miracle-api 0.6.0

use const_crypto::ed25519;
use solana_program::{pubkey, pubkey::Pubkey};

use crate::calculations::{
    calculate_customer_reward, calculate_merchant_reward, calculate_smooth_community_decay,
    calculate_time_decay,
};

// Project Start Time -- Devnet
// Date and time (UTC): Monday, August 15, 2025 12:00:00 AM UTC
// This will be finalized once go-live date is confirmed
pub const START_AT: i64 = 1755216000;

// // Project Start Time -- Mainnet
// // Date and time (UTC): Monday, September 1, 2025 12:00:00 AM UTC
// // This will be finalized once go-live date is confirmed
// pub const START_AT: i64 = 1756684800;

/// Project End Time - The unix timestamp after which mining will stop.
// Date and time (GMT): Wednesday, September 1, 2075 12:00:00 AM UTC
// 50 years from start date for long-term sustainability
pub const END_AT: i64 = 3334521600;

// Test initializer (mac::id.json)
// pub const INITIALIZER_ADDRESS: Pubkey = pubkey!("Ac2ev4ofDx61tuSJCgq9ToSBfVwHD2a1FVJf6p7TAqiB");
// Test initializer (mac&hp::test-id.json)
pub const INITIALIZER_ADDRESS: Pubkey = pubkey!("4ALL9EAVHpv7ioJF95ktDLtrHUEJezPuFxTFFMy3fpSy");

/// The authority allowed to initialize the program.
// pub const INITIALIZER_ADDRESS: Pubkey = pubkey!("staryJacbXodPh4WfwVtgA5jkJhvsMHERtkdttnLEHc");

/// The decimal precision of the Miracle token.
/// There are 10^6 indivisible units per Miracle (called "glows").
pub const TOKEN_DECIMALS: u8 = 6;

/// One Miracle token, denominated in indivisible units.
pub const ONE_MIRACLE: u64 = 10u64.pow(TOKEN_DECIMALS as u32);

/// Ten MIRACLE token
pub const TEN_MIRACLE: u64 = ONE_MIRACLE * 10;

/// The maximum token supply (300 million).
pub const MAX_SUPPLY: u64 = ONE_MIRACLE * 300_000_000;

/// Pool limits for reward distribution (based on MAX_SUPPLY).
/// These ensure proper allocation and prevent over-minting.
pub const PAYMENT_POOL_LIMIT: u64 = MAX_SUPPLY.saturating_mul(67).saturating_div(100); // 201M (67%)
pub const SOCIAL_POOL_LIMIT: u64 = MAX_SUPPLY.saturating_mul(3).saturating_div(100); // 9M (3%)

/// The base daily rewards amount for the payment-based system (before community decay).
/// This is the maximum daily rewards when community health is struggling.
pub const BASE_DAILY_REWARDS: u64 = ONE_MIRACLE * 120_000; // 120k MIRACLE per day

/// The seed of the config account PDA.
pub const CONFIG: &[u8] = b"config";

/// The seed of the metadata account PDA.
pub const METADATA: &[u8] = b"metadata";

/// The seed of the mint account PDA.
pub const MINT: &[u8] = b"mint";

/// The seed of proof account PDAs.
pub const PROOF: &[u8] = b"proof";

/// The seed of the treasury account PDA.
pub const TREASURY: &[u8] = b"treasury";

/// Noise for deriving the mint pda.
// mint noise: Signer-Payer, big-endian: [83, 105, 103, 110, 101, 114, 45, 80, 97, 121, 101, 114]
// #1 MINT ADDRESS: MirakQE19pNhjP71wR7Lr4JoKhbCrqcy5nz9eZpSdqX
// nonce: 2932254387, big-endian: [174, 198, 166, 179]
// #2 MINT ADDRESS: miraBBC187B9GKzL56W1P9v5MiuSnprPwBpFQLQ4WF2
// Nonce: 308643398 (big-endian: [18, 101, 134, 70])
// `Signer-Payer` concat(+) nonce
/// Noise for deriving the mint pda.
pub const MINT_NOISE: [u8; 16] = [
    83, 105, 103, 110, 101, 114, 45, 80, 97, 121, 101, 114, 174, 198, 166, 179,
];

