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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2023 Trili Tech  <contact@trili.tech>                       *)
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module Irmin_store = struct
  module IStore = Irmin_store.Make (struct
    let name = "Tezos DAC (Data Availability Committee) Node"
  end)

  include IStore
  include Store_utils.Make (IStore)
end

module Signature_store =
  Irmin_store.Make_nested_map
    (struct
      let path = ["coordinator"; "signature_store"]
    end)
    (struct
      type key = Dac_plugin.hash

      let to_path_representation key = Hex.show @@ Dac_plugin.hash_to_hex key
    end)
    (struct
      type key = Tezos_crypto.Aggregate_signature.public_key_hash

      let name = "Committee member public key hash"

      let compare = Tezos_crypto.Aggregate_signature.Public_key_hash.compare

      let encoding = Tezos_crypto.Aggregate_signature.Public_key_hash.encoding
    end)
    (struct
      type value = Tezos_crypto.Aggregate_signature.signature

      let name = "Committee member signature of root hash"

      let encoding = Tezos_crypto.Aggregate_signature.encoding
    end)

type certificate_store_value = {
  aggregate_signature : Tezos_crypto.Aggregate_signature.signature;
  witnesses : Z.t;
}

module Certificate_store =
  Irmin_store.Make_updatable_map
    (struct
      let path = ["coordinator"; "certificate_store"]
    end)
    (struct
      type key = Dac_plugin.hash

      let to_path_representation key = Hex.show @@ Dac_plugin.hash_to_hex key
    end)
    (struct
      type value = certificate_store_value

      let name = "Data availability certificate for root hash"

      let encoding =
        Data_encoding.(
          conv
            (fun {aggregate_signature; witnesses} ->
              (aggregate_signature, witnesses))
            (fun (aggregate_signature, witnesses) ->
              {aggregate_signature; witnesses})
            (obj2
               (req
                  "aggregate_signature"
                  Tezos_crypto.Aggregate_signature.encoding)
               (req "witnesses" z)))
    end)