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// Copyright (c) Mysten Labs, Inc.
// SPDX-License-Identifier: Apache-2.0

use crate::effects::{TransactionEffects, TransactionEvents};
use crate::messages_checkpoint::{CertifiedCheckpointSummary, CheckpointContents};
use crate::object::Object;
use crate::transaction::Transaction;
use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct CheckpointData {
    pub checkpoint_summary: CertifiedCheckpointSummary,
    pub checkpoint_contents: CheckpointContents,
    pub transactions: Vec<CheckpointTransaction>,
}

impl CheckpointData {
    pub fn output_objects(&self) -> Vec<&Object> {
        self.transactions
            .iter()
            .flat_map(|tx| &tx.output_objects)
            .collect()
    }

    pub fn input_objects(&self) -> Vec<&Object> {
        self.transactions
            .iter()
            .flat_map(|tx| &tx.input_objects)
            .collect()
    }

    pub fn all_objects(&self) -> Vec<&Object> {
        self.transactions
            .iter()
            .flat_map(|tx| &tx.input_objects)
            .chain(self.transactions.iter().flat_map(|tx| &tx.output_objects))
            .collect()
    }
}

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct CheckpointTransaction {
    /// The input Transaction
    pub transaction: Transaction,
    /// The effects produced by executing this transaction
    pub effects: TransactionEffects,
    /// The events, if any, emitted by this transaciton during execution
    pub events: Option<TransactionEvents>,
    /// The state of all inputs to this transaction as they were prior to execution.
    pub input_objects: Vec<Object>,
    /// The state of all output objects created or mutated by this transaction.
    pub output_objects: Vec<Object>,
}