/// The name for token metadata.
pub const METADATA_NAME: &str = "Miracle";

/// The ticker symbol for token metadata.
pub const METADATA_SYMBOL: &str = "MIRACLE";

/// The uri for token metdata.
pub const METADATA_URI: &str =
    "https://github.com/miraland-labs/resources/blob/main/metadata/miracle.json";

/// Genesis hash for epoch 0 (hash of "MIRACLE_EPOCH_0_EXTREME_WAYS")
/// This is the foundation of the entire epoch hash chain
pub const fn miracle_epoch_0_genesis() -> [u8; 32] {
    // Use const_crypto for compile-time hash computation
    // This makes the genesis hash self-documenting and verifiable
    const_crypto::sha2::Sha256::new()
        .update(b"MIRACLE_EPOCH_0_EXTREME_WAYS")
        .finalize()
}

/// Program id for const pda derivations
const PROGRAM_ID: [u8; 32] = unsafe { *(&crate::id() as *const Pubkey as *const [u8; 32]) };

/// The address of the config account.
pub const CONFIG_ADDRESS: Pubkey =
    Pubkey::new_from_array(ed25519::derive_program_address(&[CONFIG], &PROGRAM_ID).0);

/// The address of the mint metadata account.
pub const METADATA_ADDRESS: Pubkey = Pubkey::new_from_array(
    ed25519::derive_program_address(
        &[
            METADATA,
            unsafe { &*(&mpl_token_metadata::ID as *const Pubkey as *const [u8; 32]) },
            unsafe { &*(&MINT_ADDRESS as *const Pubkey as *const [u8; 32]) },
        ],
        unsafe { &*(&mpl_token_metadata::ID as *const Pubkey as *const [u8; 32]) },
    )
    .0,
);

// MI
// MIRACLE MINT ADDRESS: MirakQE19pNhjP71wR7Lr4JoKhbCrqcy5nz9eZpSdqX
/// The address of the mint account.
pub const MINT_ADDRESS: Pubkey =
    Pubkey::new_from_array(ed25519::derive_program_address(&[MINT, &MINT_NOISE], &PROGRAM_ID).0);

/// The bump of the mint account.
pub const MINT_BUMP: u8 = ed25519::derive_program_address(&[MINT, &MINT_NOISE], &PROGRAM_ID).1;

/// The address of the treasury account.
pub const TREASURY_ADDRESS: Pubkey =
    Pubkey::new_from_array(ed25519::derive_program_address(&[TREASURY], &PROGRAM_ID).0);

/// The bump of the treasury account, for cpis.
pub const TREASURY_BUMP: u8 = ed25519::derive_program_address(&[TREASURY], &PROGRAM_ID).1;

/// The address of the treasury token account.
pub const TREASURY_TOKENS_ADDRESS: Pubkey = Pubkey::new_from_array(
    ed25519::derive_program_address(
        &[
            unsafe { &*(&TREASURY_ADDRESS as *const Pubkey as *const [u8; 32]) },
            unsafe { &*(&spl_token::id() as *const Pubkey as *const [u8; 32]) },
            unsafe { &*(&MINT_ADDRESS as *const Pubkey as *const [u8; 32]) },
        ],
        unsafe { &*(&spl_associated_token_account::id() as *const Pubkey as *const [u8; 32]) },
    )
    .0,
);

// ===== PAYMENT-BASED REWARDS SYSTEM CONSTANTS =====

/// Epoch 0 start date: Same as START_AT for consistency
pub const EPOCH_0_START: i64 = START_AT;

/// The duration of a daily epoch, in seconds (24 hours).
pub const EPOCH_DURATION: i64 = 24 * 60 * 60;

/// Maximum merkle proof length for payment proofs (supports ~33M participants).
/// This prevents DoS attacks through extremely long proofs.
pub const MAX_PAYMENT_PROOF_LENGTH: u8 = 25;

/// Maximum merkle proof length for seal proofs (supports ~1M epochs).
/// This prevents DoS attacks through extremely long proofs.
/// Each epoch = 1 day, so this supports ~2,700 years of history.
pub const MAX_SEAL_PROOF_LENGTH: u8 = 20;

