add fixture-backed admin and ios scaffold

backend/src/admin/mod.rs

@@ -0,0 +1,5 @@
+pub use crate::events::{
+    EventManifestSnapshot, EventMediaSnapshot, EventSnapshot, MarketSnapshot, OutcomeSnapshot,
+};
+pub use crate::markets::{OddsVersionSnapshot, OutcomeOddsSnapshot};
+pub use crate::settlement::SettlementSnapshot;

backend/src/app_state.rs

@@ -9,10 +9,9 @@ pub use crate::analytics::{AnalyticsBatchRequest, AnalyticsEventInput, Attribute
 pub use crate::bets::{BetIntentRecord, BetIntentRequest, BetIntentResponse};
 pub use crate::events::{EventManifestSnapshot, EventSnapshot};
 pub use crate::events::{MarketSnapshot, OutcomeSnapshot};
+pub use crate::admin::{EventMediaSnapshot, OddsVersionSnapshot, OutcomeOddsSnapshot, SettlementSnapshot};
 pub use crate::experiments::ExperimentConfigSnapshot;
 pub use crate::localization::LocalizationBundleSnapshot;
-pub use crate::markets::{OddsVersionSnapshot, OutcomeOddsSnapshot};
-pub use crate::settlement::SettlementSnapshot;
 pub use crate::sessions::{SessionSnapshot, SessionStartRequest};
 
 use crate::{
@@ -257,6 +256,54 @@ impl AppState {
             .map_err(|_| AppError::not_found("No active session"))
     }
 
+    pub async fn admin_create_event_manifest(
+        &self,
+        manifest: EventManifestSnapshot,
+    ) -> Result<EventManifestSnapshot, AppError> {
+        let created = self.events.insert_manifest(manifest.clone()).await;
+
+        for market in &created.markets {
+            self.markets.insert_market(market.clone()).await;
+        }
+
+        Ok(created)
+    }
+
+    pub async fn admin_create_market(
+        &self,
+        market: MarketSnapshot,
+    ) -> Result<MarketSnapshot, AppError> {
+        let Some(_) = self.event(market.event_id).await else {
+            return Err(AppError::not_found("Event not found"));
+        };
+
+        self.markets.insert_market(market.clone()).await;
+        let _ = self.events.insert_market(market.event_id, market.clone()).await;
+        Ok(market)
+    }
+
+    pub async fn admin_publish_odds(
+        &self,
+        odds: OddsVersionSnapshot,
+    ) -> Result<OddsVersionSnapshot, AppError> {
+        let Some(_) = self.markets.market(odds.market_id).await else {
+            return Err(AppError::not_found("Market not found"));
+        };
+
+        Ok(self.markets.publish_odds(odds).await)
+    }
+
+    pub async fn admin_publish_settlement(
+        &self,
+        settlement: SettlementSnapshot,
+    ) -> Result<SettlementSnapshot, AppError> {
+        let Some(market) = self.markets.market(settlement.market_id).await else {
+            return Err(AppError::not_found("Market not found"));
+        };
+
+        Ok(self.settlements.upsert(market.event_id, settlement).await)
+    }
+
     pub async fn next_event(&self) -> Option<EventSnapshot> {
         self.events.next_event().await
     }

backend/src/bin/generate_test_event.rs

@@ -0,0 +1,9 @@
+#![forbid(unsafe_code)]
+
+use serde_json as json;
+
+fn main() {
+    let fixture = hermes_backend::fixtures::build_sample_study_fixture();
+    let output = json::to_string_pretty(&fixture).expect("valid test event fixture");
+    println!("{output}");
+}

backend/src/events/mod.rs

@@ -5,6 +5,8 @@ use serde::{Deserialize, Serialize};
 use tokio::sync::RwLock;
 use uuid::Uuid;
 
+use crate::fixtures::SampleStudyFixture;
+
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct EventSnapshot {
     pub id: Uuid,
@@ -76,9 +78,22 @@ struct EventsState {
 
 impl EventsStore {
     pub fn new() -> Self {
-        Self::with_sample_data()
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
     }
 
+    pub fn from_fixture(fixture: &SampleStudyFixture) -> Self {
+        let mut manifests_by_event_id = HashMap::new();
+        manifests_by_event_id.insert(fixture.manifest.event.id, fixture.manifest.clone());
+
+        Self {
+            inner: Arc::new(RwLock::new(EventsState {
+                feed_order: vec![fixture.manifest.event.id],
+                manifests_by_event_id,
+            })),
+        }
+    }
+
+    #[allow(dead_code, unused_variables)]
     pub fn with_sample_data() -> Self {
         let event_id = Uuid::parse_str("11111111-1111-1111-1111-111111111111").expect("valid uuid");
         let market_id = Uuid::parse_str("22222222-2222-2222-2222-222222222222").expect("valid uuid");
@@ -152,12 +167,32 @@ impl EventsStore {
         let mut manifests_by_event_id = HashMap::new();
         manifests_by_event_id.insert(event_id, manifest);
 
