movie detail page + importer architecture fix

crates/adapters/postgres/Cargo.toml

@@ -18,3 +18,5 @@ chrono      = { workspace = true }
 tracing     = { workspace = true }
 async-trait = { workspace = true }
 tokio       = { workspace = true }
+serde       = { workspace = true, features = ["derive"] }
+serde_json  = { workspace = true }

crates/adapters/postgres/src/import_profile.rs

@@ -2,12 +2,84 @@ use async_trait::async_trait;
 use chrono::NaiveDateTime;
 use domain::{
     errors::DomainError,
-    models::ImportProfile,
+    models::{
+        FieldMapping, ImportProfile,
+        import::{DomainField, Transform},
+    },
     ports::ImportProfileRepository,
     value_objects::{ImportProfileId, UserId},
 };
+use serde::{Deserialize, Serialize};
 use sqlx::PgPool;
 
+#[derive(Serialize, Deserialize)]
+enum DomainFieldJson {
+    Title, ReleaseYear, Director, Rating, WatchedAt, Comment, ExternalMetadataId,
+}
+
+#[derive(Serialize, Deserialize)]
+enum TransformJson {
+    RatingScale(f64), DateFormat(String), Identity,
+}
+
+#[derive(Serialize, Deserialize)]
+struct FieldMappingJson {
+    source_column: String,
+    domain_field: DomainFieldJson,
+    transform: TransformJson,
+}
+
+fn mapping_to_json(m: &FieldMapping) -> FieldMappingJson {
+    FieldMappingJson {
+        source_column: m.source_column.clone(),
+        domain_field: match &m.domain_field {
+            DomainField::Title => DomainFieldJson::Title,
+            DomainField::ReleaseYear => DomainFieldJson::ReleaseYear,
+            DomainField::Director => DomainFieldJson::Director,
+            DomainField::Rating => DomainFieldJson::Rating,
+            DomainField::WatchedAt => DomainFieldJson::WatchedAt,
+            DomainField::Comment => DomainFieldJson::Comment,
+            DomainField::ExternalMetadataId => DomainFieldJson::ExternalMetadataId,
+        },
+        transform: match &m.transform {
+            Transform::RatingScale(f) => TransformJson::RatingScale(*f),
+            Transform::DateFormat(s) => TransformJson::DateFormat(s.clone()),
+            Transform::Identity => TransformJson::Identity,
+        },
+    }
+}
+
+fn mapping_from_json(j: FieldMappingJson) -> FieldMapping {
+    FieldMapping {
+        source_column: j.source_column,
+        domain_field: match j.domain_field {
+            DomainFieldJson::Title => DomainField::Title,
+            DomainFieldJson::ReleaseYear => DomainField::ReleaseYear,
+            DomainFieldJson::Director => DomainField::Director,
+            DomainFieldJson::Rating => DomainField::Rating,
+            DomainFieldJson::WatchedAt => DomainField::WatchedAt,
+            DomainFieldJson::Comment => DomainField::Comment,
+            DomainFieldJson::ExternalMetadataId => DomainField::ExternalMetadataId,
+        },
+        transform: match j.transform {
+            TransformJson::RatingScale(f) => Transform::RatingScale(f),
+            TransformJson::DateFormat(s) => Transform::DateFormat(s),
+            TransformJson::Identity => Transform::Identity,
+        },
+    }
+}
+
+fn serialize_mappings(ms: &[FieldMapping]) -> Result<String, DomainError> {
+    serde_json::to_string(&ms.iter().map(mapping_to_json).collect::<Vec<_>>())
+        .map_err(|e| DomainError::InfrastructureError(e.to_string()))
+}
+
+fn deserialize_mappings(s: &str) -> Result<Vec<FieldMapping>, DomainError> {
+    let js: Vec<FieldMappingJson> = serde_json::from_str(s)
+        .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+    Ok(js.into_iter().map(mapping_from_json).collect())
+}
+
 pub struct PostgresImportProfileRepository {
     pool: PgPool,
 }
@@ -26,15 +98,13 @@ impl ImportProfileRepository for PostgresImportProfileRepository {
     async fn save(&self, p: &ImportProfile) -> Result<(), DomainError> {
         let id = p.id.value().to_string();
         let user_id = p.user_id.value().to_string();
+        let field_mappings = serialize_mappings(&p.field_mappings)?;
         sqlx::query(
             "INSERT INTO import_profiles (id, user_id, name, field_mappings, created_at)
-             VALUES ($1, $2, $3, $4, $5) ON CONFLICT (id) DO UPDATE SET name = EXCLUDED.name, field_mappings = EXCLUDED.field_mappings",
+             VALUES ($1, $2, $3, $4, $5)
+             ON CONFLICT (id) DO UPDATE SET name = EXCLUDED.name, field_mappings = EXCLUDED.field_mappings",
         )
-        .bind(&id)
-        .bind(&user_id)
-        .bind(&p.name)
-        .bind(&p.field_mappings)
-        .bind(p.created_at)
+        .bind(&id).bind(&user_id).bind(&p.name).bind(&field_mappings).bind(p.created_at)
         .execute(&self.pool)
         .await
         .map(|_| ())
@@ -45,13 +115,7 @@ impl ImportProfileRepository for PostgresImportProfileRepository {
         let uid = user_id.value().to_string();
 
