#include <map>
#include <set>
#include <string>
#include <vector>
#ifndef HOOKENUM_INCLUDED
#define HOOKENUM_INCLUDED 1
namespace ripple {
enum HookSetOperation : int8_t {
    hsoINVALID = -1,
    hsoNOOP = 0,
    hsoCREATE = 1,
    hsoINSTALL = 2,
    hsoDELETE = 3,
    hsoNSDELETE = 4,
    hsoUPDATE = 5
};

enum HookSetFlags : uint8_t {
    hsfOVERRIDE = 0b00000001U,  // override or delete hook
    hsfNSDELETE = 0b00000010U,  // delete namespace
    hsfCOLLECT = 0b00000100U,   // allow collect calls on this hook
};

enum HookEmissionFlags : uint16_t {
    hefSTRONG = 0x1,
    hefCALLBACK = 0x2,
    hefDOAAW = 0x4,
};
}  // namespace ripple

namespace hook {
// RH TODO: put these somewhere better, and allow rules to be fed in
inline uint32_t
maxHookParameterKeySize(void)
{
    return 32;
}

inline uint32_t
maxHookParameterValueSize(void)
{
    return 256;
}

inline uint32_t
maxHookStateDataSize(void)
{
    return 256U;
}

inline uint32_t
maxHookWasmSize(void)
{
    return 0xFFFFU;
}

inline uint32_t
maxHookChainLength(void)
{
    return 10;
}

inline uint32_t
maxNamespaces(void)
{
    return 256;
}

enum TSHFlags : uint8_t {
    tshNONE = 0b000,
    tshROLLBACK = 0b001,
    tshCOLLECT = 0b010,
    tshMIXED = 0b100,
};

