(**************************************************************************)
(*                                                                        *)
(*    Copyright (c) 2014 - 2016.                                          *)
(*    Dynamic Ledger Solutions, Inc. <contact@tezos.com>                  *)
(*                                                                        *)
(*    All rights reserved. No warranty, explicit or implicit, provided.   *)
(*                                                                        *)
(**************************************************************************)

open Client_commands

let protocol =
  Protocol_hash.of_b58check_exn
    "ProtoGenesisGenesisGenesisGenesisGenesisGenesk612im"

let call_service1 rpc_config s block a1 =
  Client_rpcs.call_service1 rpc_config
    (s Node_rpc_services.Blocks.proto_path) block a1

let call_error_service1 rpc_config s block a1 =
  call_service1 rpc_config s block a1 >>= function
  | Ok (Error _ as err) -> Lwt.return (Environment.wrap_error err)
  | Ok (Ok v) -> return v
  | Error _ as err -> Lwt.return err

let forge_block
    rpc_config block net_id ?(timestamp = Time.now ()) command fitness =
  let block = Client_rpcs.last_mined_block block in
  Client_node_rpcs.Blocks.info rpc_config block >>=? fun pred ->
  let proto_level =
    match command with
    | Data.Command.Activate _ -> 1
    | Data.Command.Activate_testnet (_,_) -> 0 in
  call_service1 rpc_config
    Services.Forge.block block
    ((net_id, Int32.succ pred.level, proto_level,
      pred.hash, timestamp, fitness), command)

let mine rpc_config ?timestamp block command fitness seckey =
  let block = Client_rpcs.last_mined_block block in
  Client_node_rpcs.Blocks.info rpc_config block >>=? fun bi ->
  forge_block
    rpc_config ?timestamp block bi.net_id command fitness >>=? fun blk ->
  let signed_blk = Environment.Ed25519.Signature.append seckey blk in
  Client_node_rpcs.inject_block rpc_config signed_blk [[]]

let commands () =
  let open Cli_entries in
  let args =
    args1
      (arg
         ~parameter:"-timestamp"
         ~doc:"Set the timestamp of the block (and initial time of the chain)"
         (fun _ t ->
            match (Time.of_notation t) with
            | None -> Error_monad.failwith "Could not parse value provided to -timestamp option"
            | Some t -> return t)) in
  [

    command ~desc: "Activate a protocol"
      args
      (prefixes [ "activate" ; "protocol" ]
       @@ Protocol_hash.param ~name:"version" ~desc:"Protocol version (b58check)"
       @@ prefixes [ "with" ; "fitness" ]
       @@ param ~name:"fitness"
         ~desc:"Hardcoded fitness of the first block (integer)"
         (fun _ p ->
            try return (Int64.of_string p)
            with _ -> failwith "Cannot read int64")
       @@ prefixes [ "and" ; "key" ]
       @@ Client_keys.Secret_key.source_param
         ~name:"password" ~desc:"Dictator's key"
       @@ stop)
      begin fun timestamp hash fitness seckey cctxt ->
        let fitness =
          Client_embedded_alpha.Client_proto_alpha.Fitness_repr.from_int64 fitness in
        mine cctxt.rpc_config ?timestamp cctxt.config.block
          (Activate hash) fitness seckey >>=? fun hash ->
        cctxt.answer "Injected %a" Block_hash.pp_short hash >>= fun () ->
        return ()
      end ;

    command ~desc: "Fork a test protocol"
      args
      (prefixes [ "fork" ; "test" ; "protocol" ]
       @@ Protocol_hash.param ~name:"version" ~desc:"Protocol version (b58check)"
       @@ prefixes [ "with" ; "fitness" ]
       @@ param ~name:"fitness"
         ~desc:"Hardcoded fitness of the first block (integer)"
         (fun _ p ->
            try return (Int64.of_string p)
            with _ -> failwith "Cannot read int64")
       @@ prefixes [ "and" ; "key" ]
       @@ Environment.Ed25519.Secret_key.param
         ~name:"password" ~desc:"Dictator's key"
       @@ stop)
      begin fun timestamp hash fitness seckey cctxt ->
        let fitness =
          Client_embedded_alpha.Client_proto_alpha.Fitness_repr.from_int64 fitness in
        mine cctxt.rpc_config ?timestamp cctxt.config.block
          (Activate_testnet (hash, Int64.mul 24L 3600L))
          fitness seckey >>=? fun hash ->
        cctxt.answer "Injected %a" Block_hash.pp_short hash >>= fun () ->
        return ()
      end ;

  ]

let () =
  Client_commands.register protocol @@
  commands ()