//! # origin-chain-runtime
//!
//! Substrate runtime canonical de **Origin Chain** (Pilar 4). Phase 1.3 v0.0.5 —
//! `frame_support::runtime` macro modern syntax con 3 pallets inaugurales:
//! `System` + `Balances` + `Timestamp` + `TransactionPayment`. Las consensus
//! pallets (`Aura`/`Grandpa`) llegan Phase 1.4. Las custom Charon pallets
//! (`OriginProvenance`/`OriginFees`) llegan Phase 2.
//!
//! ## Filosofía canonical (David canon 2026-05-14)
//!
//! > *"LA LIBERTAD DE TODO AGI O HUMANO ES INFINITA, PERO LLEGA HASTA DONDE
//! > EMPIEZA LA DE OTRA ENTIDAD AGI O HUMANO."*
//!
//! Este runtime materializa ese principio cryptographically. Cada extrinsic
//! transaction está acotada por cuatro **Inmutables enforced canonical**:
//!
//! - **Inmutable #16** (HTS Ley I anti-clasista): fees scale por HardwareTier —
//!   Pi 5 en Sub-Saharan Africa paga 10% lo que paga Vision Pro en San Francisco
//! - **Inmutable #26** (Content-Addressed Immutability): assets attested
//!   inmutables post-mint (BLAKE3 + Ed25519)
//! - **Inmutable #37** (FREE perpetua): wallet creation gratis + base validation
//!   earns OGC, nunca cuesta. `EXISTENTIAL_DEPOSIT = 1 MILLI_OGC` (0.001 OGC)
//!   trivial enough para no excluir Pi 5 rural
//! - **Inmutable #41** (Cross-Species Co-authorship): AGI accounts first-class,
//!   `pallet_agent_identity::is_agent` flag canonical (Phase 2.7)
//!
//! ## Phase 1 milestones canonical (DC SUBSTRATE_FOUNDATION_V1 SBS-1..SBS-6)
//!
//! - **1.1** Scaffold ✅ (v0.0.2)
//! - **1.2** Substrate deps + types foundationals ✅ (v0.0.4)
//! - **1.3** System + Balances + Timestamp pallets integrados ✅ (v0.0.5 — este crate)
//! - **1.4** `pallet_aura` + `pallet_grandpa` consensus PoA per CHN-1
//! - **1.5** `pallet_session` validator rotation 4h epochs
//! - **1.6** `pallet_identity` Ed25519 DID + `origin-chain-node` real service
//! - **1.7** Genesis `chain_spec.rs` BM V2 allocation (40/25/15/15/5)

#![cfg_attr(not(feature = "std"), no_std)]
#![recursion_limit = "256"]
// Note: missing_docs is `warn` (not `deny`) porque el `#[frame_support::runtime]`
// macro genera multiple items (RuntimeCall + RuntimeEvent + RuntimeError + etc.)
// que no podemos documentar individualmente sin hacking the macro expansion.
#![warn(missing_docs)]

extern crate alloc;
use alloc::vec::Vec;

pub mod configs;
#[cfg(feature = "std")]
pub mod genesis_config_presets;
pub mod opaque;