-        Self {
-            inner: Arc::new(RwLock::new(EventsState {
-                feed_order: vec![event_id],
-                manifests_by_event_id,
-            })),
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
+    }
+
+    pub async fn insert_manifest(&self, manifest: EventManifestSnapshot) -> EventManifestSnapshot {
+        let mut state = self.inner.write().await;
+        let event_id = manifest.event.id;
+        if !state.manifests_by_event_id.contains_key(&event_id) {
+            state.feed_order.push(event_id);
         }
+        state.manifests_by_event_id.insert(event_id, manifest.clone());
+        manifest
+    }
+
+    pub async fn insert_market(&self, event_id: Uuid, market: MarketSnapshot) -> bool {
+        let mut state = self.inner.write().await;
+        let Some(manifest) = state.manifests_by_event_id.get_mut(&event_id) else {
+            return false;
+        };
+
+        let Some(existing) = manifest.markets.iter_mut().find(|existing| existing.id == market.id) else {
+            manifest.markets.push(market);
+            return true;
+        };
+
+        *existing = market;
+        true
     }
 
     pub async fn next_event(&self) -> Option<EventSnapshot> {

backend/src/fixtures/mod.rs

@@ -0,0 +1,153 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+use serde_json as json;
+use uuid::Uuid;
+
+use crate::{
+    events::{
+        EventManifestSnapshot, EventMediaSnapshot, EventSnapshot, MarketSnapshot, OutcomeSnapshot,
+    },
+    markets::{OddsVersionSnapshot, OutcomeOddsSnapshot},
+    settlement::SettlementSnapshot,
+};
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct SettlementFixture {
+    pub event_id: Uuid,
+    pub settlement: SettlementSnapshot,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct SampleStudyFixture {
+    pub manifest: EventManifestSnapshot,
+    pub odds_versions: Vec<OddsVersionSnapshot>,
+    pub settlement: SettlementFixture,
+}
+
+pub fn load_sample_study_fixture() -> SampleStudyFixture {
+    let raw = include_str!("../../../fixtures/manifests/sample_event.json");
+    json::from_str(raw).expect("valid sample study fixture")
+}
+
+pub fn build_sample_study_fixture() -> SampleStudyFixture {
+    let event_id = Uuid::parse_str("11111111-1111-1111-1111-111111111111").expect("valid uuid");
+    let market_id = Uuid::parse_str("22222222-2222-2222-2222-222222222222").expect("valid uuid");
+    let odds_version_id =
+        Uuid::parse_str("66666666-6666-6666-6666-666666666666").expect("valid uuid");
+    let lock_at = parse_ts("2099-01-01T00:10:00Z");
+    let settle_at = parse_ts("2099-01-01T00:25:00Z");
+    let created_at = parse_ts("2099-01-01T00:00:00Z");
+
+    let home_outcome_id =
+        Uuid::parse_str("44444444-4444-4444-4444-444444444444").expect("valid uuid");
+    let away_outcome_id =
+        Uuid::parse_str("55555555-5555-5555-5555-555555555555").expect("valid uuid");
+
+    let event = EventSnapshot {
+        id: event_id,
+        sport_type: "football".to_string(),
+        source_ref: "sample-event-001".to_string(),
+        title_en: "Late winner chance".to_string(),
+        title_sv: "Möjlighet till segermål".to_string(),
+        status: "prefetch_ready".to_string(),
+        preview_start_ms: 0,
+        preview_end_ms: 45_000,
+        reveal_start_ms: 50_000,
+        reveal_end_ms: 90_000,
+        lock_at,
+        settle_at,
+    };
+
+    let media = EventMediaSnapshot {
+        id: Uuid::parse_str("33333333-3333-3333-3333-333333333333").expect("valid uuid"),
+        event_id,
+        media_type: "hls_main".to_string(),
+        hls_master_url: "https://cdn.example.com/hermes/sample-event/master.m3u8".to_string(),
+        poster_url: Some("https://cdn.example.com/hermes/sample-event/poster.jpg".to_string()),
+        duration_ms: 90_000,
+        preview_start_ms: 0,
+        preview_end_ms: 45_000,
+        reveal_start_ms: 50_000,
+        reveal_end_ms: 90_000,
+    };
+
+    let outcomes = vec![
+        OutcomeSnapshot {
+            id: home_outcome_id,
+            market_id,
+            outcome_code: "home".to_string(),
+            label_key: "outcome.home".to_string(),
+            sort_order: 1,
+        },
+        OutcomeSnapshot {
+            id: away_outcome_id,
+            market_id,
+            outcome_code: "away".to_string(),
+            label_key: "outcome.away".to_string(),
+            sort_order: 2,
+        },
+    ];
+
+    let market = MarketSnapshot {
+        id: market_id,
+        event_id,
+        question_key: "market.sample.winner".to_string(),
+        market_type: "winner".to_string(),
+        status: "open".to_string(),
+        lock_at,
+        settlement_rule_key: "settle_on_match_winner".to_string(),
+        outcomes,
+    };
+
+    let odds_version = OddsVersionSnapshot {
+        id: odds_version_id,
+        market_id,
+        version_no: 1,
+        created_at,
+        is_current: true,
+        odds: vec![
+            OutcomeOddsSnapshot {
+                id: Uuid::parse_str("77777777-7777-7777-7777-777777777777").expect("valid uuid"),
+                odds_version_id,
+                outcome_id: home_outcome_id,
+                decimal_odds: 1.85,
+                fractional_num: 17,
+                fractional_den: 20,
+            },
+            OutcomeOddsSnapshot {
+                id: Uuid::parse_str("88888888-8888-8888-8888-888888888888").expect("valid uuid"),
+                odds_version_id,
+                outcome_id: away_outcome_id,
+                decimal_odds: 2.05,
+                fractional_num: 21,
+                fractional_den: 20,
+            },
+        ],
+    };
+
+    let settlement = SettlementFixture {
+        event_id,
+        settlement: SettlementSnapshot {
+            id: Uuid::parse_str("99999999-9999-9999-9999-999999999999").expect("valid uuid"),
+            market_id,
+            settled_at: settle_at,
+            winning_outcome_id: home_outcome_id,
+        },
+    };
+
+    SampleStudyFixture {
+        manifest: EventManifestSnapshot {
+            event,
+            media: vec![media],
+            markets: vec![market],
+        },
+        odds_versions: vec![odds_version],
+        settlement,
+    }
+}
+
+fn parse_ts(value: &str) -> DateTime<Utc> {
+    DateTime::parse_from_rfc3339(value)
+        .expect("valid timestamp")
+        .with_timezone(&Utc)
+}

