    // },
    // EntryDeleted {
    //     action: SignedActionHashed,
    //     original_app_entry: EntryTypes,
    // },
    LinkCreated {
        action: SignedActionHashed,
        link_type: LinkTypes,
    },
    LinkDeleted {
        action: SignedActionHashed,
        create_link_action: SignedActionHashed,
        link_type: LinkTypes,
    },
}

#[hdk_extern(infallible)]
pub fn post_commit(committed_actions: Vec<SignedActionHashed>) {
    for action in committed_actions {
        if let Err(err) = signal_action(action) {
            error!("Error signaling new action: {:?}", err);
        }
    }
}

fn signal_action(action: SignedActionHashed) -> ExternResult<()> {
    match action.hashed.content.clone() {
        // Action::Create(_create) => {
        //     if let Ok(Some(app_entry)) = get_entry_for_action(&action.hashed.hash) {
        //         emit_signal(Signal::EntryCreated { action, app_entry })?;
        //     }
        //     Ok(())
        // }
        // Action::Update(update) => {
        //     if let Ok(Some(app_entry)) = get_entry_for_action(&action.hashed.hash) {
        //         if let Ok(Some(original_app_entry)) =
        //             get_entry_for_action(&update.original_action_address)
        //         {
        //             emit_signal(Signal::EntryUpdated {
        //                 action,
        //                 app_entry,
        //                 original_app_entry,
        //             })?;
        //         }
        //     }
        //     Ok(())
        // }
        // Action::Delete(delete) => {
        //     if let Ok(Some(original_app_entry)) = get_entry_for_action(&delete.deletes_address) {
        //         emit_signal(Signal::EntryDeleted {
        //             action,
        //             original_app_entry,
        //         })?;
        //     }
        //     Ok(())
        // }
        Action::CreateLink(create_link) => {
            if let Ok(Some(link_type)) =
                LinkTypes::from_type(create_link.zome_index, create_link.link_type)
            {
                emit_signal(Signal::LinkCreated { action, link_type })?;
            }
            Ok(())
        }
        Action::DeleteLink(delete_link) => {
            let record = get(delete_link.link_add_address.clone(), GetOptions::default())?.ok_or(
                wasm_error!(WasmErrorInner::Guest(
                    "Failed to fetch CreateLink action".to_string()
                )),
            )?;
            match record.action() {
                Action::CreateLink(create_link) => {
                    if let Ok(Some(link_type)) =
                        LinkTypes::from_type(create_link.zome_index, create_link.link_type)
                    {
                        emit_signal(Signal::LinkDeleted {
                            action,
                            link_type,
                            create_link_action: record.signed_action.clone(),
                        })?;
                    }
                    Ok(())
                }
                _ => Err(wasm_error!(WasmErrorInner::Guest(
                    "Create Link should exist".to_string()
                ))),
            }
        }
        _ => Ok(()),
    }
}

// fn get_entry_for_action(action_hash: &ActionHash) -> ExternResult<Option<EntryTypes>> {
//     let record = match get_details(action_hash.clone(), GetOptions::default())? {
//         Some(Details::Record(record_details)) => record_details.record,
//         _ => return Ok(None),
//     };
//     let entry = match record.entry().as_option() {
//         Some(entry) => entry,
//         None => return Ok(None),
//     };
//     let (zome_index, entry_index) = match record.action().entry_type() {
//         Some(EntryType::App(AppEntryDef {
//             zome_index,
//             entry_index,
//             ..
//         })) => (zome_index, entry_index),
//         _ => return Ok(None),
//     };
//     EntryTypes::deserialize_from_type(*zome_index, *entry_index, entry)
// }