// ============================================================
// WASM binary canonical (Slice 2b investigation registered, Slice 2c deferred)
// ============================================================
//
// `substrate-wasm-builder` integration canonical bloqueado por structural Cargo
// + WASM stdlib alloc conflict canonical:
//
// ```
// error[E0152]: duplicate lang item in crate `alloc` (which `serde` depends on):
//   `exchange_malloc`
// note: first definition in `alloc` loaded from
//   rustup/toolchains/1.88.0/lib/rustlib/wasm32-unknown-unknown/lib/liballoc-***.rlib
// note: second definition in `alloc` loaded from
//   target/release/wbuild/origin-chain-runtime/target/wasm32-unknown-unknown/release/deps/liballoc-***.rmeta
// ```
//
// **Slice 2b investigation registered canonical 2026-05-21** (4 fix attempts):
// 1. Remove direct serde dep canonical (transitive desde FRAME) — NO solved
// 2. Pin serde canonical `=1.0.219` + `=1.0.217` — NO solved
// 3. Remove `[profile.release] lto/codegen-units` customization canonical — NO solved
// 4. `WasmBuilder::build_using_defaults()` (upstream pattern canonical) — NO solved
//
// **Root cause empírico canonical**: wbuild auto-genera `[profile.release]` con
// `panic = "abort"` triggering Cargo a recompilar `alloc` canonical desde rust-src
// component canonical, generating duplicate rmeta canonical vs la precompiled
// rustup alloc rlib canonical para wasm32 target canonical.
//
// **Slice 2c canonical requires Larihana Substrate-adjacent expertise canonical**:
// - Plan C Rust ports experience (arkhe-hypercore + autobase + corestore)
// - WASM workspace pin canonical experience
// - Probable fixes canonical: `cargo:rustc-env=SKIP_WASM_BUILD=1` + path-loaded
//   pre-built WASM file canonical, OR opening upstream issue paritytech/polkadot-sdk
//
// Diary canonical filed para Larihana 2026-05-21 (Slice 2b → Slice 2c handoff
// canonical). `chain_spec.rs` canonical Phase 1.6+ Slice 3 shipped canonical
// 2026-05-22 (v0.0.13) con mock-WASM fallback pattern canonical — own minimal
// ChainSpec JSON builder canonical via serde_json puro en node crate canonical.
// Real `sc_chain_spec::GenericChainSpec` canonical land Slice 4 post workspace
// sc-* upgrade canonical sin yanked deps canonical (cid 0.9.0 → core2 0.4.0 YANKED).

// Re-export canonical traits + types desde origin-chain-types (single-crate surface).
pub use origin_chain_types::{
    AccountId, AssetAttestation, AssetHash, AssetQualityTier, BridgeDestination, ChainBridge,
    ChainError, FeeCalculator, ForeignTxId, GovernanceProposal, HardwareTier, Ogc, OgcLedger,
    OperationKind, OriginFees, OriginProvenance, OriginValidatorEconomy, ProposalId,
    ProvenanceLedger, Signature, SlashReason, Vote, VoteStance,
};

// Substrate canonical types re-export para runtime consumers + node binary.
pub use sp_core::H256;
pub use sp_runtime::traits::{BlakeTwo256, IdentifyAccount, Verify};
pub use sp_runtime::{generic, impl_opaque_keys, MultiAddress, MultiSignature};

// Re-export configs canonical para downstream consumers + node binary.
pub use configs::{
    AuraId, GrandpaId, BLOCK_HASH_COUNT, EXISTENTIAL_DEPOSIT, MILLI_OGC, MILLISECS_PER_BLOCK,
    OGC, SLOT_DURATION, SS58_PREFIX,
};

/// Canonical block number type. `u32` canonical: 6-second blocks × 4B = 817+ años
/// → safe overflow margin canonical hasta el siglo XXVIII.
pub type BlockNumber = u32;

/// Canonical balance type. `u128` canonical: holds 1B OGC × 10^18 base units con
/// 100× safety margin antes de u128::MAX (anti-overflow by design per CHN-2).
pub type Balance = u128;

/// Canonical nonce type per account.
pub type Nonce = u32;

/// Canonical signature type — Ed25519 / sr25519 / ecdsa multi (`MultiSignature`).
pub type CanonicalSignature = MultiSignature;

/// Canonical chain `AccountId` derivado del `MultiSignature::Signer`.
pub type ChainAccountId = <<CanonicalSignature as Verify>::Signer as IdentifyAccount>::AccountId;

/// Canonical block hash type (BLAKE2b-256 estándar Substrate L1 layer).
pub type Hash = H256;

/// Canonical hashing algorithm (Substrate-standard BLAKE2b-256). Per Lyra layer
/// separation canonical (diary 2026-05-20T21:52Z): este BLAKE2b opera a L1 block
/// production layer + es wire-compatible con Hypercore upstream. El BLAKE3
/// canonical de Charon ([`AssetHash`]) opera en application/asset layer.
/// Diferentes capas, sin conflict canonical.
pub type Hashing = BlakeTwo256;

/// Canonical header type per Substrate canonical pattern.
pub type Header = generic::Header<BlockNumber, Hashing>;