         #[derive(sqlx::FromRow)]
-        struct Row {
-            id: String,
-            user_id: String,
-            name: String,
-            field_mappings: String,
-            created_at: NaiveDateTime,
-        }
+        struct Row { id: String, user_id: String, name: String, field_mappings: String, created_at: NaiveDateTime }
 
         let rows = sqlx::query_as::<_, Row>(
             "SELECT id, user_id, name, field_mappings, created_at FROM import_profiles WHERE user_id = $1 ORDER BY created_at DESC",
@@ -61,19 +125,17 @@ impl ImportProfileRepository for PostgresImportProfileRepository {
         .await
         .map_err(Self::map_err)?;
 
-        rows.into_iter().map(|r| -> Result<ImportProfile, DomainError> {
-            Ok(ImportProfile {
-                id: ImportProfileId::from_uuid(
-                    r.id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                user_id: UserId::from_uuid(
-                    r.user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                name: r.name,
-                field_mappings: r.field_mappings,
-                created_at: r.created_at,
-            })
-        }).collect()
+        rows.into_iter().map(|r| Ok(ImportProfile {
+            id: ImportProfileId::from_uuid(
+                r.id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            user_id: UserId::from_uuid(
+                r.user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            name: r.name,
+            field_mappings: deserialize_mappings(&r.field_mappings)?,
+            created_at: r.created_at,
+        })).collect()
     }
 
     async fn get(&self, id: &ImportProfileId, user_id: &UserId) -> Result<Option<ImportProfile>, DomainError> {
@@ -81,36 +143,27 @@ impl ImportProfileRepository for PostgresImportProfileRepository {
         let uid_str = user_id.value().to_string();
 
         #[derive(sqlx::FromRow)]
-        struct Row {
-            id: String,
-            user_id: String,
-            name: String,
-            field_mappings: String,
-            created_at: NaiveDateTime,
-        }
+        struct Row { id: String, user_id: String, name: String, field_mappings: String, created_at: NaiveDateTime }
 
         let row = sqlx::query_as::<_, Row>(
             "SELECT id, user_id, name, field_mappings, created_at FROM import_profiles WHERE id = $1 AND user_id = $2",
         )
-        .bind(&id_str)
-        .bind(&uid_str)
+        .bind(&id_str).bind(&uid_str)
         .fetch_optional(&self.pool)
         .await
         .map_err(Self::map_err)?;
 
-        Ok(row.map(|r| -> Result<ImportProfile, DomainError> {
-            Ok(ImportProfile {
-                id: ImportProfileId::from_uuid(
-                    r.id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                user_id: UserId::from_uuid(
-                    r.user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                name: r.name,
-                field_mappings: r.field_mappings,
-                created_at: r.created_at,
-            })
-        }).transpose()?)
+        row.map(|r| Ok(ImportProfile {
+            id: ImportProfileId::from_uuid(
+                r.id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            user_id: UserId::from_uuid(
+                r.user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            name: r.name,
+            field_mappings: deserialize_mappings(&r.field_mappings)?,
+            created_at: r.created_at,
+        })).transpose()
     }
 
     async fn delete(&self, id: &ImportProfileId) -> Result<(), DomainError> {

crates/adapters/postgres/src/import_session.rs

@@ -2,12 +2,181 @@ use async_trait::async_trait;
 use chrono::NaiveDateTime;
 use domain::{
     errors::DomainError,
-    models::ImportSession,
+    models::{
+        AnnotatedRow, FieldMapping, ImportSession, ParsedFile,
+        import::{DomainField, ImportRow, RowResult, Transform},
+    },
     ports::ImportSessionRepository,
     value_objects::{ImportSessionId, UserId},
 };
+use serde::{Deserialize, Serialize};
 use sqlx::PgPool;
 