backend/src/lib.rs

@@ -1,6 +1,7 @@
 #![forbid(unsafe_code)]
 
 pub mod analytics;
+pub mod admin;
 pub mod bets;
 pub mod app_state;
 pub mod config;
@@ -8,6 +9,7 @@ pub mod db;
 pub mod events;
 pub mod error;
 pub mod experiments;
+pub mod fixtures;
 pub mod localization;
 pub mod markets;
 pub mod settlement;

backend/src/markets/mod.rs

@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 use tokio::sync::RwLock;
 use uuid::Uuid;
 
+use crate::fixtures::SampleStudyFixture;
 use crate::events::{MarketSnapshot, OutcomeSnapshot};
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
@@ -42,9 +43,46 @@ struct MarketsState {
 
 impl MarketsStore {
     pub fn new() -> Self {
-        Self::with_sample_data()
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
     }
 
+    pub fn from_fixture(fixture: &SampleStudyFixture) -> Self {
+        let mut markets_by_event_id: HashMap<Uuid, Vec<MarketSnapshot>> = HashMap::new();
+        let mut markets_by_id = HashMap::new();
+        let mut outcomes_by_id = HashMap::new();
+        let mut current_odds_by_market_id = HashMap::new();
+
+        for market_fixture in &fixture.manifest.markets {
+            let market = market_fixture.clone();
+            markets_by_event_id.entry(market.event_id).or_default().push(market.clone());
+            markets_by_id.insert(market.id, market.clone());
+
+            for outcome in &market.outcomes {
+                outcomes_by_id.insert(outcome.id, outcome.clone());
+            }
+
+            let Some(odds_version) = fixture
+                .odds_versions
+                .iter()
+                .find(|odds_version| odds_version.market_id == market.id)
+                .cloned() else {
+                continue;
+            };
+
+            current_odds_by_market_id.insert(market.id, odds_version);
+        }
+
+        Self {
+            inner: Arc::new(RwLock::new(MarketsState {
+                markets_by_event_id,
+                markets_by_id,
+                outcomes_by_id,
+                current_odds_by_market_id,
+            })),
+        }
+    }
+
+    #[allow(dead_code, unused_variables)]
     pub fn with_sample_data() -> Self {
         let event_id = Uuid::parse_str("11111111-1111-1111-1111-111111111111").expect("valid uuid");
         let market_id = Uuid::parse_str("22222222-2222-2222-2222-222222222222").expect("valid uuid");
@@ -123,14 +161,35 @@ impl MarketsStore {
         let mut current_odds_by_market_id = HashMap::new();
         current_odds_by_market_id.insert(market_id, odds_version);
 
