mod harness;

use charybdis::charybdis::core::{ComponentMetadata, ComponentSpec};
use charybdis::charybdis::entities::Entity;
use charybdis::charybdis::entities::entity::{Metadata, Spec};
use harness::TestDb;

fn test_component(name: &str) -> Entity {
    Entity {
        kind: "Component".to_string(),
        metadata: Some(Metadata::ComponentMetadata(ComponentMetadata {
            name: name.to_string(),
            namespace: "default".to_string(),
            description: format!("{} service", name),
            ..Default::default()
        })),
        spec: Some(Spec::ComponentSpec(ComponentSpec {
            r#type: "service".to_string(),
            lifecycle: "production".to_string(),
            owner: "team-platform".to_string(),
            ..Default::default()
        })),
        ..Default::default()
    }
}

#[tokio::test]
async fn create_and_get_entity() {
    let db = TestDb::new().await;

    let created = db.repository.create(&test_component("payment-api")).await.unwrap();
    assert!(!created.id.is_empty());
    assert_eq!(created.kind, "Component");
    assert!(created.created_at.is_some());
    assert!(created.updated_at.is_some());

    let fetched = db.repository.get_by_id(&created.id).await.unwrap().unwrap();
    assert_eq!(fetched.id, created.id);
    assert_eq!(fetched.kind, "Component");
}

#[tokio::test]
async fn get_nonexistent_returns_none() {
    let db = TestDb::new().await;

    let result = db
        .repository
        .get_by_id("00000000-0000-0000-0000-000000000000")
        .await
        .unwrap();
    assert!(result.is_none());
}

#[tokio::test]
async fn update_entity() {
    let db = TestDb::new().await;

    let created = db.repository.create(&test_component("auth-svc")).await.unwrap();

    let mut updated_data = test_component("auth-svc");
    if let Some(Metadata::ComponentMetadata(ref mut m)) = updated_data.metadata {
        m.description = "Updated auth service".to_string();
    }

    let updated = db
        .repository
        .update(&created.id, &updated_data)
        .await
        .unwrap()
        .unwrap();

    assert_eq!(updated.id, created.id);
    assert_eq!(updated.created_at, created.created_at);
    assert_ne!(updated.updated_at, created.updated_at);

    if let Some(Metadata::ComponentMetadata(m)) = &updated.metadata {
        assert_eq!(m.description, "Updated auth service");
    } else {
        panic!("Expected ComponentMetadata");
    }
}

#[tokio::test]
async fn delete_entity() {
    let db = TestDb::new().await;

    let created = db.repository.create(&test_component("to-delete")).await.unwrap();
    let deleted = db.repository.delete(&created.id).await.unwrap();
    assert!(deleted);

    let gone = db.repository.get_by_id(&created.id).await.unwrap();
    assert!(gone.is_none());

    // Double delete returns false
    let deleted_again = db.repository.delete(&created.id).await.unwrap();
    assert!(!deleted_again);
}

#[tokio::test]
async fn list_paginated() {
    let db = TestDb::new().await;

    for i in 0..5 {
        db.repository
            .create(&test_component(&format!("svc-{}", i)))
            .await
            .unwrap();
    }

    // Page 1: get 2 entities
    let page1 = db
        .repository
        .list_paginated(Some("Component"), None, 2, None)
        .await
        .unwrap();
    assert_eq!(page1.entities.len(), 2);
    assert_eq!(page1.total_count, 5);
    assert!(page1.next_page_token.is_some());

    // Page 2: next 2
    let page2 = db
        .repository
        .list_paginated(Some("Component"), None, 2, page1.next_page_token.as_deref())
        .await
        .unwrap();
    assert_eq!(page2.entities.len(), 2);
    assert!(page2.next_page_token.is_some());

    // Page 3: last 1
    let page3 = db
        .repository
        .list_paginated(Some("Component"), None, 2, page2.next_page_token.as_deref())
        .await
        .unwrap();
    assert_eq!(page3.entities.len(), 1);
    assert!(page3.next_page_token.is_none());

    // No duplicates across pages
    let all_ids: Vec<String> = page1
        .entities
        .iter()
        .chain(page2.entities.iter())
        .chain(page3.entities.iter())
        .map(|e| e.id.clone())
        .collect();
    let unique: std::collections::HashSet<&String> = all_ids.iter().collect();
    assert_eq!(all_ids.len(), unique.len());
}

#[tokio::test]
async fn get_by_kind_and_name() {
    let db = TestDb::new().await;

    db.repository.create(&test_component("unique-svc")).await.unwrap();
    db.repository.create(&test_component("other-svc")).await.unwrap();

    let found = db
        .repository
        .get_by_kind_and_name("Component", "unique-svc")
        .await
        .unwrap();
    assert!(found.is_some());
    if let Some(Metadata::ComponentMetadata(m)) = &found.unwrap().metadata {
        assert_eq!(m.name, "unique-svc");
    }

    let not_found = db
        .repository
        .get_by_kind_and_name("Component", "nonexistent")
        .await
        .unwrap();
    assert!(not_found.is_none());
}

#[tokio::test]
async fn atomic_annotation_update() {
    let db = TestDb::new().await;

    let created = db.repository.create(&test_component("annotated-svc")).await.unwrap();

    // First annotation update
    let mut annotations1 = std::collections::HashMap::new();
    annotations1.insert("defectdojo.com/product-id".to_string(), "123".to_string());
    let updated = db
        .repository
        .update_annotations(&created.id, annotations1)
        .await
        .unwrap();
    assert!(updated);

    // Second annotation update (should merge, not overwrite)
    let mut annotations2 = std::collections::HashMap::new();
    annotations2.insert("github.com/repo".to_string(), "org/repo".to_string());
    db.repository
        .update_annotations(&created.id, annotations2)
        .await
        .unwrap();

    // Verify both annotations exist
    let entity = db.repository.get_by_id(&created.id).await.unwrap().unwrap();
    assert_eq!(entity.annotations.get("defectdojo.com/product-id").unwrap(), "123");
    assert_eq!(entity.annotations.get("github.com/repo").unwrap(), "org/repo");
}