namespace log {
/*
 * Hook log-codes are not necessarily errors. Each type of Hook log line
 * contains a code in round parens like so: HookSet(5)[rAcc...]: message The
 * log-code gives an external tool an easy way to handle and report the status
 * of a hook to end users and developers.
 */
enum hook_log_code : uint16_t {
    /* HookSet log-codes */
    AMENDMENT_DISABLED =
        1,            // attempt to HookSet when amendment is not yet enabled.
    API_ILLEGAL = 2,  // HookSet object contained HookApiVersion for existing
                      // HookDefinition
    API_INVALID =
        3,  // HookSet object contained HookApiVersion for unrecognised hook API
    API_MISSING =
        4,  // HookSet object did not contain HookApiVersion but should have
    BLOCK_ILLEGAL = 5,  // a block end instruction moves execution below depth 0
                        // {{}}`}` <= like this
    CALL_ILLEGAL = 6,   // wasm tries to call a non-whitelisted function
    CALL_INDIRECT =
        7,            // wasm used call indirect instruction which is disallowed
    CREATE_FLAG = 8,  // create operation requires hsfOVERRIDE flag
    DELETE_FIELD = 9,     //
    DELETE_FLAG = 10,     // delete operation requires hsfOVERRIDE flag
    DELETE_NOTHING = 11,  // delete operation would delete nothing
    EXPORTS_MISSING =
        12,  // hook did not export *any* functions (should be cbak, hook)
    EXPORT_CBAK_FUNC =
        13,  // hook did not export correct func def int64_t cbak(uint32_t)
    EXPORT_HOOK_FUNC =
        14,  // hook did not export correct func def int64_t hook(uint32_t)
    EXPORT_MISSING =
        15,  // distinct from export*S*_missing, either hook or cbak is missing
    FLAGS_INVALID = 16,  // HookSet flags were invalid for specified operation
    FUNCS_MISSING = 17,  // hook did not include function code for any functions
    FUNC_PARAM_INVALID = 18,  // parameter types may only be i32 i64 u32 u64
    FUNC_RETURN_COUNT = 19,   // a function type is defined in the wasm which
                              // returns > 1 return value
    FUNC_RETURN_INVALID =
        20,  // a function type does not return i32 i64 u32 or u64
    FUNC_TYPELESS =
        21,  // hook defined hook/cbak but their type is not defined in wasm
    FUNC_TYPE_INVALID =
        22,             // malformed and illegal wasm in the func type section
    GRANTS_EMPTY = 23,  // HookSet object contained an empty grants array (you
                        // should remove it)
    GRANTS_EXCESS =
        24,  // HookSet object cotnained a grants array with too many grants
    GRANTS_FIELD =
        25,  // HookSet object contained a grant without Authorize or HookHash
    GRANTS_ILLEGAL = 26,  // Hookset object contained grants array which
                          // contained a non Grant object
    GUARD_IMPORT = 27,    // guard import is missing
    GUARD_MISSING = 28,   // guard call missing at top of loop
    GUARD_PARAMETERS =
        29,  // guard called but did not use constant expressions for params
    HASH_OR_CODE =
        30,  // HookSet object can contain only one of CreateCode and HookHash
    HOOKON_MISSING =
        31,  // HookSet object did not contain HookOn but should have
    HOOKS_ARRAY_BAD =
        32,  // attempt to HookSet with a Hooks array containing a non-Hook obj
    HOOKS_ARRAY_BLANK = 33,    // all hook set objs were blank
    HOOKS_ARRAY_EMPTY = 34,    // attempt to HookSet with an empty Hooks array
    HOOKS_ARRAY_MISSING = 35,  // attempt to HookSet without a Hooks array
    HOOKS_ARRAY_TOO_BIG = 36,  // attempt to HookSet with a Hooks array beyond
                               // the chain size limit
    HOOK_ADD = 37,             // Informational: adding ltHook to directory
    HOOK_DEF_MISSING = 38,  // attempt to reference a hook definition (by hash)
                            // that is not on ledger
    HOOK_DELETE = 39,       // unable to delete ltHook from owner
    HOOK_INVALID_FIELD =
        40,  // HookSetObj contained an illegal/unexpected field
    HOOK_PARAMS_COUNT =