-        Self {
-            inner: Arc::new(RwLock::new(MarketsState {
-                markets_by_event_id,
-                markets_by_id,
-                outcomes_by_id,
-                current_odds_by_market_id,
-            })),
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
+    }
+
+    pub async fn insert_market(&self, market: MarketSnapshot) -> MarketSnapshot {
+        let mut state = self.inner.write().await;
+
+        state
+            .markets_by_event_id
+            .entry(market.event_id)
+            .or_default()
+            .retain(|existing| existing.id != market.id);
+        state
+            .markets_by_event_id
+            .entry(market.event_id)
+            .or_default()
+            .push(market.clone());
+        state.markets_by_id.insert(market.id, market.clone());
+
+        for outcome in &market.outcomes {
+            state.outcomes_by_id.insert(outcome.id, outcome.clone());
         }
+
+        market
+    }
+
+    pub async fn publish_odds(&self, odds: OddsVersionSnapshot) -> OddsVersionSnapshot {
+        let mut state = self.inner.write().await;
+        state.current_odds_by_market_id.insert(odds.market_id, odds.clone());
+        odds
     }
 
     pub async fn markets_for_event(&self, event_id: Uuid) -> Option<Vec<MarketSnapshot>> {

backend/src/routes/admin.rs

@@ -0,0 +1,38 @@
+use axum::{extract::{Extension, Json}, http::StatusCode};
+
+use crate::{
+    app_state::{AppState, EventManifestSnapshot, MarketSnapshot, OddsVersionSnapshot, SettlementSnapshot},
+    error::AppError,
+};
+
+pub async fn create_event(
+    Extension(state): Extension<AppState>,
+    Json(payload): Json<EventManifestSnapshot>,
+) -> Result<(StatusCode, Json<EventManifestSnapshot>), AppError> {
+    let created = state.admin_create_event_manifest(payload).await?;
+    Ok((StatusCode::CREATED, Json(created)))
+}
+
+pub async fn create_market(
+    Extension(state): Extension<AppState>,
+    Json(payload): Json<MarketSnapshot>,
+) -> Result<(StatusCode, Json<MarketSnapshot>), AppError> {
+    let created = state.admin_create_market(payload).await?;
+    Ok((StatusCode::CREATED, Json(created)))
+}
+
+pub async fn create_odds(
+    Extension(state): Extension<AppState>,
+    Json(payload): Json<OddsVersionSnapshot>,
+) -> Result<(StatusCode, Json<OddsVersionSnapshot>), AppError> {
+    let created = state.admin_publish_odds(payload).await?;
+    Ok((StatusCode::CREATED, Json(created)))
+}
+
+pub async fn create_settlement(
+    Extension(state): Extension<AppState>,
+    Json(payload): Json<SettlementSnapshot>,
+) -> Result<(StatusCode, Json<SettlementSnapshot>), AppError> {
+    let created = state.admin_publish_settlement(payload).await?;
+    Ok((StatusCode::CREATED, Json(created)))
+}

backend/src/routes/mod.rs

@@ -1,4 +1,5 @@
 pub mod health;
+pub mod admin;
 pub mod analytics;
 pub mod bets;
 pub mod events;
@@ -19,6 +20,10 @@ pub fn router() -> Router {
         .route("/api/v1/events/{event_id}/markets", get(markets::list_for_event))
         .route("/api/v1/events/{event_id}/result", get(results::show))
         .route("/api/v1/markets/{market_id}/odds/current", get(markets::current_odds))
+        .route("/api/v1/admin/events", post(admin::create_event))
+        .route("/api/v1/admin/markets", post(admin::create_market))
+        .route("/api/v1/admin/odds", post(admin::create_odds))
+        .route("/api/v1/admin/settlements", post(admin::create_settlement))
         .route("/api/v1/bets/intent", post(bets::submit))
         .route("/api/v1/bets/{bet_intent_id}", get(bets::show))
         .route("/api/v1/analytics/batch", post(analytics::batch))

backend/src/settlement/mod.rs

@@ -1,9 +1,12 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
 use chrono::{DateTime, Duration as ChronoDuration, Utc};
 use serde::{Deserialize, Serialize};
+use tokio::sync::RwLock;
 use uuid::Uuid;
 
+use crate::fixtures::SampleStudyFixture;
+
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct SettlementSnapshot {
     pub id: Uuid,
@@ -14,15 +17,39 @@ pub struct SettlementSnapshot {
 
 #[derive(Clone, Default)]
 pub struct SettlementsStore {
+    inner: Arc<RwLock<SettlementsState>>,
+}
+
+#[derive(Default)]
+struct SettlementsState {
     settlements_by_event_id: HashMap<Uuid, SettlementSnapshot>,
     settlements_by_market_id: HashMap<Uuid, SettlementSnapshot>,
 }
 
 impl SettlementsStore {
     pub fn new() -> Self {
-        Self::with_sample_data()
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
     }
 