+// ── serde mirror structs ──
+
+#[derive(Serialize, Deserialize, Default)]
+struct ParsedFileJson {
+    columns: Vec<String>,
+    rows: Vec<Vec<String>>,
+}
+
+#[derive(Serialize, Deserialize)]
+enum DomainFieldJson {
+    Title, ReleaseYear, Director, Rating, WatchedAt, Comment, ExternalMetadataId,
+}
+
+#[derive(Serialize, Deserialize)]
+enum TransformJson {
+    RatingScale(f64),
+    DateFormat(String),
+    Identity,
+}
+
+#[derive(Serialize, Deserialize)]
+struct FieldMappingJson {
+    source_column: String,
+    domain_field: DomainFieldJson,
+    transform: TransformJson,
+}
+
+#[derive(Serialize, Deserialize, Default)]
+struct ImportRowJson {
+    #[serde(skip_serializing_if = "Option::is_none")] title: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] release_year: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] director: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] rating: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] watched_at: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] comment: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")] external_metadata_id: Option<String>,
+}
+
+#[derive(Serialize, Deserialize)]
+enum RowResultJson {
+    Valid(ImportRowJson),
+    Invalid { errors: Vec<String>, raw: Vec<(String, String)> },
+}
+
+#[derive(Serialize, Deserialize)]
+struct AnnotatedRowJson {
+    result: RowResultJson,
+    is_duplicate: bool,
+}
+
+// ── conversion helpers ──
+
+fn domain_field_to_json(f: &DomainField) -> DomainFieldJson {
+    match f {
+        DomainField::Title => DomainFieldJson::Title,
+        DomainField::ReleaseYear => DomainFieldJson::ReleaseYear,
+        DomainField::Director => DomainFieldJson::Director,
+        DomainField::Rating => DomainFieldJson::Rating,
+        DomainField::WatchedAt => DomainFieldJson::WatchedAt,
+        DomainField::Comment => DomainFieldJson::Comment,
+        DomainField::ExternalMetadataId => DomainFieldJson::ExternalMetadataId,
+    }
+}
+
+fn domain_field_from_json(j: DomainFieldJson) -> DomainField {
+    match j {
+        DomainFieldJson::Title => DomainField::Title,
+        DomainFieldJson::ReleaseYear => DomainField::ReleaseYear,
+        DomainFieldJson::Director => DomainField::Director,
+        DomainFieldJson::Rating => DomainField::Rating,
+        DomainFieldJson::WatchedAt => DomainField::WatchedAt,
+        DomainFieldJson::Comment => DomainField::Comment,
+        DomainFieldJson::ExternalMetadataId => DomainField::ExternalMetadataId,
+    }
+}
+
+fn transform_to_json(t: &Transform) -> TransformJson {
+    match t {
+        Transform::RatingScale(f) => TransformJson::RatingScale(*f),
+        Transform::DateFormat(s) => TransformJson::DateFormat(s.clone()),
+        Transform::Identity => TransformJson::Identity,
+    }
+}
+
+fn transform_from_json(j: TransformJson) -> Transform {
+    match j {
+        TransformJson::RatingScale(f) => Transform::RatingScale(f),
+        TransformJson::DateFormat(s) => Transform::DateFormat(s),
+        TransformJson::Identity => Transform::Identity,
+    }
+}
+
+fn mapping_to_json(m: &FieldMapping) -> FieldMappingJson {
+    FieldMappingJson {
+        source_column: m.source_column.clone(),
+        domain_field: domain_field_to_json(&m.domain_field),
+        transform: transform_to_json(&m.transform),
+    }
+}
+
+fn mapping_from_json(j: FieldMappingJson) -> FieldMapping {
+    FieldMapping {
+        source_column: j.source_column,
+        domain_field: domain_field_from_json(j.domain_field),
+        transform: transform_from_json(j.transform),
+    }
+}
+
+fn import_row_to_json(r: &ImportRow) -> ImportRowJson {
+    ImportRowJson {
+        title: r.title.clone(),
+        release_year: r.release_year.clone(),
+        director: r.director.clone(),
+        rating: r.rating.clone(),
+        watched_at: r.watched_at.clone(),
+        comment: r.comment.clone(),
+        external_metadata_id: r.external_metadata_id.clone(),
+    }
+}
+
+fn import_row_from_json(j: ImportRowJson) -> ImportRow {
+    ImportRow {
+        title: j.title,
+        release_year: j.release_year,
+        director: j.director,
+        rating: j.rating,
+        watched_at: j.watched_at,
+        comment: j.comment,
+        external_metadata_id: j.external_metadata_id,
+    }
+}
+
+fn annotated_to_json(a: &AnnotatedRow) -> AnnotatedRowJson {
+    AnnotatedRowJson {
+        result: match &a.result {
+            RowResult::Valid(row) => RowResultJson::Valid(import_row_to_json(row)),
+            RowResult::Invalid { errors, raw } => RowResultJson::Invalid {
+                errors: errors.clone(),
+                raw: raw.clone(),
+            },
+        },
+        is_duplicate: a.is_duplicate,
+    }
+}
+
+fn annotated_from_json(j: AnnotatedRowJson) -> AnnotatedRow {
+    AnnotatedRow {
+        result: match j.result {
+            RowResultJson::Valid(row) => RowResult::Valid(import_row_from_json(row)),
+            RowResultJson::Invalid { errors, raw } => RowResult::Invalid { errors, raw },
+        },
+        is_duplicate: j.is_duplicate,
+    }
+}
+
+fn ser<T: Serialize>(v: &T) -> Result<String, DomainError> {
+    serde_json::to_string(v).map_err(|e| DomainError::InfrastructureError(e.to_string()))
+}
+
+fn de<T: for<'de> Deserialize<'de>>(s: &str) -> Result<T, DomainError> {
+    serde_json::from_str(s).map_err(|e| DomainError::InfrastructureError(e.to_string()))
+}
+
+// ── repository ──
+
 pub struct PostgresImportSessionRepository {
     pool: PgPool,
 }
@@ -19,6 +188,62 @@ impl PostgresImportSessionRepository {
         tracing::error!("DB error: {:?}", e);
         DomainError::InfrastructureError("Database operation failed".into())
     }
+
+    fn serialize_session(s: &ImportSession) -> Result<(String, Option<String>, Option<String>), DomainError> {
+        let parsed = s.parsed_file.as_ref()
+            .map(|f| ser(&ParsedFileJson { columns: f.columns.clone(), rows: f.rows.clone() }))
+            .transpose()?
+            .unwrap_or_default();
+        let mappings = s.field_mappings.as_ref()
+            .map(|ms| ser(&ms.iter().map(mapping_to_json).collect::<Vec<_>>()))
+            .transpose()?;
+        let results = s.row_results.as_ref()
+            .map(|rs| ser(&rs.iter().map(annotated_to_json).collect::<Vec<_>>()))
+            .transpose()?;
+        Ok((parsed, mappings, results))
+    }
+
+    fn deserialize_session(
+        id: String,
+        user_id: String,
+        parsed_data: String,
+        field_mappings: Option<String>,
+        row_results: Option<String>,
+        created_at: NaiveDateTime,
+        expires_at: NaiveDateTime,
+    ) -> Result<ImportSession, DomainError> {
+        let parsed_file = if parsed_data.is_empty() {
+            None
+        } else {
+            let j: ParsedFileJson = de(&parsed_data)?;
+            Some(ParsedFile { columns: j.columns, rows: j.rows })
+        };
+        let field_mappings = field_mappings.as_deref()
+            .map(|s| -> Result<Vec<FieldMapping>, DomainError> {
+                let js: Vec<FieldMappingJson> = de(s)?;
+                Ok(js.into_iter().map(mapping_from_json).collect())
+            })
+            .transpose()?;
+        let row_results = row_results.as_deref()
+            .map(|s| -> Result<Vec<AnnotatedRow>, DomainError> {
+                let js: Vec<AnnotatedRowJson> = de(s)?;
+                Ok(js.into_iter().map(annotated_from_json).collect())
+            })
+            .transpose()?;
+        Ok(ImportSession {
+            id: ImportSessionId::from_uuid(
+                id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            user_id: UserId::from_uuid(
+                user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
+            ),
+            parsed_file,
+            field_mappings,
+            row_results,
+            created_at,
+            expires_at,
+        })
+    }
 }
 