        41,                // hookset obj would create too many hook parameters
    HOOK_PARAM_SIZE = 42,  // hookset obj sets a parameter or value that exceeds
                           // max allowable size
    IMPORTS_MISSING = 43,  // hook must import guard, and accept/rollback
    IMPORT_ILLEGAL = 44,   // attempted import of a non-whitelisted function
    IMPORT_MODULE_BAD =
        45,  // hook attempted to specify no or a bad import module
    IMPORT_MODULE_ENV =
        46,  // hook attempted to specify import module not named env
    IMPORT_NAME_BAD = 47,  // import name was too short or too long
    INSTALL_FLAG = 48,     // install operation requires hsoOVERRIDE
    INSTALL_MISSING = 49,  // install operation specifies hookhash which doesn't
                           // exist on the ledger
    INSTRUCTION_COUNT =
        50,  // worst case execution instruction count as computed by HookSet
    INSTRUCTION_EXCESS =
        51,            // worst case execution instruction count was too large
    MEMORY_GROW = 52,  // memory.grow instruction is present but disallowed
    NAMESPACE_MISSING = 53,  // HookSet object lacked HookNamespace
    NSDELETE = 54,           // Informational: a namespace is being deleted
    NSDELETE_ACCOUNT =
        55,  // nsdelete tried to delete ns from a non-existing account
    NSDELETE_COUNT = 56,  // namespace state count less than 0 / overflow
    NSDELETE_DIR = 57,    // could not delete directory node in ledger
    NSDELETE_DIRECTORY =
        58,  // nsdelete operation failed to delete ns directory
    NSDELETE_DIR_ENTRY =
        59,  // nsdelete operation failed due to bad entry in ns directory
    NSDELETE_ENTRY =
        60,  // nsdelete operation failed due to missing hook state entry
    NSDELETE_FIELD = 61,
    NSDELETE_FLAGS = 62,
    NSDELETE_NONSTATE = 63,  // nsdelete operation failed due to the presence of
                             // a non-hookstate obj
    NSDELETE_NOTHING = 64,   // hsfNSDELETE provided but nothing to delete
    OPERATION_INVALID =
        65,  // could not deduce an operation from the provided hookset obj
    OVERRIDE_MISSING = 66,  // HookSet object was trying to update or delete a
                            // hook but lacked hsfOVERRIDE
    PARAMETERS_FIELD = 67,  // HookParameters contained a HookParameter with an
                            // invalid key in it
    PARAMETERS_ILLEGAL =
        68,  // HookParameters contained something other than a HookParameter
    PARAMETERS_NAME = 69,   // HookParameters contained a HookParameter which
                            // lacked ParameterName field
    PARAM_HOOK_CBAK = 70,   // hook and cbak must take exactly one u32 parameter
    RETURN_HOOK_CBAK = 71,  // hook and cbak must retunr i64
    SHORT_HOOK = 72,        // web assembly byte code ended abruptly
    TYPE_INVALID =
        73,  // malformed and illegal wasm specifying an illegal local var type
    WASM_BAD_MAGIC = 74,   // wasm magic number missing or not wasm
    WASM_INVALID = 75,     // set hook operation would set invalid wasm
    WASM_PARSE_LOOP = 76,  // wasm section parsing resulted in an infinite loop
    WASM_SMOKE_TEST =
        77,  // Informational: first attempt to load wasm into wasm runtime
    WASM_TEST_FAILURE = 78,  // the smoke test failed
    WASM_TOO_BIG = 79,       // set hook would exceed maximum hook size
    WASM_TOO_SMALL = 80,
    WASM_VALIDATION =
        81,  // a generic error while parsing wasm, usually leb128 overflow
    HOOK_CBAK_DIFF_TYPES =
        82,  // hook and cbak function definitions were different
    PARAMETERS_NAME_REPEATED = 83,
    NESTING_LIMIT = 84,  // the hook nested blocks/loops/ifs beyond 16 levels
    SECTIONS_OUT_OF_SEQUENCE =
        85,  // the wasm contained sections out of sequence
    CUSTOM_SECTION_DISALLOWED =
        86,               // the wasm contained a custom section (id=0)
    INTERNAL_ERROR = 87,  // an internal error described by the log text
    // RH NOTE: only HookSet msgs got log codes, possibly all Hook log lines
    // should get a code?
};
};  // namespace log
};  // namespace hook