+    pub fn from_fixture(fixture: &SampleStudyFixture) -> Self {
+        let mut settlements_by_event_id = HashMap::new();
+        settlements_by_event_id.insert(fixture.settlement.event_id, fixture.settlement.settlement.clone());
+
+        let mut settlements_by_market_id = HashMap::new();
+        settlements_by_market_id.insert(
+            fixture.settlement.settlement.market_id,
+            fixture.settlement.settlement.clone(),
+        );
+
+        Self {
+            inner: Arc::new(RwLock::new(SettlementsState {
+                settlements_by_event_id,
+                settlements_by_market_id,
+            })),
+        }
+    }
+
+    #[allow(dead_code, unused_variables)]
     pub fn with_sample_data() -> Self {
         let event_id = Uuid::parse_str("11111111-1111-1111-1111-111111111111").expect("valid uuid");
         let market_id = Uuid::parse_str("22222222-2222-2222-2222-222222222222").expect("valid uuid");
@@ -41,23 +68,31 @@ impl SettlementsStore {
         let mut settlements_by_market_id = HashMap::new();
         settlements_by_market_id.insert(market_id, settlement.clone());
 
-        Self {
-            settlements_by_event_id,
-            settlements_by_market_id,
-        }
+        Self::from_fixture(&crate::fixtures::load_sample_study_fixture())
     }
 
     pub async fn settlement_for_event(&self, event_id: Uuid) -> Option<SettlementSnapshot> {
-        let Some(settlement) = self.settlements_by_event_id.get(&event_id) else {
+        let state = self.inner.read().await;
+        let Some(settlement) = state.settlements_by_event_id.get(&event_id) else {
             return None;
         };
         Some(settlement.clone())
     }
 
     pub async fn settlement_for_market(&self, market_id: Uuid) -> Option<SettlementSnapshot> {
-        let Some(settlement) = self.settlements_by_market_id.get(&market_id) else {
+        let state = self.inner.read().await;
+        let Some(settlement) = state.settlements_by_market_id.get(&market_id) else {
             return None;
         };
         Some(settlement.clone())
     }
+
+    pub async fn upsert(&self, event_id: Uuid, settlement: SettlementSnapshot) -> SettlementSnapshot {
+        let mut state = self.inner.write().await;
+        state.settlements_by_event_id.insert(event_id, settlement.clone());
+        state
+            .settlements_by_market_id
+            .insert(settlement.market_id, settlement.clone());
+        settlement
+    }
 }

backend/tests/api_smoke.rs

@@ -2,6 +2,7 @@ use axum::{body::{to_bytes, Body}, http::{Request, StatusCode}};
 use chrono::Utc;
 use hermes_backend::{app_state::AppState, build_router, config::AppConfig};
 use serde_json as json;
+use uuid::Uuid;
 use tower::ServiceExt;
 
 #[tokio::test]
@@ -410,6 +411,223 @@ async fn analytics_batch_is_recorded() {
     assert_eq!(attribute_count, 1);
 }
 
