syntax = "proto2";

// Sugar for easier handling in Java
option java_package = "com.satoshilabs.trezor.lib.protobuf";
option java_outer_classname = "TrezorMessageTezos";

/**
 * Request: Ask device for Tezos address corresponding to address_n path
 * @next PassphraseRequest
 * @next TezosAddress
 * @next Failure
 */
message TezosGetAddress {
    repeated uint32 address_n = 1;      // BIP-32 path to derive the key from master node
    optional bool show_display = 2;     // optionally show on display before sending the result
}

/**
 * Response: Contains Tezos address derived from device private seed
 * @prev TezosGetAddress
 */
message TezosAddress {
    optional string address = 1;        // Coin address in Base58 encoding
}

/**
 * Request: Ask device to sign Tezos transaction
 * @next TezosSignedTx
 */
message TezosSignTx {
    repeated uint32 address_n = 1;                  // BIP-32 path to derive the key from master node
    optional TezosOperationCommon operation = 2;    // Tezos operation structure
    optional TezosTransactionType transaction = 3;  // Tezos transaction part
    optional TezosOriginationType origination = 4;  // Tezos origination part
    optional TezosDelegationType delegation = 5;    // Tezos delegation part
    /*
    * Tezos contract ID
    */
    message TezosContractID {
        optional TezosContractType tag = 1;
        optional bytes hash = 2;                    // Implicit = 21B, originated = 20B + 1B padding
        /*
        * Type of Tezos Contract type
        */
        enum TezosContractType {
            Implicit = 0;
            Originated = 1;
        }
    }
    /*
     * Structure representing the common part for Tezos operations
     */
    message TezosOperationCommon {
        optional bytes branch = 1;
        optional TezosOperationType tag = 2;
        optional TezosContractID source = 3;
        optional uint64 fee = 4;
        optional uint64 counter = 5;
        optional uint64 gas_limit = 6;
        optional uint64 storage_limit = 7;
        /*
        * Type of Tezos operation
        */
        enum TezosOperationType {
            Transaction = 8;
            Origination = 9;
            Delegation = 10;
        }
    }
    /*
     * Structure representing additional information for transaction
     */
    message TezosTransactionType {
        optional uint64 amount = 1;
        optional TezosContractID destination = 2;
        optional bytes parameters = 3;
    }
    /*
    * Structure representing additional information for origination
    */
    message TezosOriginationType {
        optional bytes manager_pubkey = 1;
        optional uint64 balance = 2;
        optional bool spendable = 3;
        optional bool delegatable = 4;
        optional bytes delegate = 5;        // 1B tag + 20B public key hash
        optional bytes script = 6;
    }
    /*
    * Structure representing additional information for delegation
    */
    message TezosDelegationType {
        optional bytes delegate = 1;        // 1B tag + 20B public key hash
    }
}

/**
* Response: Contains Tezos transaction signature
* @prev TezosSignTx
*/
message TezosSignedTx {
    optional bytes signature = 1;           // Tezos transaction signature
    optional bytes sig_op_contents = 2;     // Signed operation contents
    optional string operation_hash = 3;     // b58 check encoded blake2b hashed operation contents
}

/**
 * Request: Ask device for Tezos public key corresponding to address_n path
 * @next TezosPublicKey
 */
message TezosGetPublicKey {
    repeated uint32 address_n = 1;          // BIP-32 path to derive the key from master node
    optional bool show_display = 2;         // Optionally show on display before sending the result
}

/**
 * Response: Contains Tezos public key derived from device private seed
 * @prev TezosGetPublicKey
*/
message TezosPublicKey {
    optional bytes public_key = 1;          // Tezos public key
}