module arch.node.engines.storage_behaviour;

import arch.node.engines.storage_messages open;
import arch.node.engines.storage_config open;
import arch.node.engines.storage_environment open;

import arch.node.types.basics open;
import arch.node.types.identities open;
import arch.node.types.messages open;
import arch.node.types.engine open;
import arch.node.types.anoma as Anoma open;

StorageActionArguments : Type := Unit;

StorageAction : Type :=
  Action
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

StorageActionInput : Type :=
  ActionInput
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg;

StorageActionEffect : Type :=
  ActionEffect
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

StorageActionExec : Type :=
  ActionExec
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

exampleReplyAction (input : StorageActionInput) : Option StorageActionEffect :=
  TODO;

{-
let
cfg := ActionInput.cfg input;
env := ActionInput.env input;
trigger := ActionInput.trigger input;
args := ActionInput.args input;
in
case getEngineMsgFromTimestampedTrigger trigger of {
| some EngineMsg.mk@{
msg := Anoma.PreMsg.MsgStorage (StorageMsgExampleRequest req);
sender := sender;
target := target;
mailbox := mailbox;
} :=
some ActionEffect.mk@{
env := env;
msgs := [
EngineMsg.mk@{
sender := getEngineIDFromEngineCfg cfg;
target := sender;
mailbox := some 0;
msg :=
Anoma.PreMsg.MsgStorage
(StorageMsgExampleReply
(ok mkExampleReplyOk@{
argOne := ExampleRequest.argOne req;
}));
}
];
timers := [];
engines := [];
}
| _ := none
-}
exampleReplyActionLabel : StorageActionExec :=
  ActionExec.Seq [exampleReplyAction];

StorageGuard : Type :=
  Guard
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

StorageGuardOutput : Type :=
  GuardOutput
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

StorageGuardEval : Type :=
  GuardEval
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

exampleReplyGuard
  (trigger : StorageTimestampedTrigger)
  (cfg : StorageCfg)
  (env : StorageEnv)
  : Option StorageGuardOutput := TODO;

{-
case getEngineMsgFromTimestampedTrigger trigger of {
| some EngineMsg.mk@{
msg := Anoma.PreMsg.MsgStorage (StorageMsgExampleRequest req);
sender := mkPair none _; -- from local engines only (NodeID is none)
} := some GuardOutput.mk@{
action := exampleReplyActionLabel;
args := [];
}
| _ := none
-}
StorageBehaviour : Type :=
  EngineBehaviour
    StorageLocalCfg
    StorageLocalState
    StorageMailboxState
    StorageTimerHandle
    StorageActionArguments
    Anoma.Msg
    Anoma.Cfg
    Anoma.Env;

module storage_behaviour_example;
  
  exStorageBehaviour : StorageBehaviour :=
    EngineBehaviour.mk@{
      guards := GuardEval.First [exampleReplyGuard];
    };

end;