+#[tokio::test]
+async fn admin_endpoints_publish_round_data() {
+    let app = build_router(AppState::new(AppConfig::default(), None, None));
+
+    let event_id = Uuid::new_v4();
+    let market_id = Uuid::new_v4();
+    let home_outcome_id = Uuid::new_v4();
+    let away_outcome_id = Uuid::new_v4();
+    let odds_version_id = Uuid::new_v4();
+
+    let event_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .method("POST")
+                .uri("/api/v1/admin/events")
+                .header("content-type", "application/json")
+                .body(Body::from(
+                    json::json!({
+                        "event": {
+                            "id": event_id,
+                            "sport_type": "football",
+                            "source_ref": "admin-event-001",
+                            "title_en": "Admin created event",
+                            "title_sv": "Adminskapad händelse",
+                            "status": "scheduled",
+                            "preview_start_ms": 0,
+                            "preview_end_ms": 1000,
+                            "reveal_start_ms": 2000,
+                            "reveal_end_ms": 3000,
+                            "lock_at": "2099-01-01T01:10:00Z",
+                            "settle_at": "2099-01-01T01:25:00Z"
+                        },
+                        "media": [
+                            {
+                                "id": Uuid::new_v4(),
+                                "event_id": event_id,
+                                "media_type": "hls_main",
+                                "hls_master_url": "https://cdn.example.com/admin/master.m3u8",
+                                "poster_url": "https://cdn.example.com/admin/poster.jpg",
+                                "duration_ms": 3000,
+                                "preview_start_ms": 0,
+                                "preview_end_ms": 1000,
+                                "reveal_start_ms": 2000,
+                                "reveal_end_ms": 3000
+                            }
+                        ],
+                        "markets": []
+                    })
+                    .to_string(),
+                ))
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(event_response.status(), StatusCode::CREATED);
+
+    let market_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .method("POST")
+                .uri("/api/v1/admin/markets")
+                .header("content-type", "application/json")
+                .body(Body::from(
+                    json::json!({
+                        "id": market_id,
+                        "event_id": event_id,
+                        "question_key": "market.admin.winner",
+                        "market_type": "winner",
+                        "status": "open",
+                        "lock_at": "2099-01-01T01:10:00Z",
+                        "settlement_rule_key": "settle_on_match_winner",
+                        "outcomes": [
+                            {
+                                "id": home_outcome_id,
+                                "market_id": market_id,
+                                "outcome_code": "home",
+                                "label_key": "outcome.home",
+                                "sort_order": 1
+                            },
+                            {
+                                "id": away_outcome_id,
+                                "market_id": market_id,
+                                "outcome_code": "away",
+                                "label_key": "outcome.away",
+                                "sort_order": 2
+                            }
+                        ]
+                    })
+                    .to_string(),
+                ))
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(market_response.status(), StatusCode::CREATED);
+
+    let odds_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .method("POST")
+                .uri("/api/v1/admin/odds")
+                .header("content-type", "application/json")
+                .body(Body::from(
+                    json::json!({
+                        "id": odds_version_id,
+                        "market_id": market_id,
+                        "version_no": 1,
+                        "created_at": "2099-01-01T01:00:00Z",
+                        "is_current": true,
+                        "odds": [
+                            {
+                                "id": Uuid::new_v4(),
+                                "odds_version_id": odds_version_id,
+                                "outcome_id": home_outcome_id,
+                                "decimal_odds": 1.9,
+                                "fractional_num": 9,
+                                "fractional_den": 10
+                            },
+                            {
+                                "id": Uuid::new_v4(),
+                                "odds_version_id": odds_version_id,
+                                "outcome_id": away_outcome_id,
+                                "decimal_odds": 2.1,
+                                "fractional_num": 11,
+                                "fractional_den": 10
+                            }
+                        ]
+                    })
+                    .to_string(),
+                ))
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(odds_response.status(), StatusCode::CREATED);
+
+    let settlement_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .method("POST")
+                .uri("/api/v1/admin/settlements")
+                .header("content-type", "application/json")
+                .body(Body::from(
+                    json::json!({
+                        "id": Uuid::new_v4(),
+                        "market_id": market_id,
+                        "settled_at": "2099-01-01T01:25:00Z",
+                        "winning_outcome_id": home_outcome_id
+                    })
+                    .to_string(),
+                ))
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(settlement_response.status(), StatusCode::CREATED);
+
+    let manifest_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .uri(format!("/api/v1/events/{event_id}/manifest"))
+                .body(Body::empty())
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(manifest_response.status(), StatusCode::OK);
+
+    let manifest_body = to_bytes(manifest_response.into_body(), usize::MAX).await.unwrap();
+    let manifest_json: json::Value = json::from_slice(&manifest_body).unwrap();
+    assert_eq!(manifest_json["markets"].as_array().unwrap().len(), 1);
+
+    let odds_response = app
+        .clone()
+        .oneshot(
+            Request::builder()
+                .uri(format!("/api/v1/markets/{market_id}/odds/current"))
+                .body(Body::empty())
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(odds_response.status(), StatusCode::OK);
+
+    let odds_body = to_bytes(odds_response.into_body(), usize::MAX).await.unwrap();
+    let odds_json: json::Value = json::from_slice(&odds_body).unwrap();
+    assert_eq!(odds_json["id"], odds_version_id.to_string());
+
+    let result_response = app
+        .oneshot(
+            Request::builder()
+                .uri(format!("/api/v1/events/{event_id}/result"))
+                .body(Body::empty())
+                .unwrap(),
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(result_response.status(), StatusCode::OK);
+
+    let result_body = to_bytes(result_response.into_body(), usize::MAX).await.unwrap();
+    let result_json: json::Value = json::from_slice(&result_body).unwrap();
+    assert_eq!(result_json["market_id"], market_id.to_string());
+    assert_eq!(result_json["winning_outcome_id"], home_outcome_id.to_string());
+}
+
 #[tokio::test]
 async fn event_markets_and_current_odds_work() {
     let app = build_router(AppState::new(AppConfig::default(), None, None));

