open Cmdliner
open Cmdliner.Term.Syntax
open Offline_impl

module Arg = struct
  include Arg

  let timestamp =
    Arg.Conv.make ~docv:"timestamp argument" ~parser:Timestamp.of_string
      ~pp:Timestamp.pp ()

  let relative_time =
    Arg.Conv.make ~docv:"relative time argument"
      ~parser:Timestamp.Span.of_string ~pp:Timestamp.Span.pp ()

  let b32 =
    let pp fmt v = Fmt.pf fmt "%s" (B32.encode v) in
    Arg.Conv.make ~docv:"Crockford's Base32 encoded argument" ~parser:B32.decode
      ~pp ()

  let amount =
    Arg.Conv.make ~docv:"amount argument" ~parser:Amount.of_string ~pp:Amount.pp
      ()

  let eddsa_pub =
    let parser s = Crypto.EddsaPublicKey.of_b32 s in
    let pp fmt key =
      let s = Crypto.EddsaPublicKey.to_b32 key in
      Fmt.pf fmt "%s" s
    in
    Arg.Conv.make ~docv:"eddsa public key argument" ~parser ~pp ()
end

let default_master_offline_key_file = "data/master_offline_private_key"
(*
let default_response_file = "response.json"
let default_request_file = "request.json"
*)

let master_key =
  let doc = "Master offline Eddsa private key file." in
  Arg.(
    value
    & opt file default_master_offline_key_file
    & info [ "master_key_file" ] ~doc)

let input =
  let doc = "input file" in
  Arg.(required & opt (some file) None & info [ "i"; "input" ] ~doc)

let output =
  let doc = "output file" in
  Arg.(required & opt (some filepath) None & info [ "o"; "output" ] ~doc)

let url =
  let doc = "url" in
  Arg.(required & opt (some string) None & info [ "url" ] ~doc)

let setup_cmd =
  let doc = "Generate offline master keys" in
  let output =
    let doc = "output file" in
    Arg.(
      value
      & opt filepath default_master_offline_key_file
      & info [ "o"; "output" ] ~doc)
  in
  Cmd.make (Cmd.info "setup" ~doc)
  @@
  let+ output = output in
  setup ~output

let download_cmd =
  let doc = "GET /management/keys/" in
  let man =
    [ `S Manpage.s_description; `P "$(cmd) download /management/keys." ]
  in
  Cmd.make (Cmd.info "download" ~doc ~man)
  @@
  let+ output = output in
  download ~output

let upload_cmd =
  let doc = "POST input.json data to url (default /management/keys)" in
  Cmd.make (Cmd.info "upload" ~doc)
  @@
  let+ input = input and+ url = url in
  upload ~input ~url

let sign_cmd =
  let doc = "Sign FutureKeysResponse." in
  Cmd.make (Cmd.info "sign" ~doc)
  @@
  let+ input = input and+ output = output and+ master_key = master_key in
  sign ~input ~output ~master_key

let revoke_denom_cmd =
  let doc = "Revoke denomination." in
  let h_denom =
    let doc = "hash of denomination public key" in
    Arg.(required & pos 0 (some string) None & info [] ~doc)
  in
  Cmd.make (Cmd.info "revoke-denom" ~doc)
  @@
  let+ output = output and+ master_key = master_key and+ h_denom = h_denom in
  revoke_denom ~output ~master_key ~h_denom

let revoke_signkey_cmd =
  let doc = "Revoke signkey." in
  let signkey =
    let doc = "public signing key" in
    Arg.(required & pos 0 (some eddsa_pub) None & info [] ~doc)
  in
  Cmd.make (Cmd.info "revoke-signkey" ~doc)
  @@
  let+ output = output and+ master_key = master_key and+ signkey = signkey in
  revoke_signkey ~output ~master_key ~signkey

let enable_auditor_cmd =
  let doc = "Enable auditor." in
  let auditor_url =
    Arg.(required & opt (some string) None & info [ "auditor_url" ])
  in
  let auditor_name =
    Arg.(required & opt (some string) None & info [ "auditor_name" ])
  in
  let auditor_pub =
    Arg.(required & opt (some eddsa_pub) None & info [ "auditor_pub" ])
  in
  let validity_start =
    Arg.(required & opt (some timestamp) None & info [ "validity_start" ])
  in
  Cmd.make (Cmd.info "enable-auditor" ~doc)
  @@
  let+ output = output
  and+ master_key = master_key
  and+ auditor_url = auditor_url
  and+ auditor_name = auditor_name
  and+ auditor_pub = auditor_pub
  and+ validity_start = validity_start in
  enable_auditor ~output ~master_key ~auditor_url ~auditor_name ~auditor_pub
    ~validity_start