/// The seed of the snapshot account PDA.
pub const SNAPSHOT: &[u8] = b"snapshot";

/// The seed of the community metrics account PDA.
pub const METRICS: &[u8] = b"metrics";

/// Basis points for percentage calculations (1 basis point = 0.01%).
pub const BASIS_POINTS: u64 = 10_000;

/// The address of the snapshot account.
pub const SNAPSHOT_ADDRESS: Pubkey =
    Pubkey::new_from_array(ed25519::derive_program_address(&[SNAPSHOT], &PROGRAM_ID).0);

/// The bump of the snapshot account.
pub const SNAPSHOT_BUMP: u8 = ed25519::derive_program_address(&[SNAPSHOT], &PROGRAM_ID).1;

/// The address of the community metrics account.
pub const METRICS_ADDRESS: Pubkey =
    Pubkey::new_from_array(ed25519::derive_program_address(&[METRICS], &PROGRAM_ID).0);

/// The bump of the metrics account.
pub const METRICS_BUMP: u8 = ed25519::derive_program_address(&[METRICS], &PROGRAM_ID).1;

/// Common stablecoin mint addresses.
pub const USDT_MINT: Pubkey = pubkey!("Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB");
pub const USDC_MINT: Pubkey = pubkey!("EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v");
pub const WSOL_MINT: Pubkey = pubkey!("So11111111111111111111111111111111111111112");

// /// The address of the CU-optimized Solana noop program.
// pub const NOOP_PROGRAM_ID: Pubkey = pubkey!("noop8ytexvkpCuqbf6FB89BSuNemHtPRqaNC31GWivW");

// ===== COMMUNITY-DRIVEN DECAY SYSTEM CONSTANTS =====

/// Community Health Targets (now configurable via UpdateTargets instruction)
/// These constants have been moved to Config.community_targets
/// Launch defaults: target_weekly_users = 500, target_weekly_activity = 5_000 (2,500 payments × 2), target_retention_rate = 5000

/// Calculate daily rewards with smooth community decay and time decay.
///
/// ## Formula
/// daily_rewards = BASE_DAILY_REWARDS * community_decay * time_decay / 100_000_000
///
/// ## Parameters
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - Used here for time decay (reduces rewards over time)
///
/// ## Returns
/// - Daily rewards amount in smallest units
/// - Smooth transition from 100% to 60% of base rewards (community decay)
/// - Time decay reduces rewards over 5 years to 10% minimum
///
/// ## Benefits
/// - Replaces binary threshold with smooth function
/// - Eliminates gaming incentives at 80% threshold
/// - Provides fair rewards for all community health levels
/// - Implements time-based decay for sustainable tokenomics
pub fn calculate_daily_rewards(community_score: u16, years_since_launch: u32) -> u64 {
    let community_decay = calculate_smooth_community_decay(community_score) as u128;
    let time_decay = calculate_time_decay(years_since_launch) as u128;
    let base = BASE_DAILY_REWARDS as u128;

    let result = base
        .saturating_mul(community_decay)
        .saturating_mul(time_decay)
        .saturating_div(100_000_000u128);
    result as u64
}

/// Calculate daily rewards split between customers and merchants.
/// This function extends the base daily rewards calculation with customer/merchant allocation.
///
/// ## Formula
/// total_rewards = calculate_daily_rewards(community_score, years_since_launch)
/// customer_pool = total_rewards * customer_reward_share / 10000
/// merchant_pool = total_rewards * merchant_reward_share / 10000
///
/// ## Parameters
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - `customer_reward_share`: Customer reward percentage in basis points (0-10000)
/// - `merchant_reward_share`: Merchant reward percentage in basis points (0-10000)
///
/// - `years_since_launch`: Used here for time decay (reduces rewards over time)
///
/// ## Returns
/// - Tuple of (customer_pool, merchant_pool) in smallest token units
///
/// ## Benefits
/// - Fair allocation between customers and merchants
/// - Oracle-configurable split ratios
/// - Maintains total reward pool integrity
/// - Supports platform evolution with dynamic splits
pub fn calculate_daily_rewards_split(
    community_score: u16,
    years_since_launch: u32,
    customer_reward_share: u16,
    merchant_reward_share: u16,
) -> (u64, u64) {
    // Calculate total daily rewards
    let total_rewards = calculate_daily_rewards(community_score, years_since_launch);