 #[async_trait]
@@ -26,17 +251,14 @@ impl ImportSessionRepository for PostgresImportSessionRepository {
     async fn create(&self, s: &ImportSession) -> Result<(), DomainError> {
         let id = s.id.value().to_string();
         let user_id = s.user_id.value().to_string();
+        let (parsed_data, field_mappings, row_results) = Self::serialize_session(s)?;
         sqlx::query(
             "INSERT INTO import_sessions (id, user_id, parsed_data, field_mappings, row_results, created_at, expires_at)
              VALUES ($1, $2, $3, $4, $5, $6, $7)",
         )
-        .bind(&id)
-        .bind(&user_id)
-        .bind(&s.parsed_data)
-        .bind(&s.field_mappings)
-        .bind(&s.row_results)
-        .bind(s.created_at)
-        .bind(s.expires_at)
+        .bind(&id).bind(&user_id).bind(&parsed_data)
+        .bind(&field_mappings).bind(&row_results)
+        .bind(s.created_at).bind(s.expires_at)
         .execute(&self.pool)
         .await
         .map(|_| ())
@@ -62,41 +284,26 @@ impl ImportSessionRepository for PostgresImportSessionRepository {
             "SELECT id, user_id, parsed_data, field_mappings, row_results, created_at, expires_at
              FROM import_sessions WHERE id = $1 AND user_id = $2",
         )
-        .bind(&id_str)
-        .bind(&uid_str)
+        .bind(&id_str).bind(&uid_str)
         .fetch_optional(&self.pool)
         .await
         .map_err(Self::map_err)?;
 