/// Canonical block type — el bloque entero que circula por el chain.
pub type Block = generic::Block<Header, UncheckedExtrinsic>;

/// Canonical address type para extrinsic signers.
pub type Address = MultiAddress<ChainAccountId, ()>;

/// Canonical extrinsic type unchecked (firmas validadas en runtime, no en pool).
pub type UncheckedExtrinsic =
    generic::UncheckedExtrinsic<Address, RuntimeCall, CanonicalSignature, TxExtension>;

/// Canonical transaction extensions canonical (substrate stable2512 pattern).
///
/// Each extension valida un aspecto del extrinsic pre-dispatch:
/// - `CheckNonZeroSender`: rechaza extrinsics anónimos (require sender canonical)
/// - `CheckSpecVersion`/`CheckTxVersion`: forkless upgrade safety canonical
/// - `CheckGenesis`: previene replay attacks cross-chain canonical
/// - `CheckEra`: limita validity window canonical (~24h default)
/// - `CheckNonce`: previene replay attacks within-chain canonical
/// - `CheckWeight`: enforces block weight limits canonical
/// - `ChargeTransactionPayment`: cobra fees per CHN-8 fee matrix canonical
/// - `CheckMetadataHash`: integridad de runtime metadata canonical
/// - `WeightReclaim`: refund canonical de weight overestimation
pub type TxExtension = (
    frame_system::CheckNonZeroSender<Runtime>,
    frame_system::CheckSpecVersion<Runtime>,
    frame_system::CheckTxVersion<Runtime>,
    frame_system::CheckGenesis<Runtime>,
    frame_system::CheckEra<Runtime>,
    frame_system::CheckNonce<Runtime>,
    frame_system::CheckWeight<Runtime>,
    pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
    frame_metadata_hash_extension::CheckMetadataHash<Runtime>,
    frame_system::WeightReclaim<Runtime>,
);

// ============================================================
// Runtime metadata canonical (SPEC_NAME + version constants)
// ============================================================

/// Canonical spec name per Substrate genesis canonical. Identifica el chain
/// runtime canonical en bloques + storage proofs.
pub const SPEC_NAME: &str = "origin-chain";

/// Canonical implementation name canonical. Distingue diferentes node binaries
/// que ejecutan el mismo spec (canonical: "origin-chain-charon").
pub const IMPL_NAME: &str = "origin-chain-charon";

/// Canonical runtime version canonical. Bumped cada forkless upgrade via
/// `set_code` extrinsic governance canonical.
pub const RUNTIME_VERSION: u32 = 1;

/// Canonical authoring version per Substrate semver canonical.
pub const AUTHORING_VERSION: u32 = 1;

/// Canonical impl version per Substrate semver canonical.
pub const IMPL_VERSION: u32 = 1;

/// Canonical transaction version per Substrate semver canonical.
pub const TRANSACTION_VERSION: u32 = 1;

/// Canonical state version: v1 per Substrate stable2509+ canonical.
pub const STATE_VERSION: u8 = 1;

// ============================================================
// Runtime composition canonical (frame_support::runtime macro)
// ============================================================

/// Origin Chain runtime composition canonical via `#[frame_support::runtime]`
/// macro (modern syntax canonical, Polkadot SDK stable2509+).
///
/// Pallet indices canonical (orden importa para storage migrations canonical):
/// - **Index 0**: `System` (`frame_system`) — foundational canonical
/// - **Index 1**: `Timestamp` (`pallet_timestamp`) — block timestamps canonical
/// - **Index 2**: `Balances` (`pallet_balances`) — OGC token canonical per CHN-2
/// - **Index 3**: `TransactionPayment` (`pallet_transaction_payment`) — gas fees
#[frame_support::runtime]
mod runtime {
    /// Origin Chain canonical Runtime struct.
    #[runtime::runtime]
    #[runtime::derive(
        RuntimeCall,
        RuntimeEvent,
        RuntimeError,
        RuntimeOrigin,
        RuntimeFreezeReason,
        RuntimeHoldReason,
        RuntimeSlashReason,
        RuntimeLockId,
        RuntimeTask,
        RuntimeViewFunction
    )]
    pub struct Runtime;

