Initial commit: OpenFUT Core

Offline Ultimate Team backend — game-independent REST API.

- 19 API endpoints: auth, profiles, clubs, cards, packs, squads,
  objectives, SBCs, match rewards, NPC market, statistics
- Axum + SQLite + SQLx with full migrations
- Weighted pack generator, SBC validation engine
- JSON-driven mod data (cards, packs, objectives, SBCs)
- 5 integration tests passing

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/services/statistics.rs

@@ -0,0 +1,90 @@
+use crate::{db::Pool, error::AppResult, models::statistics::Statistics};
+
+pub async fn get_or_create(pool: &Pool, profile_id: &str) -> AppResult<Statistics> {
+    let existing = sqlx::query_as::<_, Statistics>(
+        "SELECT profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, updated_at FROM statistics WHERE profile_id = ?"
+    )
+    .bind(profile_id)
+    .fetch_optional(pool)
+    .await?;
+
+    if let Some(s) = existing {
+        return Ok(s);
+    }
+
+    let stats = Statistics::new(profile_id);
+    sqlx::query(
+        "INSERT INTO statistics (profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, updated_at) VALUES (?, 0, 0, 0, 0, 0, 0, 0, 0, 0, ?)"
+    )
+    .bind(profile_id)
+    .bind(&stats.updated_at)
+    .execute(pool)
+    .await?;
+
+    Ok(stats)
+}
+
+pub async fn record_match(
+    pool: &Pool,
+    profile_id: &str,
+    outcome: &str,
+    goals_for: i64,
+    goals_against: i64,
+    coins: i64,
+) -> AppResult<()> {
+    get_or_create(pool, profile_id).await?;
+    let now = chrono::Utc::now().to_rfc3339();
+
+    let (w, d, l) = match outcome {
+        "win" => (1i64, 0i64, 0i64),
+        "draw" => (0, 1, 0),
+        _ => (0, 0, 1),
+    };
+
+    sqlx::query(
+        "UPDATE statistics SET
+            matches_played = matches_played + 1,
+            matches_won = matches_won + ?,
+            matches_drawn = matches_drawn + ?,
+            matches_lost = matches_lost + ?,
+            goals_scored = goals_scored + ?,
+            goals_conceded = goals_conceded + ?,
+            total_coins_earned = total_coins_earned + ?,
+            updated_at = ?
+         WHERE profile_id = ?",
+    )
+    .bind(w)
+    .bind(d)
+    .bind(l)
+    .bind(goals_for)
+    .bind(goals_against)
+    .bind(coins)
+    .bind(&now)
+    .bind(profile_id)
+    .execute(pool)
+    .await?;
+
+    Ok(())
+}
+
+pub async fn increment_packs_opened(pool: &Pool, profile_id: &str) -> AppResult<()> {
+    get_or_create(pool, profile_id).await?;
+    let now = chrono::Utc::now().to_rfc3339();
+    sqlx::query("UPDATE statistics SET packs_opened = packs_opened + 1, updated_at = ? WHERE profile_id = ?")
+        .bind(&now)
+        .bind(profile_id)
+        .execute(pool)
+        .await?;
+    Ok(())
+}
+
+pub async fn increment_sbcs_completed(pool: &Pool, profile_id: &str) -> AppResult<()> {
+    get_or_create(pool, profile_id).await?;
+    let now = chrono::Utc::now().to_rfc3339();
+    sqlx::query("UPDATE statistics SET sbcs_completed = sbcs_completed + 1, updated_at = ? WHERE profile_id = ?")
+        .bind(&now)
+        .bind(profile_id)
+        .execute(pool)
+        .await?;
+    Ok(())
+}