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// This file is part of Anagolay Foundation.
// Copyright (C) 2019-2022 Anagolay Foundation.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//! Business logic is located here.
//!
//! Each pallet must have this file.

use super::*;
use sp_std::vec::Vec;

impl<T: Config> Pallet<T> {
  /// Verifies if the package passed as argument is already stored
  ///
  /// # Arguments
  ///  * artifact - The artifact to check
  ///
  /// # Return
  /// True if the artifact is already stored, false otherwise
  pub fn is_existing_artifact(artifact: &AnagolayArtifactStructure<impl ArtifactType>) -> bool {
    match ArtifactsByArtifactId::<T>::try_get().ok() {
      Some(artifacts) => artifacts.contains(&artifact.ipfs_cid),
      None => false,
    }
  }

  /// Store all artifacts passed as parameter.
  ///
  /// Does not do any check.
  ///
  /// # Arguments
  ///  * artifacts - The artifacts to store
  pub fn store_artifacts(artifacts: &Vec<AnagolayArtifactStructure<impl ArtifactType>>) {
    ArtifactsByArtifactId::<T>::mutate(|stored_artifacts| {
      artifacts
        .iter()
        .for_each(|artifact| stored_artifacts.push(artifact.ipfs_cid.clone()));
    });
  }

  /// Retrieve all stored artifacts
  ///
  /// # Return
  /// Collection of artifact Ids
  pub fn get_artifacts() -> Vec<ArtifactId> {
    ArtifactsByArtifactId::<T>::get()
  }
}