Files
x0gp/server/proto/client_server.proto
x0gp 978d36c505 feat(server): initial implementation
This commit captures the full server code accumulated across
several development sessions. It includes the following layers,
applied in roughly this order during development:

1. Base infrastructure
   - cmd/poc-server HTTP+WebSocket server, /health, /stats
   - internal/transport wire types (Envelope + all message types)
   - internal/catalog, internal/realtime, internal/stats
   - internal/storage/postgres with migrations 001-004
   - .env, .env.example, docker-compose, Dockerfile, scripts/

2. Swagger documentation
   - go get github.com/swaggo/http-swagger
   - swag init produces docs/docs.go
   - /swagger/index.html UI, /swagger/doc.json spec
   - annotations on health/stats/ws and catalog handlers

3. Races API
   - internal/races/{store,service,keyset,types}.go
   - migration 005_races.sql: finished_races, race_plans, race_queue
   - GET /api/races with keyset pagination, status filter
   - GET /api/races/upcoming
   - POST /api/races/queue/join, GET, DELETE
   - POST/GET /api/races/plans, DELETE /{id}
   - lobby.RaceMeta simplification (no host_id/host_name)

4. Races seeder
   - internal/races/seed with deterministic generator
   - --seed-races / --reset CLI flags in main.go
   - 30 finished + 5 live + 5 plans + 4 queue entries

5. Drivers and clans
   - internal/drivers, internal/clans (CRUD, validation)
   - migration 008_drivers_clans.sql
   - /api/clans and /api/drivers endpoints
   - 3-letter uppercase nickname/tag validation
   - lobby.DriverMeta: Nickname, AvatarURL, ClanID, ClanTag

6. Podium
   - internal/transport.RacePodiumEntry
   - lobby.SetDriverProfile for in-memory metadata sync
   - migration 007_podium.sql (podium JSONB column)
   - seeder populates top-3 per finished race

7. Live races persistence
   - migration 009_live_persistence.sql: live_races,
     live_race_drivers, lobby_drivers
   - internal/races/live_store.go: LiveStore with write-side
     mirror for lobby.Service mutations
   - Service.collectLive and Upcoming read from Postgres
   - main.go RestoreFromDB rehydrates lobby on startup

8. Unify live + finished into one races table
   - migration 010_unify_races.sql: rename finished_races to
     races, expand status CHECK, merge live rows
   - PgStore now hosts both write paths; LiveStore is a
     thin facade implementing lobby.Persistence
   - seeder resetAll drops only finished/cancelled rows and
     race_plans / race_queue / lobby_drivers

Each layer is consistent on its own; cross-layer changes are
visible in the file history. A future refactor may split this
commit into the per-stage boundaries listed above.
2026-06-22 22:01:09 +04:00

146 lines
3.4 KiB
Protocol Buffer

syntax = "proto3";
package x0gp.v1;
option go_package = "github.com/x0gp/server/proto/gen/clientserverpb";
// ============================================================
// Wire protocol between client (browser / mobile) and server.
// ============================================================
//
// In PoC we use JSON via transport/codec.go. This file is the formal spec
// for the binary protobuf wire format we'll switch to in MVP/prod. The
// generated code lives in proto/gen/ and will replace transport/.
//
// Packet envelope (oneof payload):
// message Packet {
// uint64 seq = 1;
// int64 ts_ms = 2;
// oneof payload {
// ClientHello client_hello = 10;
// ServerHello server_hello = 11;
// JoinRace join_race = 12;
// LeaveRace leave_race = 13;
// InputState input_state = 14;
// RaceSnapshot race_snapshot = 15;
// InputAck input_ack = 16;
// Correction correction = 17;
// RaceEvent race_event = 18;
// Ping ping = 19;
// Pong pong = 20;
// ErrorMsg error_msg = 21;
// ChatMessage chat_message = 22;
// }
// }
// --- Client -> Server ---
message ClientHello {
string version = 1;
string token = 2; // JWT in prod; empty in dev
string locale = 3;
string client_id = 4; // for reconnect
}
message JoinRace {
string race_id = 1;
int32 car_slot = 2; // 0..3
string car_name = 3;
}
message LeaveRace {
string race_id = 1;
}
// High-rate control packet (60-120 Hz).
message InputState {
float steering = 1; // -1.0 .. 1.0
float throttle = 2; // 0.0 .. 1.0
float brake = 3; // 0.0 .. 1.0
int32 gear = 4; // -1 reverse, 0 neutral, 1..6 forward
uint32 buttons = 5;
}
message Ping {
int64 client_ts_ms = 1;
}
message ChatMessage {
string text = 1;
}
// --- Server -> Client ---
message ServerHello {
string session_id = 1;
uint64 race_tick = 2;
string server_version = 3;
ServerConfig config = 4;
}
message ServerConfig {
int32 tick_rate_hz = 1;
int32 snapshot_rate_hz = 2;
int32 max_cars = 3;
}
message RaceSnapshot {
uint64 tick = 1;
int64 ts_ms = 2;
double elapsed_s = 3;
repeated CarInfo cars = 4;
}
message CarInfo {
string id = 1;
string driver_name = 2;
double x = 3; // metres
double y = 4; // metres
double heading = 5; // radians
double speed = 6; // m/s
int32 lap = 7;
int32 sector = 8; // 0..2
int64 last_lap_ms = 9;
int64 best_lap_ms = 10;
AppliedInput input_applied = 11;
bool dnf = 12;
}
message AppliedInput {
double steering = 1;
double throttle = 2;
double brake = 3;
}
message InputAck {
uint64 seq = 1;
int64 applied_at_ms = 2;
int64 server_tick_ms = 3;
}
message Correction {
uint64 tick = 1;
double delta_steering = 2;
double delta_throttle = 3;
string reason = 4;
}
message RaceEvent {
string race_id = 1;
string event = 2; // "start" | "lap" | "sector" | "dnf" | "finish" | "joined" | "left"
string car_id = 3;
int32 sector = 4;
int64 lap_ms = 5;
int64 ts_ms = 6;
}
message Pong {
int64 client_ts_ms = 1;
int64 server_ts_ms = 2;
}
message ErrorMsg {
string code = 1;
string message = 2;
}