// file: crates/ksp-interface-lib/tests/public_api.rs
// version: 4

//! Integration canaries for the public `ksp-interface-lib` foundation.

fn consume_pubkey(pubkey: ksp_interface_lib::Pubkey) -> [u8; 32] {
    return pubkey.to_bytes();
}

#[test]
fn public_pre_002_pubkey_contract_is_available_from_crate_root() {
    let pubkey = ksp_interface_lib::Pubkey::default();
    assert_eq!(consume_pubkey(pubkey), [0_u8; 32]);
    return;
}

#[test]
fn public_pre_003_account_meta_and_limit_contracts_are_available_from_crate_root() {
    let pubkey = ksp_interface_lib::Pubkey::new_from_array([3_u8; 32]);
    let readonly = ksp_interface_lib::ProgramAccountMeta::readonly(pubkey, true);
    let writable = ksp_interface_lib::ProgramAccountMeta::writable(pubkey, false);
    assert_eq!(readonly.pubkey(), &pubkey);
    assert!(readonly.is_signer());
    assert!(!readonly.is_writable());
    assert_eq!(writable.pubkey(), &pubkey);
    assert!(!writable.is_signer());
    assert!(writable.is_writable());
    assert_eq!(ksp_interface_lib::MAX_PROGRAM_INSTRUCTION_ACCOUNTS, 255);
    return;
}

#[test]
fn public_pre_003_interface_error_code_is_stable_and_core_owned() {
    let code: ksp_core_lib::ErrorCode = ksp_interface_lib::ERROR_CODE_PROGRAM_INSTRUCTION_LIMIT_EXCEEDED;
    assert_eq!(code.domain(), "interface");
    assert_eq!(code.code(), "program_instruction_limit_exceeded");
    return;
}

#[test]
fn public_pre_004_program_instruction_contract_is_available_from_crate_root() {
    let program_id = ksp_interface_lib::Pubkey::new_from_array([4_u8; 32]);
    let account = ksp_interface_lib::ProgramAccountMeta::readonly(ksp_interface_lib::Pubkey::new_from_array([5_u8; 32]), true);
    let instruction = ksp_interface_lib::ProgramInstruction::try_new(program_id, std::vec![account], std::vec![1_u8, 2, 3]);
    assert!(instruction.is_ok());
    let instruction = match instruction {
        std::result::Result::Ok(value) => value,
        std::result::Result::Err(_) => return,
    };
    assert_eq!(instruction.program_id(), &program_id);
    assert_eq!(instruction.accounts(), &[account]);
    assert_eq!(instruction.data(), &[1_u8, 2, 3]);
    assert_eq!(ksp_interface_lib::MAX_PROGRAM_INSTRUCTION_DATA_LEN, 10_240);
    return;
}

#[test]
fn public_pre_005_limit_error_is_observable_without_private_module_access() {
    let program_id = ksp_interface_lib::Pubkey::new_from_array([0xC1_u8; 32]);
    let rejected = ksp_interface_lib::ProgramInstruction::try_new(
        program_id,
        std::vec::Vec::new(),
        std::vec![0xC2_u8; ksp_interface_lib::MAX_PROGRAM_INSTRUCTION_DATA_LEN + 1],
    );
    assert!(rejected.is_err());
    let error = match rejected {
        std::result::Result::Err(value) => value,
        std::result::Result::Ok(_) => return,
    };
    assert_eq!(error.code(), ksp_interface_lib::ERROR_CODE_PROGRAM_INSTRUCTION_LIMIT_EXCEEDED);
    assert_eq!(error.context().len(), 3);
    assert_eq!(error.context()[0].key(), "field");
    assert_eq!(error.context()[0].value(), "data");
    assert_eq!(error.context()[1].key(), "actual_len");
    assert_eq!(error.context()[1].value(), "10241");
    assert_eq!(error.context()[2].key(), "maximum_len");
    assert_eq!(error.context()[2].value(), "10240");
    return;
}