-        Ok(row.map(|r| -> Result<ImportSession, DomainError> {
-            Ok(ImportSession {
-                id: ImportSessionId::from_uuid(
-                    r.id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                user_id: UserId::from_uuid(
-                    r.user_id.parse::<uuid::Uuid>().map_err(|e| DomainError::InfrastructureError(e.to_string()))?
-                ),
-                parsed_data: r.parsed_data,
-                field_mappings: r.field_mappings,
-                row_results: r.row_results,
-                created_at: r.created_at,
-                expires_at: r.expires_at,
-            })
-        }).transpose()?)
+        row.map(|r| Self::deserialize_session(
+            r.id, r.user_id, r.parsed_data, r.field_mappings, r.row_results,
+            r.created_at, r.expires_at,
+        )).transpose()
     }
 
     async fn update(&self, s: &ImportSession) -> Result<(), DomainError> {
         let id = s.id.value().to_string();
-        sqlx::query(
-            "UPDATE import_sessions SET field_mappings = $1, row_results = $2 WHERE id = $3",
-        )
-        .bind(&s.field_mappings)
-        .bind(&s.row_results)
-        .bind(&id)
-        .execute(&self.pool)
-        .await
-        .map(|_| ())
-        .map_err(Self::map_err)
+        let (_, field_mappings, row_results) = Self::serialize_session(s)?;
+        sqlx::query("UPDATE import_sessions SET field_mappings = $1, row_results = $2 WHERE id = $3")
+            .bind(&field_mappings).bind(&row_results).bind(&id)
+            .execute(&self.pool)
+            .await
+            .map(|_| ())
+            .map_err(Self::map_err)
     }
 
     async fn delete(&self, id: &ImportSessionId) -> Result<(), DomainError> {

crates/adapters/postgres/src/lib.rs

@@ -3,7 +3,7 @@ use domain::{
     errors::DomainError,
     events::DomainEvent,
     models::{
-        DiaryEntry, DiaryFilter, DirectorStat, FeedEntry, MonthlyRating, Movie, Review,
+        DiaryEntry, DiaryFilter, DirectorStat, FeedEntry, MonthlyRating, Movie, MovieStats, Review,
         ReviewHistory, ReviewSource, SortDirection, UserStats, UserTrends,
         collections::{PageParams, Paginated},
     },
@@ -18,8 +18,8 @@ mod models;
 mod users;
 
 use models::{
-    DiaryRow, DirectorCountRow, FeedRow, MonthlyRatingRow, MovieRow, ReviewRow, UserTotalsRow,
-    datetime_to_str,
+    DiaryRow, DirectorCountRow, FeedRow, MonthlyRatingRow, MovieRow, MovieStatsRow, ReviewRow,
+    UserTotalsRow, datetime_to_str,
 };
 
 pub use import_profile::PostgresImportProfileRepository;
@@ -692,6 +692,80 @@ impl DiaryRepository for PostgresRepository {
 