fixtures/manifests/sample_event.json

@@ -0,0 +1,95 @@
+{
+  "manifest": {
+    "event": {
+      "id": "11111111-1111-1111-1111-111111111111",
+      "sport_type": "football",
+      "source_ref": "sample-event-001",
+      "title_en": "Late winner chance",
+      "title_sv": "Möjlighet till segermål",
+      "status": "prefetch_ready",
+      "preview_start_ms": 0,
+      "preview_end_ms": 45000,
+      "reveal_start_ms": 50000,
+      "reveal_end_ms": 90000,
+      "lock_at": "2099-01-01T00:10:00Z",
+      "settle_at": "2099-01-01T00:25:00Z"
+    },
+    "media": [
+      {
+        "id": "33333333-3333-3333-3333-333333333333",
+        "event_id": "11111111-1111-1111-1111-111111111111",
+        "media_type": "hls_main",
+        "hls_master_url": "https://cdn.example.com/hermes/sample-event/master.m3u8",
+        "poster_url": "https://cdn.example.com/hermes/sample-event/poster.jpg",
+        "duration_ms": 90000,
+        "preview_start_ms": 0,
+        "preview_end_ms": 45000,
+        "reveal_start_ms": 50000,
+        "reveal_end_ms": 90000
+      }
+    ],
+    "markets": [
+      {
+        "id": "22222222-2222-2222-2222-222222222222",
+        "event_id": "11111111-1111-1111-1111-111111111111",
+        "question_key": "market.sample.winner",
+        "market_type": "winner",
+        "status": "open",
+        "lock_at": "2099-01-01T00:10:00Z",
+        "settlement_rule_key": "settle_on_match_winner",
+        "outcomes": [
+          {
+            "id": "44444444-4444-4444-4444-444444444444",
+            "market_id": "22222222-2222-2222-2222-222222222222",
+            "outcome_code": "home",
+            "label_key": "outcome.home",
+            "sort_order": 1
+          },
+          {
+            "id": "55555555-5555-5555-5555-555555555555",
+            "market_id": "22222222-2222-2222-2222-222222222222",
+            "outcome_code": "away",
+            "label_key": "outcome.away",
+            "sort_order": 2
+          }
+        ]
+      }
+    ]
+  },
+  "odds_versions": [
+    {
+      "id": "66666666-6666-6666-6666-666666666666",
+      "market_id": "22222222-2222-2222-2222-222222222222",
+      "version_no": 1,
+      "created_at": "2099-01-01T00:00:00Z",
+      "is_current": true,
+      "odds": [
+        {
+          "id": "77777777-7777-7777-7777-777777777777",
+          "odds_version_id": "66666666-6666-6666-6666-666666666666",
+          "outcome_id": "44444444-4444-4444-4444-444444444444",
+          "decimal_odds": 1.85,
+          "fractional_num": 17,
+          "fractional_den": 20
+        },
+        {
+          "id": "88888888-8888-8888-8888-888888888888",
+          "odds_version_id": "66666666-6666-6666-6666-666666666666",
+          "outcome_id": "55555555-5555-5555-5555-555555555555",
+          "decimal_odds": 2.05,
+          "fractional_num": 21,
+          "fractional_den": 20
+        }
+      ]
+    }
+  ],
+  "settlement": {
+    "event_id": "11111111-1111-1111-1111-111111111111",
+    "settlement": {
+      "id": "99999999-9999-9999-9999-999999999999",
+      "market_id": "22222222-2222-2222-2222-222222222222",
+      "settled_at": "2099-01-01T00:25:00Z",
+      "winning_outcome_id": "44444444-4444-4444-4444-444444444444"
+    }
+  }
+}

mobile/ios-app/App/HermesApp.swift

@@ -0,0 +1,10 @@
+import SwiftUI
+
+@main
+struct HermesApp: App {
+    var body: some Scene {
+        WindowGroup {
+            RootView()
+        }
+    }
+}

mobile/ios-app/App/RootView.swift

@@ -0,0 +1,18 @@
+import SwiftUI
+
+struct RootView: View {
+    var body: some View {
+        NavigationStack {
+            VStack(spacing: 16) {
+                Text("Hermes")
+                    .font(.largeTitle.bold())
+                Text("Native study app scaffold")
+                    .font(.body)
+                    .foregroundStyle(.secondary)
+                OnboardingView()
+            }
+            .padding()
+            .navigationTitle("Hermes")
+        }
+    }
+}

mobile/ios-app/Core/Analytics/AnalyticsClient.swift

@@ -0,0 +1,13 @@
+import Foundation
+
+protocol AnalyticsTracking {
+    func track(_ event: String, attributes: [String: String])
+}
+
+final class HermesAnalyticsClient: AnalyticsTracking {
+    func track(_ event: String, attributes: [String: String]) {
+        // Scaffold implementation.
+        _ = event
+        _ = attributes
+    }
+}

mobile/ios-app/Core/DesignSystem/Theme.swift

@@ -0,0 +1,9 @@
+import SwiftUI
+
+enum HermesTheme {
+    static let background = Color.black
+    static let surface = Color(red: 0.12, green: 0.12, blue: 0.14)
+    static let accent = Color(red: 0.87, green: 0.74, blue: 0.34)
+    static let textPrimary = Color.white
+    static let textSecondary = Color.white.opacity(0.72)
+}

mobile/ios-app/Core/Gestures/GestureHandlers.swift

@@ -0,0 +1,6 @@
+import Foundation
+
+struct GestureHandlers {
+    func handleTap() {}
+    func handleSwipeDown() {}
+}

mobile/ios-app/Core/Haptics/HapticsController.swift

@@ -0,0 +1,6 @@
+import Foundation
+
+final class HapticsController {
+    func selectionAccepted() {}
+    func marketLocked() {}
+}