namespace hook_api {

namespace keylet_code {
enum keylet_code : uint32_t {
    HOOK = 1,
    HOOK_STATE = 2,
    ACCOUNT = 3,
    AMENDMENTS = 4,
    CHILD = 5,
    SKIP = 6,
    FEES = 7,
    NEGATIVE_UNL = 8,
    LINE = 9,
    OFFER = 10,
    QUALITY = 11,
    EMITTED_DIR = 12,
    TICKET = 13,
    SIGNERS = 14,
    CHECK = 15,
    DEPOSIT_PREAUTH = 16,
    UNCHECKED = 17,
    OWNER_DIR = 18,
    PAGE = 19,
    ESCROW = 20,
    PAYCHAN = 21,
    EMITTED_TXN = 22,
    NFT_OFFER = 23,
    HOOK_DEFINITION = 24,
    HOOK_STATE_DIR = 25,
    LAST_KLTYPE_V0 = HOOK_DEFINITION,
    LAST_KLTYPE_V1 = HOOK_STATE_DIR,
};
}

namespace compare_mode {
enum compare_mode : uint32_t { EQUAL = 1, LESS = 2, GREATER = 4 };
}

enum hook_return_code : int64_t {
    SUCCESS =
        0,  // return codes > 0 are reserved for hook apis to return "success"
    OUT_OF_BOUNDS =
        -1,  // could not read or write to a pointer to provided by hook
    INTERNAL_ERROR = -2,  // eg directory is corrupt
    TOO_BIG = -3,         // something you tried to store was too big
    TOO_SMALL = -4,     // something you tried to store or provide was too small
    DOESNT_EXIST = -5,  // something you requested wasn't found
    NO_FREE_SLOTS =
        -6,  // when trying to load an object there is a maximum of 255 slots
    INVALID_ARGUMENT = -7,  // self explanatory
    ALREADY_SET =
        -8,  // returned when a one-time parameter was already set by the hook
    PREREQUISITE_NOT_MET =
        -9,  // returned if a required param wasn't set, before calling
    FEE_TOO_LARGE = -10,  // returned if the attempted operation would result in
                          // an absurd fee
    EMISSION_FAILURE =
        -11,  // returned if an emitted tx was not accepted by rippled
    TOO_MANY_NONCES = -12,  // a hook has a maximum of 256 nonces
    TOO_MANY_EMITTED_TXN =
        -13,  // a hook has emitted more than its stated number of emitted txn
    NOT_IMPLEMENTED =
        -14,  // an api was called that is reserved for a future version
    INVALID_ACCOUNT =
        -15,  // an api expected an account id but got something else
    GUARD_VIOLATION =
        -16,  // a guarded loop or function iterated over its maximum
    INVALID_FIELD = -17,  // the field requested is returning sfInvalid
    PARSE_ERROR = -18,  // hook asked hookapi to parse something the contents of
                        // which was invalid
    RC_ROLLBACK = -19,  // hook should terminate due to a rollback() call
    RC_ACCEPT = -20,    // hook should temrinate due to an accept() call
    NO_SUCH_KEYLET = -21,  // invalid keylet or keylet type
    NOT_AN_ARRAY =
        -22,  // if a count of an sle is requested but its not STI_ARRAY
    NOT_AN_OBJECT =
        -23,  // if a subfield is requested from something that isn't an object
    INVALID_FLOAT =
        -10024,  // specially selected value that will never be a valid exponent
    DIVISION_BY_ZERO = -25,
    MANTISSA_OVERSIZED = -26,
    MANTISSA_UNDERSIZED = -27,
    EXPONENT_OVERSIZED = -28,
    EXPONENT_UNDERSIZED = -29,
    XFL_OVERFLOW = -30,  // if an operation with a float results in an overflow
    NOT_IOU_AMOUNT = -31,
    NOT_AN_AMOUNT = -32,
    CANT_RETURN_NEGATIVE = -33,
    NOT_AUTHORIZED = -34,
    PREVIOUS_FAILURE_PREVENTS_RETRY = -35,
    TOO_MANY_PARAMS = -36,
    INVALID_TXN = -37,
    RESERVE_INSUFFICIENT =
        -38,  // setting a new state object would exceed account reserve
    COMPLEX_NOT_SUPPORTED = -39,
    DOES_NOT_MATCH =
        -40,  // two keylets were required to be the same type but werent
    INVALID_KEY = -41,   // user supplied key was not valid
    NOT_A_STRING = -42,  // nul terminator missing from a string argument
    MEM_OVERLAP = -43,   // one or more specified buffers are the same memory
    TOO_MANY_STATE_MODIFICATIONS = -44,  // more than 5000 modified state
                                         // entires in the combined hook chains
    TOO_MANY_NAMESPACES = -45
};

enum ExitType : uint8_t {
    UNSET = 0,
    WASM_ERROR = 1,
    ROLLBACK = 2,
    ACCEPT = 3,
};

const uint16_t max_state_modifications = 256;
const uint8_t max_slots = 255;
const uint8_t max_nonce = 255;
const uint8_t max_emit = 255;
const uint8_t max_params = 16;
const double fee_base_multiplier = 1.1f;