         rows.into_iter().map(DiaryRow::to_domain).collect()
     }
+
+    async fn get_movie_stats(&self, movie_id: &MovieId) -> Result<MovieStats, DomainError> {
+        let id_str = movie_id.value().to_string();
+        sqlx::query_as::<_, MovieStatsRow>(
+            "SELECT
+                COUNT(*) AS total_count,
+                AVG(CAST(rating AS FLOAT)) AS avg_rating,
+                COUNT(CASE WHEN remote_actor_url IS NOT NULL THEN 1 END) AS federated_count,
+                COUNT(CASE WHEN rating = 1 THEN 1 END) AS rating_1,
+                COUNT(CASE WHEN rating = 2 THEN 1 END) AS rating_2,
+                COUNT(CASE WHEN rating = 3 THEN 1 END) AS rating_3,
+                COUNT(CASE WHEN rating = 4 THEN 1 END) AS rating_4,
+                COUNT(CASE WHEN rating = 5 THEN 1 END) AS rating_5
+             FROM reviews WHERE movie_id = $1",
+        )
+        .bind(id_str)
+        .fetch_one(&self.pool)
+        .await
+        .map_err(Self::map_err)
+        .map(MovieStatsRow::to_domain)
+    }
+
+    async fn get_movie_social_feed(
+        &self,
+        movie_id: &MovieId,
+        page: &PageParams,
+    ) -> Result<Paginated<FeedEntry>, DomainError> {
+        let id_str = movie_id.value().to_string();
+        let limit = page.limit as i64;
+        let offset = page.offset as i64;
+
+        let total: i64 = sqlx::query_scalar(
+            "SELECT COUNT(*) FROM reviews WHERE movie_id = $1",
+        )
+        .bind(&id_str)
+        .fetch_one(&self.pool)
+        .await
+        .map_err(Self::map_err)?;
+
+        let rows = sqlx::query_as::<_, FeedRow>(
+            "SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,
+                    r.id AS review_id, r.movie_id, r.user_id, r.rating, r.comment,
+                    to_char(r.watched_at AT TIME ZONE 'UTC', 'YYYY-MM-DD HH24:MI:SS') AS watched_at,
+                    to_char(r.created_at AT TIME ZONE 'UTC', 'YYYY-MM-DD HH24:MI:SS') AS created_at,
+                    r.remote_actor_url,
+                    CASE WHEN r.remote_actor_url IS NOT NULL THEN r.remote_actor_url
+                         WHEN u.email IS NOT NULL THEN u.email
+                         ELSE r.user_id END AS user_email
+             FROM reviews r
+             INNER JOIN movies m ON m.id = r.movie_id
+             LEFT JOIN users u ON u.id = r.user_id
+             WHERE r.movie_id = $1
+             ORDER BY r.watched_at DESC
+             LIMIT $2 OFFSET $3",
+        )
+        .bind(&id_str)
+        .bind(limit)
+        .bind(offset)
+        .fetch_all(&self.pool)
+        .await
+        .map_err(Self::map_err)?;
+
+        let items = rows
+            .into_iter()
+            .map(FeedRow::to_domain)
+            .collect::<Result<Vec<_>, _>>()?;
+
+        Ok(Paginated {
+            items,
+            total_count: total as u64,
+            limit: page.limit,
+            offset: page.offset,
+        })
+    }
 }
 
 #[async_trait]

crates/adapters/postgres/src/models.rs

@@ -157,6 +157,35 @@ impl FeedRow {
     }
 }
 
+#[derive(sqlx::FromRow)]
+pub(crate) struct MovieStatsRow {
+    pub total_count: i64,
+    pub avg_rating: Option<f64>,
+    pub federated_count: i64,
+    pub rating_1: i64,
+    pub rating_2: i64,
+    pub rating_3: i64,
+    pub rating_4: i64,
+    pub rating_5: i64,
+}
+
+impl MovieStatsRow {
+    pub fn to_domain(self) -> domain::models::MovieStats {
+        domain::models::MovieStats {
+            total_count: self.total_count as u64,
+            avg_rating: self.avg_rating,
+            federated_count: self.federated_count as u64,
+            rating_histogram: [
+                self.rating_1 as u64,
+                self.rating_2 as u64,
+                self.rating_3 as u64,
+                self.rating_4 as u64,
+                self.rating_5 as u64,
+            ],
+        }
+    }
+}
+
 #[derive(sqlx::FromRow)]
 pub(crate) struct UserSummaryRow {
     pub id: String,