let disable_auditor_cmd =
  let doc = "Disable auditor." in
  let auditor_pub =
    Arg.(required & opt (some eddsa_pub) None & info [ "auditor_pub" ])
  in
  let validity_end =
    Arg.(required & opt (some timestamp) None & info [ "validity_end" ])
  in
  Cmd.make (Cmd.info "disable-auditor" ~doc)
  @@
  let+ output = output
  and+ master_key = master_key
  and+ auditor_pub = auditor_pub
  and+ validity_end = validity_end in
  disable_auditor ~output ~master_key ~auditor_pub ~validity_end

let wire_fee_cmd =
  let doc = "Provides wire fee configuration." in
  let wire_method =
    Arg.(required & opt (some string) None & info [ "wire_method" ])
  in
  let fee_start =
    Arg.(required & opt (some timestamp) None & info [ "fee_start" ])
  in
  let fee_end =
    Arg.(required & opt (some timestamp) None & info [ "fee_end" ])
  in
  let closing_fee =
    Arg.(required & opt (some amount) None & info [ "closing_fee" ])
  in
  let wire_fee =
    Arg.(required & opt (some amount) None & info [ "wire_fee" ])
  in
  Cmd.make (Cmd.info "wire-fee" ~doc)
  @@
  let+ output = output
  and+ master_key = master_key
  and+ wire_method = wire_method
  and+ fee_start = fee_start
  and+ fee_end = fee_end
  and+ closing_fee = closing_fee
  and+ wire_fee = wire_fee in
  Offline_impl.wire_fee ~output ~master_key ~wire_method ~fee_start ~fee_end
    ~closing_fee ~wire_fee

let global_fees_cmd =
  let doc = "Provides global fee configuration." in
  let start_date =
    Arg.(required & opt (some timestamp) None & info [ "start_date" ])
  in
  let end_date =
    Arg.(required & opt (some timestamp) None & info [ "end_date" ])
  in
  let history_fee =
    Arg.(required & opt (some amount) None & info [ "history_fee" ])
  in
  let account_fee =
    Arg.(required & opt (some amount) None & info [ "account_fee" ])
  in
  let purse_fee =
    Arg.(required & opt (some amount) None & info [ "purse_fee" ])
  in
  let history_expiration =
    Arg.(
      required & opt (some relative_time) None & info [ "history_expiration" ])
  in
  let purse_account_limit =
    Arg.(required & opt (some int) None & info [ "purse_account_limit" ])
  in
  let purse_timeout =
    Arg.(required & opt (some relative_time) None & info [ "purse_timeout" ])
  in
  Cmd.make (Cmd.info "global-fees" ~doc)
  @@
  let+ output = output
  and+ master_key = master_key
  and+ start_date = start_date
  and+ end_date = end_date
  and+ history_fee = history_fee
  and+ account_fee = account_fee
  and+ purse_fee = purse_fee
  and+ history_expiration = history_expiration
  and+ purse_account_limit = purse_account_limit
  and+ purse_timeout = purse_timeout in
  global_fees ~output ~master_key ~start_date ~end_date ~history_fee
    ~account_fee ~purse_fee ~history_expiration ~purse_account_limit
    ~purse_timeout

let drain_cmd =
  let doc =
    "Drain profits from the exchange. The actual drain requires running the \
     taler-exchange-drain tool."
  in
  let debit_account_section =
    Arg.(required & opt (some string) None & info [ "debit_account_section" ])
  in
  let credit_payto_uri =
    Arg.(required & opt (some string) None & info [ "credit_payto_uri" ])
  in
  let wtid = Arg.(required & opt (some b32) None & info [ "wtid" ]) in
  let date = Arg.(required & opt (some timestamp) None & info [ "date" ]) in
  let amount = Arg.(required & opt (some amount) None & info [ "amount" ]) in
  Cmd.make (Cmd.info "drain" ~doc)
  @@
  let+ output = output
  and+ master_key = master_key
  and+ debit_account_section = debit_account_section
  and+ credit_payto_uri = credit_payto_uri
  and+ wtid = wtid
  and+ date = date
  and+ amount = amount in
  drain ~output ~master_key ~debit_account_section ~credit_payto_uri ~wtid ~date
    ~amount

let cli =
  let info =
    let doc = "MTE Offline CLI tool" in
    Cmd.info "mte-offline" ~doc
  in
  Cmd.group info
    [
      setup_cmd;
      download_cmd;
      sign_cmd;
      upload_cmd;
      revoke_denom_cmd;
      revoke_signkey_cmd;
      enable_auditor_cmd;
      disable_auditor_cmd;
      wire_fee_cmd;
      global_fees_cmd;
      drain_cmd;
    ]

let main () = Cmd.eval_result cli
let () = if !Sys.interactive then () else exit (main ())

(* TODO
   all management operations:
     /management/wire
     /management/wire/disable
       -> how to build WireSetupMessage?
          we need additional data to craft master_sig
          maybe supposed to be found in the full payto-uri?

     /management/aml-officers
       -> /aml
     /management/partners
       -> /wads *)