syntax = "proto3";

package topfans.activity;

option go_package = "github.com/topfans/backend/pkg/proto/activity;activity";

import "proto/common.proto";
import "google/api/annotations.proto";

// ==================== 活动相关消息 ====================

// 活动信息
message Activity {
  int64 id = 1;
  string activity_type = 2;
  string title = 3;
  string theme = 17;                       // 中文主题
  string description = 4;
  int64 star_id = 5;
  int64 start_time = 6;
  int64 end_time = 7;
  int64 target_progress = 8;
  int64 current_progress = 9;
  string status = 10;
  string current_stage = 11;  // 当前阶段: early/mid/late/completed
  repeated ActivityItem items = 12;
  string cover_image = 13;                 // 封面图
  string banner_image = 14;                 // 横幅图
  string current_stage_background = 15;      // 当前阶段背景图
  string current_stage_title = 16;          // 当前阶段标题
}

// 活动道具
message ActivityItem {
  int64 id = 1;
  string item_type = 2;
  string item_name = 3;
  string icon_url = 4;
  int32 crystal_cost = 5;
  int32 contribution_points = 6;
}

// 活动道具列表响应
message ActivityItemsResponse {
  repeated ActivityItem items = 1;
}

// 购买道具请求
message PurchaseItemRequest {
  int64 activity_id = 1;
  string item_type = 2;
  int32 quantity = 3;
  int64 star_id = 4;
  int64 user_id = 5;  // 当前用户ID
}

// 购买道具响应
message PurchaseItemResponse {
  topfans.common.BaseResponse base = 1;
  int64 total_crystal_spent = 2;   // 本次消费水晶
  int64 total_contribution = 3;    // 本次获得贡献点
  int64 current_progress = 4;       // 当前活动进度
  int64 remaining_balance = 5;     // 剩余水晶余额
}

// 贡献点排名请求
message ContributionRankingRequest {
  int64 activity_id = 1;
  int64 star_id = 2;
  int32 page = 3;
  int32 page_size = 4;
  int64 user_id = 5;  // 当前用户ID，用于获取自己的排名
}

// 贡献点排名项
message ContributionRankingItem {
  int32 rank = 1;
  int64 user_id = 2;
  string nickname = 3;
  string avatar_url = 4;
  int64 total_contribution = 5;
  int64 total_crystal_spent = 6;
}

// 贡献点排名响应
message ContributionRankingResponse {
  topfans.common.BaseResponse base = 1;
  repeated ContributionRankingItem items = 2;
  MyContribution my_contribution = 3;
  int32 page = 4;
  int32 page_size = 5;
  int32 total = 6;
}

// 我的贡献信息
message MyContribution {
  int32 rank = 1;
  int64 total_contribution = 2;
  int64 total_crystal_spent = 3;
  string status = 4;  // ranked/unranked
  string nickname = 5;
  string avatar_url = 6;
}

// 活动列表请求
message GetActivityListRequest {
  int64 star_id = 1;
  string status = 2;  // 可选: pending/active/completed/expired
  int32 page = 3;
  int32 page_size = 4;
}

// 活动列表响应
message GetActivityListResponse {
  topfans.common.BaseResponse base = 1;
  repeated Activity activities = 2;
  int32 page = 3;
  int32 page_size = 4;
  int32 total = 5;
}

// 进度信息请求
message GetProgressRequest {
  int64 activity_id = 1;
}

// 进度信息响应
message GetProgressResponse {
  topfans.common.BaseResponse base = 1;
  int64 activity_id = 2;
  int64 current_progress = 3;
  int64 target_progress = 4;
  string current_stage = 5;  // early/mid/late/completed
  int64 end_time = 6;
  string status = 7;  // pending/active/completed/expired
}

// ==================== 活动服务 ====================

service ActivityService {
  // 获取活动列表
  rpc GetActivityList(GetActivityListRequest) returns (GetActivityListResponse) {
    option (google.api.http) = {
      get: "/api/v1/activities"
    };
  }

  // 获取活动详情
  rpc GetActivity(GetProgressRequest) returns (Activity) {
    option (google.api.http) = {
      get: "/api/v1/activities/{activity_id}"
    };
  }

  // 获取活动道具列表
  rpc GetActivityItems(GetProgressRequest) returns (ActivityItemsResponse) {
    option (google.api.http) = {
      get: "/api/v1/activities/{activity_id}/items"
    };
  }

  // 获取活动进度
  rpc GetProgress(GetProgressRequest) returns (GetProgressResponse) {
    option (google.api.http) = {
      get: "/api/v1/activities/{activity_id}/progress"
    };
  }

  // 购买道具
  rpc PurchaseItem(PurchaseItemRequest) returns (PurchaseItemResponse) {
    option (google.api.http) = {
      post: "/api/v1/activities/{activity_id}/purchase"
      body: "*"
    };
  }

  // 获取贡献点排名
  rpc GetContributionRanking(ContributionRankingRequest) returns (ContributionRankingResponse) {
    option (google.api.http) = {
      get: "/api/v1/activities/{activity_id}/ranking"
    };
  }
}