// RH NOTE: Find descriptions of api functions in ./impl/applyHook.cpp and
// hookapi.h (include for hooks) this is a map of the api name to its return
// code (vec[0] and its parameters vec[>0]) as wasm type codes
static const std::map<std::string, std::vector<uint8_t>> import_whitelist{
    {"_g", {0x7FU, 0x7FU, 0x7FU}},
    {"accept", {0x7EU, 0x7FU, 0x7FU, 0x7EU}},
    {"rollback", {0x7EU, 0x7FU, 0x7FU, 0x7EU}},
    {"util_raddr", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"util_accid", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"util_verify", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"util_sha512h", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"util_keylet",
     {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"sto_validate", {0x7EU, 0x7FU, 0x7FU}},
    {"sto_subfield", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"sto_subarray", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"sto_emplace", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"sto_erase", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"etxn_burden", {0x7EU}},
    {"etxn_details", {0x7EU, 0x7FU, 0x7FU}},
    {"etxn_fee_base", {0x7EU, 0x7FU, 0x7FU}},
    {"etxn_reserve", {0x7EU, 0x7FU}},
    {"etxn_generation", {0x7EU}},
    {"etxn_nonce", {0x7EU, 0x7FU, 0x7FU}},
    {"emit", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"float_set", {0x7EU, 0x7FU, 0x7EU}},
    {"float_multiply", {0x7EU, 0x7EU, 0x7EU}},
    {"float_mulratio", {0x7EU, 0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"float_negate", {0x7EU, 0x7EU}},
    {"float_compare", {0x7EU, 0x7EU, 0x7EU, 0x7FU}},
    {"float_sum", {0x7EU, 0x7EU, 0x7EU}},
    {"float_sto",
     {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7EU, 0x7FU}},
    {"float_sto_set", {0x7EU, 0x7FU, 0x7FU}},
    {"float_invert", {0x7EU, 0x7EU}},
    {"float_divide", {0x7EU, 0x7EU, 0x7EU}},
    {"float_one", {0x7EU}},
    {"float_mantissa", {0x7EU, 0x7EU}},
    {"float_sign", {0x7EU, 0x7EU}},
    {"float_int", {0x7EU, 0x7EU, 0x7FU, 0x7FU}},
    {"float_log", {0x7EU, 0x7EU}},
    {"float_root", {0x7EU, 0x7EU, 0x7FU}},
    {"fee_base", {0x7EU}},
    {"ledger_seq", {0x7EU}},
    {"ledger_last_time", {0x7EU}},
    {"ledger_last_hash", {0x7EU, 0x7FU, 0x7FU}},
    {"ledger_nonce", {0x7EU, 0x7FU, 0x7FU}},
    {"ledger_keylet", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"hook_account", {0x7EU, 0x7FU, 0x7FU}},
    {"hook_hash", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"hook_param_set", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"hook_param", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"hook_again", {0x7EU}},
    {"hook_skip", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"hook_pos", {0x7EU}},
    {"slot", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"slot_clear", {0x7EU, 0x7FU}},
    {"slot_count", {0x7EU, 0x7FU}},
    {"slot_set", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"slot_size", {0x7EU, 0x7FU}},
    {"slot_subarray", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"slot_subfield", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"slot_type", {0x7EU, 0x7FU, 0x7FU}},
    {"slot_float", {0x7EU, 0x7FU}},
    {"state_set", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"state_foreign_set",
     {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"state", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"state_foreign",
     {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"trace", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"trace_num", {0x7EU, 0x7FU, 0x7FU, 0x7EU}},
    {"trace_float", {0x7EU, 0x7FU, 0x7FU, 0x7EU}},
    {"otxn_burden", {0x7EU}},
    {"otxn_field", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"otxn_generation", {0x7EU}},
    {"otxn_id", {0x7EU, 0x7FU, 0x7FU, 0x7FU}},
    {"otxn_type", {0x7EU}},
    {"otxn_slot", {0x7EU, 0x7FU}},
    {"otxn_param", {0x7EU, 0x7FU, 0x7FU, 0x7FU, 0x7FU}},
    {"meta_slot", {0x7EU, 0x7FU}}};

// featureHooks1
static const std::map<std::string, std::vector<uint8_t>> import_whitelist_1{
    {"xpop_slot", {0x7EU, 0x7FU, 0x7FU}}};
};  // namespace hook_api
#endif