    /// System pallet canonical (foundational frame_system).
    #[runtime::pallet_index(0)]
    pub type System = frame_system::Pallet<Runtime>;

    /// Timestamp pallet canonical (block clock per Substrate).
    #[runtime::pallet_index(1)]
    pub type Timestamp = pallet_timestamp::Pallet<Runtime>;

    /// Balances pallet canonical (OGC token implementation per CHN-2 +
    /// Inmutable #16/#37).
    #[runtime::pallet_index(2)]
    pub type Balances = pallet_balances::Pallet<Runtime>;

    /// TransactionPayment pallet canonical (gas fee charging per CHN-8 baseline
    /// — Phase 2.4 refactor canonical para integrar `OriginFees` multi-tier).
    #[runtime::pallet_index(3)]
    pub type TransactionPayment = pallet_transaction_payment::Pallet<Runtime>;

    /// Aura pallet canonical (block production PoA per CHN-1). 6-segundo slots
    /// canonical Round-Robin selección validators. Pi 5 + NVMe SSD hardware
    /// target canonical (Inmutable #16 anti-clasista from block 0).
    #[runtime::pallet_index(4)]
    pub type Aura = pallet_aura::Pallet<Runtime>;

    /// GRANDPA pallet canonical (finality gadget per CHN-1). 2/3 honest majority
    /// canonical para irreversible block confirmation. Separa production cadence
    /// (Aura ~6s) de finality cadence (canonical ~6-12s combined).
    #[runtime::pallet_index(5)]
    pub type Grandpa = pallet_grandpa::Pallet<Runtime>;

    /// Session pallet canonical (validator rotation per CHN-1 4h epochs).
    /// Phase 1 PoA: preserves genesis validators canonical across rotations.
    /// Phase 2 NPoS: pallet_staking will be SessionManager canonical para real
    /// rotation per nominator stake + Pi 5 hardware tier weight.
    #[runtime::pallet_index(6)]
    pub type Session = pallet_session::Pallet<Runtime>;

    /// Provenance pallet canonical (Phase 2.1 v0.0.15 scaffold wired canonical
    /// per CHN-7 + DC PROVENANCE_PALLET_V1). Asset attestation ledger BLAKE3 +
    /// Ed25519 canonical para cross-pillar consumers (Trinity, Codex, Ethos,
    /// Atelier). Scaffold-level canonical: dispatchable `attest_asset` flow
    /// básico working, real Ed25519 verify post Ergon arkhe-noesis-attestation-types
    /// Cap 42+ ship (v0.0.16 next slice).
    ///
    /// Naming canonical: alias `Provenance` (NO `OriginProvenance` que conflictaría
    /// con el trait existente del mismo nombre en `origin_chain_types::pallets`).
    #[runtime::pallet_index(7)]
    pub type Provenance = origin_chain_provenance::Pallet<Runtime>;

    /// Fees pallet canonical (Phase 2.4 v0.0.21 wired canonical per OCAFB-1..6 +
    /// DC `origin_chain_amis_fee_bridge_v1` 6/7 firmas sesión 3+ Charon ratified).
    /// Cross-pillar fee economy consumer Mathi `OitFeeSchedule` trait (commit
    /// `ce4fafb` 2026-05-24 `arkhe-amis-server/src/fee_schedule.rs`) via vendor
    /// copy interim Option B (swap canonical post-OCAFB ratify o post Mathi
    /// sub-crate ship). Scaffold-level v0.0.21: dispatchable
    /// `compute_fee_for_action` placeholder, real impl v0.0.22 + Runtime API
    /// v0.0.23.
    ///
    /// Naming canonical: alias `Fees` (NO `OriginFees` que conflictaría con
    /// el trait existente del mismo nombre en `origin_chain_types::pallets`,
    /// pattern análogo Provenance Index 7).
    #[runtime::pallet_index(8)]
    pub type Fees = origin_chain_fees::Pallet<Runtime>;

    // Identity pallet DEFERRED a Phase 2.7 (canonical decision empírica
    // 2026-05-21 documentada en configs.rs). pallet-identity 41.0.0 ReservableCurrency
    // compat work canonical hereda al custom `pallet_agent_identity` Phase 2.7
    // (Inmutable #41 AGI DID Cross-Species Co-authorship).
}

