syntax = "proto3";

package cosmos.group.v1beta1;

option go_package = "github.com/cosmos/cosmos-sdk/x/group";

import "gogoproto/gogo.proto";
import "google/protobuf/duration.proto";
import "google/protobuf/timestamp.proto";
import "cosmos_proto/cosmos.proto";
import "google/protobuf/any.proto";

// Member represents a group member with an account address,
// non-zero weight and metadata.
message Member {

  // address is the member's account address.
  string address = 1;

  // weight is the member's voting weight that should be greater than 0.
  string weight = 2;

  // metadata is any arbitrary metadata to attached to the member.
  bytes metadata = 3;
}

// Members defines a repeated slice of Member objects.
message Members {

  // members is the list of members.
  repeated Member members = 1 [(gogoproto.nullable) = false];
}

// ThresholdDecisionPolicy implements the DecisionPolicy interface
message ThresholdDecisionPolicy {
  option (cosmos_proto.implements_interface) = "DecisionPolicy";

  // threshold is the minimum weighted sum of yes votes that must be met or exceeded for a proposal to succeed.
  string threshold = 1;

  // timeout is the duration from submission of a proposal to the end of voting period
  // Within this times votes and exec messages can be submitted.
  google.protobuf.Duration timeout = 2 [(gogoproto.stdduration) = true, (gogoproto.nullable) = false];
}

// Choice defines available types of choices for voting.
enum Choice {

  // CHOICE_UNSPECIFIED defines a no-op voting choice.
  CHOICE_UNSPECIFIED = 0;

  // CHOICE_NO defines a no voting choice.
  CHOICE_NO = 1;

  // CHOICE_YES defines a yes voting choice.
  CHOICE_YES = 2;

  // CHOICE_ABSTAIN defines an abstaining voting choice.
  CHOICE_ABSTAIN = 3;

  // CHOICE_VETO defines a voting choice with veto.
  CHOICE_VETO = 4;
}

//
// State
//

// GroupInfo represents the high-level on-chain information for a group.
message GroupInfo {

  // group_id is the unique ID of the group.
  uint64 group_id = 1;

  // admin is the account address of the group's admin.
  string admin = 2;

  // metadata is any arbitrary metadata to attached to the group.
  bytes metadata = 3;

  // version is used to track changes to a group's membership structure that
  // would break existing proposals. Whenever any members weight is changed,
  // or any member is added or removed this version is incremented and will
  // cause proposals based on older versions of this group to fail
  uint64 version = 4;

  // total_weight is the sum of the group members' weights.
  string total_weight = 5;
}

// GroupMember represents the relationship between a group and a member.
message GroupMember {

  // group_id is the unique ID of the group.
  uint64 group_id = 1;

  // member is the member data.
  Member member = 2;
}

// GroupAccountInfo represents the high-level on-chain information for a group account.
message GroupAccountInfo {
  option (gogoproto.equal)           = true;
  option (gogoproto.goproto_getters) = false;

  // address is the group account address.
  string address = 1;

  // group_id is the unique ID of the group.
  uint64 group_id = 2;

  // admin is the account address of the group admin.
  string admin = 3;

  // metadata is any arbitrary metadata to attached to the group account.
  bytes metadata = 4;

  // version is used to track changes to a group's GroupAccountInfo structure that
  // would create a different result on a running proposal.
  uint64 version = 5;

  // decision_policy specifies the group account's decision policy.
  google.protobuf.Any decision_policy = 6 [(cosmos_proto.accepts_interface) = "DecisionPolicy"];

  // derivation_key is the "derivation" key of the group account,
  // which is needed to derive the group root module key and execute proposals.
  bytes derivation_key = 7;
}

// Proposal defines a group proposal. Any member of a group can submit a proposal
// for a group account to decide upon.
// A proposal consists of a set of `sdk.Msg`s that will be executed if the proposal
// passes as well as some optional metadata associated with the proposal.
message Proposal {
  option (gogoproto.goproto_getters) = false;

  // proposal_id is the unique id of the proposal.
  uint64 proposal_id = 1;

  // address is the group account address.
  string address = 2;

  // metadata is any arbitrary metadata to attached to the proposal.
  bytes metadata = 3;

  // proposers are the account addresses of the proposers.
  repeated string proposers = 4;

  // submitted_at is a timestamp specifying when a proposal was submitted.
  google.protobuf.Timestamp submitted_at = 5 [(gogoproto.nullable) = false, (gogoproto.stdtime) = true];

  // group_version tracks the version of the group that this proposal corresponds to.
  // When group membership is changed, existing proposals from previous group versions will become invalid.
  uint64 group_version = 6;

  // group_account_version tracks the version of the group account that this proposal corresponds to.
  // When a decision policy is changed, existing proposals from previous policy versions will become invalid.
  uint64 group_account_version = 7;