mobile/ios-app/Core/Localization/LocalizationStore.swift

@@ -0,0 +1,18 @@
+import Foundation
+
+final class LocalizationStore {
+    private let bundle: Bundle
+
+    init(bundle: Bundle = .main) {
+        self.bundle = bundle
+    }
+
+    func string(for key: String, locale: String) -> String {
+        guard let path = bundle.path(forResource: locale, ofType: "lproj"),
+              let localizedBundle = Bundle(path: path) else {
+            return bundle.localizedString(forKey: key, value: nil, table: nil)
+        }
+
+        return localizedBundle.localizedString(forKey: key, value: nil, table: nil)
+    }
+}

mobile/ios-app/Core/Media/PlayerCoordinator.swift

@@ -0,0 +1,6 @@
+import Foundation
+
+final class PlayerCoordinator: ObservableObject {
+    @Published var isPlaying = false
+    @Published var playbackPositionMs: Int = 0
+}

mobile/ios-app/Core/Networking/APIClient.swift

@@ -0,0 +1,24 @@
+import Foundation
+
+struct APIEnvironment {
+    let baseURL: URL
+}
+
+struct HermesAPIClient {
+    let environment: APIEnvironment
+    let session: URLSession
+
+    init(environment: APIEnvironment, session: URLSession = .shared) {
+        self.environment = environment
+        self.session = session
+    }
+
+    func get(path: String) async throws -> (Data, HTTPURLResponse) {
+        let url = environment.baseURL.appendingPathComponent(path)
+        let (data, response) = try await session.data(from: url)
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw URLError(.badServerResponse)
+        }
+        return (data, httpResponse)
+    }
+}

mobile/ios-app/Features/Feed/FeedView.swift

@@ -0,0 +1,15 @@
+import SwiftUI
+
+struct FeedView: View {
+    var body: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Next round")
+                .font(.headline)
+            Text("A new clip is ready for review.")
+                .foregroundStyle(.secondary)
+        }
+        .padding()
+        .background(HermesTheme.surface)
+        .clipShape(RoundedRectangle(cornerRadius: 20, style: .continuous))
+    }
+}

mobile/ios-app/Features/Onboarding/OnboardingView.swift

@@ -0,0 +1,18 @@
+import SwiftUI
+
+struct OnboardingView: View {
+    var body: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Study intro")
+                .font(.headline)
+            Text("Watch the clip, make your choice before lock, then see the reveal.")
+                .foregroundStyle(.secondary)
+            Button("Start session") {}
+                .buttonStyle(.borderedProminent)
+        }
+        .padding()
+        .background(HermesTheme.surface)
+        .foregroundStyle(HermesTheme.textPrimary)
+        .clipShape(RoundedRectangle(cornerRadius: 20, style: .continuous))
+    }
+}

mobile/ios-app/Features/Result/ResultView.swift

@@ -0,0 +1,7 @@
+import SwiftUI
+
+struct ResultView: View {
+    var body: some View {
+        Text("Result scaffold")
+    }
+}

mobile/ios-app/Features/Reveal/RevealView.swift

@@ -0,0 +1,7 @@
+import SwiftUI
+
+struct RevealView: View {
+    var body: some View {
+        Text("Reveal scaffold")
+    }
+}

mobile/ios-app/Features/Round/RoundView.swift

@@ -0,0 +1,8 @@
+import SwiftUI
+
+struct RoundView: View {
+    var body: some View {
+        Text("Round scaffold")
+            .padding()
+    }
+}

mobile/ios-app/Features/Selection/SelectionView.swift

@@ -0,0 +1,7 @@
+import SwiftUI
+
+struct SelectionView: View {
+    var body: some View {
+        Text("Selection scaffold")
+    }
+}

mobile/ios-app/Features/Session/SessionView.swift

@@ -0,0 +1,7 @@
+import SwiftUI
+
+struct SessionView: View {
+    var body: some View {
+        Text("Session scaffold")
+    }
+}

mobile/ios-app/Features/Settings/SettingsView.swift

@@ -0,0 +1,7 @@
+import SwiftUI
+
+struct SettingsView: View {
+    var body: some View {
+        Text("Settings scaffold")
+    }
+}

mobile/ios-app/Resources/Localization/en.lproj/Localizable.strings

@@ -0,0 +1,4 @@
+"app.name" = "Hermes";
+"onboarding.title" = "Study intro";
+"onboarding.start_session" = "Start session";
+"feed.next_round_title" = "Next round";

mobile/ios-app/Resources/Localization/sv.lproj/Localizable.strings

@@ -0,0 +1,4 @@
+"app.name" = "Hermes";
+"onboarding.title" = "Studieintro";
+"onboarding.start_session" = "Starta session";
+"feed.next_round_title" = "Nästa runda";

scripts/generate_test_event.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cargo run --quiet --manifest-path "backend/Cargo.toml" --bin generate_test_event

scripts/seed_fixtures.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+./scripts/generate_test_event.sh > fixtures/manifests/sample_event.json