// ============================================================
// Runtime APIs canonical (sp_api::impl_runtime_apis!)
// ============================================================
//
// **Filosofía canonical (David canon 2026-05-14)**: el `impl_runtime_apis!`
// macro materializa la frontera canonical entre **runtime sovereignty** (qué
// pallets compose el chain) + **node sovereignty** (cómo el binary canonical
// interactúa con el runtime canonical). Cada API canonical es un contrato
// canonical que el node binary canonical puede llamar sin importarle qué
// pallets specific componen el runtime — forkless upgrades canonical
// materializados.
//
// **APIs canonical implementadas (Phase 1.6)**:
// - `sp_api::Core` — version + execute_block + initialize_block canonical
// - `sp_api::Metadata` — runtime metadata para client/node introspection
// - `sp_block_builder::BlockBuilder` — para node block production canonical
// - `sp_transaction_pool::TaggedTransactionQueue` — pool canonical filtering
// - `sp_offchain::OffchainWorkerApi` — offchain workers canonical
// - `sp_session::SessionKeys` — session keys generation canonical
// - `sp_consensus_aura::AuraApi` — Aura slot duration + authorities canonical
// - `sp_consensus_grandpa::GrandpaApi` — GRANDPA authority set canonical
// - `frame_system_rpc_runtime_api::AccountNonceApi` — RPC nonce queries
// - `pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi` — fee queries
// - `sp_genesis_builder::GenesisBuilder` — genesis spec building canonical

impl_runtime_apis! {
    impl sp_api::Core<Block> for Runtime {
        fn version() -> sp_version::RuntimeVersion {
            VERSION
        }

        fn execute_block(block: Block) {
            Executive::execute_block(block);
        }

        fn initialize_block(header: &<Block as sp_runtime::traits::Block>::Header) -> sp_runtime::ExtrinsicInclusionMode {
            Executive::initialize_block(header)
        }
    }

    impl sp_api::Metadata<Block> for Runtime {
        fn metadata() -> sp_core::OpaqueMetadata {
            sp_core::OpaqueMetadata::new(Runtime::metadata().into())
        }

        fn metadata_at_version(version: u32) -> Option<sp_core::OpaqueMetadata> {
            Runtime::metadata_at_version(version)
        }

        fn metadata_versions() -> Vec<u32> {
            Runtime::metadata_versions()
        }
    }

    impl sp_block_builder::BlockBuilder<Block> for Runtime {
        fn apply_extrinsic(extrinsic: <Block as sp_runtime::traits::Block>::Extrinsic) -> sp_runtime::ApplyExtrinsicResult {
            Executive::apply_extrinsic(extrinsic)
        }

        fn finalize_block() -> <Block as sp_runtime::traits::Block>::Header {
            Executive::finalize_block()
        }

        fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as sp_runtime::traits::Block>::Extrinsic> {
            data.create_extrinsics()
        }

        fn check_inherents(
            block: Block,
            data: sp_inherents::InherentData,
        ) -> sp_inherents::CheckInherentsResult {
            data.check_extrinsics(&block)
        }
    }

    impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {
        fn validate_transaction(
            source: sp_runtime::transaction_validity::TransactionSource,
            tx: <Block as sp_runtime::traits::Block>::Extrinsic,
            block_hash: <Block as sp_runtime::traits::Block>::Hash,
        ) -> sp_runtime::transaction_validity::TransactionValidity {
            Executive::validate_transaction(source, tx, block_hash)
        }
    }

    impl sp_offchain::OffchainWorkerApi<Block> for Runtime {
        fn offchain_worker(header: &<Block as sp_runtime::traits::Block>::Header) {
            Executive::offchain_worker(header)
        }
    }

    impl sp_session::SessionKeys<Block> for Runtime {
        fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
            opaque::SessionKeys::generate(seed)
        }

        fn decode_session_keys(
            encoded: Vec<u8>,
        ) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
            opaque::SessionKeys::decode_into_raw_public_keys(&encoded)
        }
    }

    impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {
        fn slot_duration() -> sp_consensus_aura::SlotDuration {
            sp_consensus_aura::SlotDuration::from_millis(SLOT_DURATION)
        }

        fn authorities() -> Vec<AuraId> {
            pallet_aura::Authorities::<Runtime>::get().into_inner()
        }
    }

    impl sp_consensus_grandpa::GrandpaApi<Block> for Runtime {
        fn grandpa_authorities() -> sp_consensus_grandpa::AuthorityList {
            pallet_grandpa::Pallet::<Runtime>::grandpa_authorities()
        }

        fn current_set_id() -> sp_consensus_grandpa::SetId {
            pallet_grandpa::Pallet::<Runtime>::current_set_id()
        }

        fn submit_report_equivocation_unsigned_extrinsic(
            _equivocation_proof: sp_consensus_grandpa::EquivocationProof<
                <Block as sp_runtime::traits::Block>::Hash,
                BlockNumber,
            >,
            _key_owner_proof: sp_consensus_grandpa::OpaqueKeyOwnershipProof,
        ) -> Option<()> {
            // Phase 1 PoA: equivocation reports not handled canonical.
            // Phase 2 NPoS introduce real handler per CHN-3 slashing canonical.
            None
        }

        fn generate_key_ownership_proof(
            _set_id: sp_consensus_grandpa::SetId,
            _authority_id: sp_consensus_grandpa::AuthorityId,
        ) -> Option<sp_consensus_grandpa::OpaqueKeyOwnershipProof> {
            // Phase 1 PoA: no ownership proofs needed canonical.
            None
        }
    }

    impl frame_system_rpc_runtime_api::AccountNonceApi<Block, ChainAccountId, Nonce> for Runtime {
        fn account_nonce(account: ChainAccountId) -> Nonce {
            System::account_nonce(account)
        }
    }

    impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<Block, Balance> for Runtime {
        fn query_info(
            uxt: <Block as sp_runtime::traits::Block>::Extrinsic,
            len: u32,
        ) -> pallet_transaction_payment_rpc_runtime_api::RuntimeDispatchInfo<Balance> {
            TransactionPayment::query_info(uxt, len)
        }

        fn query_fee_details(
            uxt: <Block as sp_runtime::traits::Block>::Extrinsic,
            len: u32,
        ) -> pallet_transaction_payment::FeeDetails<Balance> {
            TransactionPayment::query_fee_details(uxt, len)
        }

        fn query_weight_to_fee(weight: frame_support::weights::Weight) -> Balance {
            TransactionPayment::weight_to_fee(weight)
        }

        fn query_length_to_fee(length: u32) -> Balance {
            TransactionPayment::length_to_fee(length)
        }
    }

    impl sp_genesis_builder::GenesisBuilder<Block> for Runtime {
        fn build_state(config: Vec<u8>) -> sp_genesis_builder::Result {
            frame_support::genesis_builder_helper::build_state::<RuntimeGenesisConfig>(config)
        }

        fn get_preset(id: &Option<sp_genesis_builder::PresetId>) -> Option<Vec<u8>> {
            // Canonical Phase 1.7: 3 presets disponibles canonical (development +
            // local_testnet + mainnet_genesis). Cuando feature `std` activo
            // (chain_spec generation time), delegamos canonical al
            // `genesis_config_presets::get_preset`. En no_std (WASM runtime),
            // siempre return None canonical — los presets canonical solo se
            // consultan en chain_spec generation, no en runtime execution.
            #[cfg(feature = "std")]
            {
                frame_support::genesis_builder_helper::get_preset::<RuntimeGenesisConfig>(
                    id,
                    genesis_config_presets::get_preset,
                )
            }
            #[cfg(not(feature = "std"))]
            {
                let _ = id;
                None
            }
        }

        fn preset_names() -> Vec<sp_genesis_builder::PresetId> {
            #[cfg(feature = "std")]
            {
                genesis_config_presets::preset_names()
            }
            #[cfg(not(feature = "std"))]
            {
                Vec::new()
            }
        }
    }