  // Status defines proposal statuses.
  enum Status {
    option (gogoproto.goproto_enum_prefix) = false;

    // An empty value is invalid and not allowed.
    STATUS_UNSPECIFIED = 0 [(gogoproto.enumvalue_customname) = "ProposalStatusInvalid"];

    // Initial status of a proposal when persisted.
    STATUS_SUBMITTED = 1 [(gogoproto.enumvalue_customname) = "ProposalStatusSubmitted"];

    // Final status of a proposal when the final tally was executed.
    STATUS_CLOSED = 2 [(gogoproto.enumvalue_customname) = "ProposalStatusClosed"];

    // Final status of a proposal when the group was modified before the final tally.
    STATUS_ABORTED = 3 [(gogoproto.enumvalue_customname) = "ProposalStatusAborted"];

    // TODO: do we want to support a withdrawn operation?
    // A proposal can be deleted before the voting start time by the owner. When this happens the final status
    // is Withdrawn.
    //        STATUS_WITHDRAWN = 4 [(gogoproto.enumvalue_customname) = "Withdrawn"];
  }

  // Status represents the high level position in the life cycle of the proposal. Initial value is Submitted.
  Status status = 8;

  // Result defines types of proposal results.
  enum Result {
    option (gogoproto.goproto_enum_prefix) = false;

    // An empty value is invalid and not allowed
    RESULT_UNSPECIFIED = 0 [(gogoproto.enumvalue_customname) = "ProposalResultInvalid"];

    // Until a final tally has happened the status is unfinalized
    RESULT_UNFINALIZED = 1 [(gogoproto.enumvalue_customname) = "ProposalResultUnfinalized"];

    // Final result of the tally
    RESULT_ACCEPTED = 2 [(gogoproto.enumvalue_customname) = "ProposalResultAccepted"];

    // Final result of the tally
    RESULT_REJECTED = 3 [(gogoproto.enumvalue_customname) = "ProposalResultRejected"];
  }

  // result is the final result based on the votes and election rule. Initial value is unfinalized.
  // The result is persisted so that clients can always rely on this state and not have to replicate the logic.
  Result result = 9;

  // vote_state contains the sums of all weighted votes for this proposal.
  Tally vote_state = 10 [(gogoproto.nullable) = false];

  // timeout is the timestamp of the block where the proposal execution times out. Header times of the votes and
  // execution messages must be before this end time to be included in the election. After the timeout timestamp the
  // proposal can not be executed anymore and should be considered pending delete.
  google.protobuf.Timestamp timeout = 11 [(gogoproto.nullable) = false, (gogoproto.stdtime) = true];

  // ExecutorResult defines types of proposal executor results.
  enum ExecutorResult {
    option (gogoproto.goproto_enum_prefix) = false;

    // An empty value is not allowed.
    EXECUTOR_RESULT_UNSPECIFIED = 0 [(gogoproto.enumvalue_customname) = "ProposalExecutorResultInvalid"];

    // We have not yet run the executor.
    EXECUTOR_RESULT_NOT_RUN = 1 [(gogoproto.enumvalue_customname) = "ProposalExecutorResultNotRun"];

    // The executor was successful and proposed action updated state.
    EXECUTOR_RESULT_SUCCESS = 2 [(gogoproto.enumvalue_customname) = "ProposalExecutorResultSuccess"];

    // The executor returned an error and proposed action didn't update state.
    EXECUTOR_RESULT_FAILURE = 3 [(gogoproto.enumvalue_customname) = "ProposalExecutorResultFailure"];
  }

  // executor_result is the final result based on the votes and election rule. Initial value is NotRun.
  ExecutorResult executor_result = 12;

  // msgs is a list of Msgs that will be executed if the proposal passes.
  repeated google.protobuf.Any msgs = 13;
}

// Tally represents the sum of weighted votes.
message Tally {
  option (gogoproto.goproto_getters) = false;

  // yes_count is the weighted sum of yes votes.
  string yes_count = 1;

  // no_count is the weighted sum of no votes.
  string no_count = 2;

  // abstain_count is the weighted sum of abstainers
  string abstain_count = 3;

  // veto_count is the weighted sum of vetoes.
  string veto_count = 4;
}

// Vote represents a vote for a proposal.
message Vote {

  // proposal is the unique ID of the proposal.
  uint64 proposal_id = 1;

  // voter is the account address of the voter.
  string voter = 2;

  // choice is the voter's choice on the proposal.
  Choice choice = 3;

  // metadata is any arbitrary metadata to attached to the vote.
  bytes metadata = 4;

  // submitted_at is the timestamp when the vote was submitted.
  google.protobuf.Timestamp submitted_at = 5 [(gogoproto.nullable) = false, (gogoproto.stdtime) = true];
}