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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, sublicense,  *)
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(* Software is furnished to do so, subject to the following conditions:      *)
(*                                                                           *)
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(* in all copies or substantial portions of the Software.                    *)
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(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  *)
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(* DEALINGS IN THE SOFTWARE.                                                 *)
(*                                                                           *)
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val current : Raw_context.t -> Level_repr.t

val previous : Raw_context.t -> Level_repr.t

val root : Raw_context.t -> Level_repr.t

val from_raw :
  Raw_context.t -> ?offset:int32 -> Raw_level_repr.t -> Level_repr.t

val pred : Raw_context.t -> Level_repr.t -> Level_repr.t option

val succ : Raw_context.t -> Level_repr.t -> Level_repr.t

val first_level_in_cycle : Raw_context.t -> Cycle_repr.t -> Level_repr.t

val last_level_in_cycle : Raw_context.t -> Cycle_repr.t -> Level_repr.t

val levels_in_cycle : Raw_context.t -> Cycle_repr.t -> Level_repr.t list

val levels_in_current_cycle :
  Raw_context.t -> ?offset:int32 -> unit -> Level_repr.t list

val levels_with_commitments_in_cycle :
  Raw_context.t -> Cycle_repr.t -> Level_repr.t list

val last_allowed_fork_level : Raw_context.t -> Raw_level_repr.t

(** Returns [Some cycle] if the current level represents the last
   level of [cycle] and [None] if the level is not the last level of a
   cycle. *)
val dawn_of_a_new_cycle : Raw_context.t -> Cycle_repr.t option

(** Returns [true] if the rolls should be snapshot at the current
   level. *)
val may_snapshot_rolls : Raw_context.t -> bool