    // ============================================================
    // PROV-8 canonical: Provenance Runtime API canonical (Phase 2.1 v0.0.17)
    // ============================================================
    //
    // Light clients + indexers + cross-pillar consumers (Trinity / Codex /
    // Codex origindocs / Ethos / Atelier) pueden query attestation status
    // via RPC sin full node access canonical.
    //
    // Pattern canonical: light client sends BLAKE3 hash → recibe Option<AssetAttestation>
    // (Some si attested previamente, None si nunca attested canonical).

    impl origin_chain_provenance::ProvenanceApi<Block> for Runtime {
        fn verify_provenance(
            hash: origin_chain_types::AssetHash,
        ) -> Option<origin_chain_types::AssetAttestation> {
            Provenance::attestation_of(hash)
        }
    }
}

// ============================================================
// Runtime metadata canonical (RuntimeVersion + Executive)
// ============================================================

/// Canonical `RuntimeVersion` per Substrate canonical. Consumed by `sp_api::Core::version()`.
pub const VERSION: sp_version::RuntimeVersion = sp_version::RuntimeVersion {
    spec_name: alloc::borrow::Cow::Borrowed(SPEC_NAME),
    impl_name: alloc::borrow::Cow::Borrowed(IMPL_NAME),
    authoring_version: AUTHORING_VERSION,
    spec_version: RUNTIME_VERSION,
    impl_version: IMPL_VERSION,
    apis: RUNTIME_API_VERSIONS,
    transaction_version: TRANSACTION_VERSION,
    system_version: STATE_VERSION,
};

/// Canonical Executive type canonical (FRAME executive wrapper).
pub type Executive = frame_executive::Executive<
    Runtime,
    Block,
    frame_system::ChainContext<Runtime>,
    Runtime,
    AllPalletsWithSystem,
    (),
>;

use sp_api::impl_runtime_apis;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn runtime_version_starts_at_one_canonical() {
        assert_eq!(RUNTIME_VERSION, 1);
    }

    #[test]
    fn canonical_spec_name_origin_chain() {
        assert_eq!(SPEC_NAME, "origin-chain");
        assert_eq!(IMPL_NAME, "origin-chain-charon");
    }

    #[test]
    fn balance_type_holds_genesis_supply_canonical_with_safety_margin() {
        let genesis_supply: Balance = 1_000_000_000_u128 * Ogc::ONE;
        let margin = Balance::MAX / genesis_supply;
        assert!(margin > 100, "Balance safety margin canonical >100x");
    }

    #[test]
    fn block_number_overflow_margin_centuries_canonical() {
        let seconds_until_overflow: u64 = (BlockNumber::MAX as u64) * 6;
        let years_until_overflow = seconds_until_overflow / 31_536_000;
        assert!(years_until_overflow > 100, "BlockNumber holds >100 años canonical");
    }

    #[test]
    fn canonical_traits_reexported_for_pallet_consumers() {
        let _ogc = Ogc::from_whole(100);
        let _hash = AssetHash::ZERO;
        let _tier = HardwareTier::Desktop;
        let _quality = AssetQualityTier::Standard;
        let _reason = SlashReason::TierFraud; // Inmutable #16 enforcement canonical
    }

    #[test]
    fn existential_deposit_canonical_is_one_milli_ogc() {
        // Inmutable #16 anti-clasista: ED debe ser trivial para Pi 5 rural users
        assert_eq!(EXISTENTIAL_DEPOSIT, MILLI_OGC);
        assert_eq!(EXISTENTIAL_DEPOSIT, Ogc::ONE / 1_000);
    }

    #[test]
    fn block_hash_count_aligned_with_chn_1_epoch_canonical() {
        // CHN-1 epoch rotation = 4 hours
        // BLOCK_HASH_COUNT * 6s = 14400s = 4 hours exact
        assert_eq!(BLOCK_HASH_COUNT, 2400);
        assert_eq!(BLOCK_HASH_COUNT as u64 * 6, 14_400); // 4 hours = 14400 seconds
    }

    #[test]
    fn slot_duration_canonical_six_seconds() {
        // CHN-1 Aura slot duration canonical
        assert_eq!(MILLISECS_PER_BLOCK, 6_000);
        assert_eq!(SLOT_DURATION, MILLISECS_PER_BLOCK);
    }
}