    // Calculate customer pool
    let customer_pool = (total_rewards as u128)
        .saturating_mul(customer_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    // Calculate merchant pool
    let merchant_pool = (total_rewards as u128)
        .saturating_mul(merchant_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    (customer_pool, merchant_pool)
}

/// Calculate time decay factor based on years since launch.
/// This is used for time decay calculations.
///
/// ## Formula
/// time_decay = max(1000, 10000 - years_since_launch * 1800)
///
/// ## Purpose
/// Reduces total rewards over time to ensure sustainable tokenomics.
/// - 0 years: 100% rewards
/// - 5 years: 10% rewards (minimum)
///
/// - `years_since_launch`: Used here for time decay (reduces rewards over time)

/// Complete transparent calculation chain for customer rewards.
/// This function combines all steps of the reward calculation for transparency.
///
/// ## Formula Chain
/// 1. daily_rewards = calculate_daily_rewards(community_score, years_since_launch)
/// 2. customer_pool = daily_rewards * customer_reward_share / 10000
/// 3. customer_reward = (activity_count * customer_pool) / total_customer_activity
///
/// ## Parameters
/// - `activity_count`: Number of activities performed by the customer
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - `customer_reward_share`: Customer reward percentage in basis points (0-10000)
/// - `total_customer_activity`: Total activity count across all customers
///
/// ## Returns
/// - Individual customer reward amount in smallest token units
///
/// ## Benefits
/// - Complete transparency from community metrics to individual rewards
/// - Can be used off-chain for reward estimation
/// - Deterministic calculation for verification
/// - Public formula for user understanding
///
/// ## Note
/// This function does NOT apply activity capping. Use `calculate_customer_reward_transparent_with_cap`
/// for calculations that match on-chain behavior.
pub fn calculate_customer_reward_transparent(
    activity_count: u32,
    community_score: u16,
    years_since_launch: u32,
    customer_reward_share: u16,
    total_customer_activity: u32,
) -> u64 {
    // Step 1: Calculate daily rewards
    let daily_rewards = calculate_daily_rewards(community_score, years_since_launch);

    // Step 2: Calculate customer pool
    let customer_pool = (daily_rewards as u128)
        .saturating_mul(customer_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    // Step 3: Calculate individual reward
    calculate_customer_reward(activity_count, customer_pool, total_customer_activity)
}

/// Complete transparent calculation chain for customer rewards WITH activity capping.
/// This function matches the on-chain calculation behavior exactly.
///
/// ## Formula Chain
/// 1. daily_rewards = calculate_daily_rewards(community_score, years_since_launch)
/// 2. customer_pool = daily_rewards * customer_reward_share / 10000
/// 3. capped_activity = min(activity_count, max_customer_activity_per_epoch)
/// 4. customer_reward = (capped_activity * customer_pool) / total_customer_activity
///
/// ## Parameters
/// - `activity_count`: Number of activities performed by the customer
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - `customer_reward_share`: Customer reward percentage in basis points (0-10000)
/// - `total_customer_activity`: Total activity count across all customers
/// - `max_customer_activity_per_epoch`: Maximum allowed customer activity per epoch
///
/// ## Returns
/// - Individual customer reward amount in smallest token units (with activity capping)
///
/// ## Benefits
/// - Matches on-chain calculation exactly
/// - Includes activity capping to prevent gaming
/// - Complete transparency for off-chain estimation
/// - Deterministic calculation for verification
pub fn calculate_customer_reward_transparent_with_cap(
    activity_count: u32,
    community_score: u16,
    years_since_launch: u32,
    customer_reward_share: u16,
    total_customer_activity: u32,
    max_customer_activity_per_epoch: u32,
) -> u64 {
    // Step 1: Calculate daily rewards
    let daily_rewards = calculate_daily_rewards(community_score, years_since_launch);

