chia-generator-parser 0.3.2

use serde::{Deserialize, Serialize};

pub use chia_protocol::{Bytes32, Coin};

// Basic numeric types - use standard Rust types for simplicity
pub type Uint32 = u32;
pub type Uint64 = u64;
pub type Uint128 = u128;

// SerializedProgram placeholder - use Vec<u8> for now
pub type SerializedProgram = Vec<u8>;

/// Block height reference  
pub type BlockHeight = Uint32;

/// Comprehensive parsed block information including all coin data
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ParsedBlock {
    /// Block height
    pub height: u32,

    /// Block weight
    pub weight: String,

    /// Block header hash (hex string for serialization)
    pub header_hash: String,

    /// Block timestamp (optional)
    pub timestamp: Option<u32>,

    /// Coin additions (new coins created)
    pub coin_additions: Vec<CoinInfo>,

    /// Coin removals (coins spent)
    pub coin_removals: Vec<CoinInfo>,

    /// Detailed coin spends (if generator present)
    pub coin_spends: Vec<CoinSpendInfo>,

    /// Coins created by spends (if generator present)
    pub coin_creations: Vec<CoinInfo>,

    /// Whether block has transactions generator
    pub has_transactions_generator: bool,

    /// Generator size in bytes
    pub generator_size: Option<u32>,
}

/// Information about a coin (unspent transaction output)
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CoinInfo {
    /// Parent coin ID (hex string)
    pub parent_coin_info: String,

    /// Puzzle hash (hex string)  
    pub puzzle_hash: String,

    /// Amount in mojos
    pub amount: Uint64,
}

impl CoinInfo {
    pub fn new(parent_coin_info: Bytes32, puzzle_hash: Bytes32, amount: Uint64) -> Self {
        Self {
            parent_coin_info: hex::encode(parent_coin_info),
            puzzle_hash: hex::encode(puzzle_hash),
            amount,
        }
    }

    /// Create from raw bytes
    pub fn from_bytes(parent_coin_info: &[u8], puzzle_hash: &[u8], amount: Uint64) -> Self {
        Self {
            parent_coin_info: hex::encode(parent_coin_info),
            puzzle_hash: hex::encode(puzzle_hash),
            amount,
        }
    }
}

/// Detailed coin spend information with transaction data
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CoinSpendInfo {
    pub coin: CoinInfo,
    pub puzzle_reveal: String,
    pub solution: String,
    pub real_data: bool,
    pub parsing_method: String,
    pub offset: Uint32,
    pub created_coins: Vec<CoinInfo>,
}

impl CoinSpendInfo {
    pub fn new(
        coin: CoinInfo,
        puzzle_reveal: String,
        solution: String,
        real_data: bool,
        parsing_method: String,
        offset: Uint32,
        created_coins: Vec<CoinInfo>,
    ) -> Self {
        Self {
            coin,
            puzzle_reveal,
            solution,
            real_data,
            parsing_method,
            offset,
            created_coins,
        }
    }
}

/// Information about a block's transactions generator
#[derive(Debug, Clone)]
pub struct GeneratorBlockInfo {
    /// Previous block header hash
    pub prev_header_hash: Bytes32,

    /// The transactions generator program (CLVM bytecode)
    pub transactions_generator: Option<SerializedProgram>,

    /// List of block heights that this generator references
    pub transactions_generator_ref_list: Vec<BlockHeight>,
}

impl GeneratorBlockInfo {
    pub fn new(
        prev_header_hash: Bytes32,
        transactions_generator: Option<SerializedProgram>,
        transactions_generator_ref_list: Vec<BlockHeight>,
    ) -> Self {
        Self {
            prev_header_hash,
            transactions_generator,
            transactions_generator_ref_list,
        }
    }
}

/// Information about a block's height and type
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BlockHeightInfo {
    /// Block height
    pub height: Uint32,

    /// Whether this is a transaction block
    pub is_transaction_block: bool,
}

/// Analysis information about a generator's bytecode
#[derive(Debug, Clone)]
pub struct GeneratorAnalysis {
    /// Total size in bytes
    pub size_bytes: usize,
    /// Whether the bytecode is empty
    pub is_empty: bool,
    /// Heuristic: presence of common CLVM opcode patterns
    pub contains_clvm_patterns: bool,
    /// Heuristic: presence of 32-byte sequences typical for coins
    pub contains_coin_patterns: bool,
    /// Shannon entropy estimate
    pub entropy: f64,
}

/// Result of parsing a generator, including basic analysis and block context
#[derive(Debug, Clone)]
pub struct ParsedGenerator {
    pub block_info: GeneratorBlockInfo,
    pub generator_hex: Option<String>,
    pub analysis: GeneratorAnalysis,
}

impl BlockHeightInfo {
    pub fn new(height: Uint32, is_transaction_block: bool) -> Self {
        Self {
            height,
            is_transaction_block,
        }
    }
}