    // Step 2: Calculate customer pool
    let customer_pool = (daily_rewards as u128)
        .saturating_mul(customer_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    // Step 3: Apply activity capping
    let capped_activity = activity_count.min(max_customer_activity_per_epoch);

    // Step 4: Calculate individual reward with capped activity
    calculate_customer_reward(capped_activity, customer_pool, total_customer_activity)
}

/// Complete transparent calculation chain for merchant rewards.
/// This function combines all steps of the reward calculation for transparency.
///
/// ## Formula Chain
/// 1. daily_rewards = calculate_daily_rewards(community_score, years_since_launch)
/// 2. merchant_pool = daily_rewards * merchant_reward_share / 10000
/// 3. merchant_reward = (activity_count * merchant_pool) / total_merchant_activity
///
/// ## Parameters
/// - `activity_count`: Number of activities performed by the merchant
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - `merchant_reward_share`: Merchant reward percentage in basis points (0-10000)
/// - `total_merchant_activity`: Total activity count across all merchants
///
/// ## Returns
/// - Individual merchant reward amount in smallest token units
///
/// ## Benefits
/// - Complete transparency from community metrics to individual rewards
/// - Can be used off-chain for reward estimation
/// - Deterministic calculation for verification
/// - Public formula for user understanding
///
/// ## Note
/// This function does NOT apply activity capping. Use `calculate_merchant_reward_transparent_with_cap`
/// for calculations that match on-chain behavior.
pub fn calculate_merchant_reward_transparent(
    activity_count: u32,
    community_score: u16,
    years_since_launch: u32,
    merchant_reward_share: u16,
    total_merchant_activity: u32,
) -> u64 {
    // Step 1: Calculate daily rewards
    let daily_rewards = calculate_daily_rewards(community_score, years_since_launch);

    // Step 2: Calculate merchant pool
    let merchant_pool = (daily_rewards as u128)
        .saturating_mul(merchant_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    // Step 3: Calculate individual reward
    calculate_merchant_reward(activity_count, merchant_pool, total_merchant_activity)
}

/// Complete transparent calculation chain for merchant rewards WITH activity capping.
/// This function matches the on-chain calculation behavior exactly.
///
/// ## Formula Chain
/// 1. daily_rewards = calculate_daily_rewards(community_score, years_since_launch)
/// 2. merchant_pool = daily_rewards * merchant_reward_share / 10000
/// 3. capped_activity = min(activity_count, max_merchant_activity_per_epoch)
/// 4. merchant_reward = (capped_activity * merchant_pool) / total_merchant_activity
///
/// ## Parameters
/// - `activity_count`: Number of activities performed by the merchant
/// - `community_score`: Community health score (0-10000 basis points)
/// - `years_since_launch`: Number of years since project launch (for time decay)
/// - `merchant_reward_share`: Merchant reward percentage in basis points (0-10000)
/// - `total_merchant_activity`: Total activity count across all merchants
/// - `max_merchant_activity_per_epoch`: Maximum allowed merchant activity per epoch
///
/// ## Returns
/// - Individual merchant reward amount in smallest token units (with activity capping)
///
/// ## Benefits
/// - Matches on-chain calculation exactly
/// - Includes activity capping to prevent gaming
/// - Complete transparency for off-chain estimation
/// - Deterministic calculation for verification
pub fn calculate_merchant_reward_transparent_with_cap(
    activity_count: u32,
    community_score: u16,
    years_since_launch: u32,
    merchant_reward_share: u16,
    total_merchant_activity: u32,
    max_merchant_activity_per_epoch: u32,
) -> u64 {
    // Step 1: Calculate daily rewards
    let daily_rewards = calculate_daily_rewards(community_score, years_since_launch);

    // Step 2: Calculate merchant pool
    let merchant_pool = (daily_rewards as u128)
        .saturating_mul(merchant_reward_share as u128)
        .saturating_div(BASIS_POINTS as u128) as u64;

    // Step 3: Apply activity capping
    let capped_activity = activity_count.min(max_merchant_activity_per_epoch);

    // Step 4: Calculate individual reward with capped activity
    calculate_merchant_reward(capped_activity, merchant_pool, total_merchant_activity)
}