use libips::actions::{File as FileAction, Manifest};
use libips::repository::{FileBackend, RepositoryVersion, WritableRepository};
use pkg6depotd::config::{Config, RepositoryConfig, ServerConfig};
use pkg6depotd::http;
use pkg6depotd::repo::DepotRepo;
use std::fs;
use std::path::PathBuf;
use std::sync::Arc;
use tempfile::TempDir;
use tokio::net::TcpListener;

// Helper to setup a repo with a published package
fn setup_repo(dir: &TempDir) -> PathBuf {
    let repo_path = dir.path().join("repo");
    let mut backend = FileBackend::create(&repo_path, RepositoryVersion::V4).unwrap();
    let publisher = "test";
    backend.add_publisher(publisher).unwrap();

    // Create a transaction to publish a package
    let mut tx = backend.begin_transaction().unwrap();
    tx.set_publisher(publisher);

    // Create content
    let content_dir = dir.path().join("content");
    fs::create_dir_all(&content_dir).unwrap();
    let file_path = content_dir.join("hello.txt");
    fs::write(&file_path, "Hello IPS").unwrap();

    // Add file
    let mut fa = FileAction::read_from_path(&file_path).unwrap();
    fa.path = "hello.txt".to_string(); // relative path in package
    tx.add_file(fa, &file_path).unwrap();

    // Update manifest
    let mut manifest = Manifest::new();

    use libips::actions::Attr;
    use std::collections::HashMap;

    manifest.attributes.push(Attr {
        key: "pkg.fmri".to_string(),
        values: vec!["pkg://test/example@1.0.0".to_string()],
        properties: HashMap::new(),
    });
    manifest.attributes.push(Attr {
        key: "pkg.summary".to_string(),
        values: vec!["Test Package".to_string()],
        properties: HashMap::new(),
    });

    tx.update_manifest(manifest);
    tx.commit().unwrap();

    backend.rebuild(Some(publisher), false, false).unwrap();

    repo_path
}

#[tokio::test]
async fn test_depot_server() {
    // Setup
    let temp_dir = TempDir::new().unwrap();
    let repo_path = setup_repo(&temp_dir);

    let config = Config {
        server: ServerConfig {
            bind: vec!["127.0.0.1:0".to_string()],
            workers: None,
            max_connections: None,
            reuseport: None,
            cache_max_age: Some(3600),
            tls_cert: None,
            tls_key: None,
        },
        repository: RepositoryConfig {
            root: repo_path.clone(),
            mode: Some("readonly".to_string()),
        },
        telemetry: None,
        publishers: None,
        admin: None,
        oauth2: None,
    };

    let repo = DepotRepo::new(&config).unwrap();
    let state = Arc::new(repo);
    let router = http::routes::app_router(state);

    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
    let addr = listener.local_addr().unwrap();

    // Spawn server
    tokio::spawn(async move {
        http::server::run(router, listener).await.unwrap();
    });

    let client = reqwest::Client::new();
    let base_url = format!("http://{}", addr);

    // 1. Test Versions
    let resp = client
        .get(format!("{}/versions/0/", base_url))
        .send()
        .await
        .unwrap();
    assert!(resp.status().is_success());
    let text = resp.text().await.unwrap();
    assert!(text.contains("pkg-server pkg6depotd-"));
    assert!(text.contains("catalog 1"));
    assert!(text.contains("manifest 0 1"));

    // 2. Test Catalog

    // Test Catalog v1
    let catalog_v1_url = format!("{}/test/catalog/1/catalog.attrs", base_url);
    let resp = client.get(&catalog_v1_url).send().await.unwrap();
    if !resp.status().is_success() {
        println!("Catalog v1 failed: {:?}", resp);
    }
    assert!(resp.status().is_success());
    let catalog_attrs = resp.text().await.unwrap();
    // Verify it looks like JSON catalog attrs (contains signature)
    assert!(catalog_attrs.contains("package-count"));
    assert!(catalog_attrs.contains("parts"));

    // 3. Test Manifest
    let fmri_arg = "example%401.0.0";
    // v0
    let manifest_url = format!("{}/test/manifest/0/{}", base_url, fmri_arg);
    let resp = client.get(&manifest_url).send().await.unwrap();
    assert!(resp.status().is_success());
    let manifest_text = resp.text().await.unwrap();
    assert!(manifest_text.contains("pkg.fmri"));
    assert!(manifest_text.contains("example@1.0.0"));

    // v1
    let manifest_v1_url = format!("{}/test/manifest/1/{}", base_url, fmri_arg);
    let resp = client.get(&manifest_v1_url).send().await.unwrap();
    assert!(resp.status().is_success());
    let manifest_text_v1 = resp.text().await.unwrap();
    assert_eq!(manifest_text, manifest_text_v1);

    // 4. Test Info
    let info_url = format!("{}/test/info/0/{}", base_url, fmri_arg);
    let resp = client.get(&info_url).send().await.unwrap();
    assert!(resp.status().is_success());
    let info_text = resp.text().await.unwrap();
    assert!(info_text.contains("Name: example"));
    assert!(info_text.contains("Summary: Test Package"));
    // Ensure FMRI format is correct: pkg://<publisher>/<name>@<version>
    assert!(
        info_text.contains("FMRI: pkg://test/example@1.0.0"),
        "Info FMRI was: {}",
        info_text
    );

    // 5. Test Publisher v1
    let pub_url = format!("{}/test/publisher/1", base_url);
    let resp = client.get(&pub_url).send().await.unwrap();
    assert!(resp.status().is_success());

    // Test Publisher v1 with trailing slash
    let pub_url_slash = format!("{}/test/publisher/1/", base_url);
    let resp = client.get(&pub_url_slash).send().await.unwrap();
    assert!(resp.status().is_success());

    assert!(
        resp.headers()
            .get("content-type")
            .unwrap()
            .to_str()
            .unwrap()
            .contains("application/vnd.pkg5.info")
    );
    let pub_json: serde_json::Value = resp.json().await.unwrap();
    assert_eq!(pub_json["version"], 1);
    assert_eq!(pub_json["publishers"][0]["name"], "test");

    // Test Default Publisher Route v1
    let def_pub_url = format!("{}/publisher/1", base_url);
    let resp = client.get(&def_pub_url).send().await.unwrap();
    assert!(resp.status().is_success());

    // Test Default Publisher Route v1 with trailing slash
    let def_pub_url_slash = format!("{}/publisher/1/", base_url);
    let resp = client.get(&def_pub_url_slash).send().await.unwrap();
    assert!(resp.status().is_success());

    let pub_json: serde_json::Value = resp.json().await.unwrap();
    // In current implementation it returns one publisher.
    // We want it to return all publishers.
    assert_eq!(pub_json["publishers"].as_array().unwrap().len(), 1);
    assert_eq!(pub_json["publishers"][0]["name"], "test");

    // Test Default Publisher Route v0
    let def_pub_url_v0 = format!("{}/publisher/0", base_url);
    let resp = client.get(&def_pub_url_v0).send().await.unwrap();
    assert!(resp.status().is_success());

    // Test Default Publisher Route v0 with trailing slash
    let def_pub_url_v0_slash = format!("{}/publisher/0/", base_url);
    let resp = client.get(&def_pub_url_v0_slash).send().await.unwrap();
    assert!(resp.status().is_success());

    let pub_json: serde_json::Value = resp.json().await.unwrap();
    assert_eq!(pub_json["publishers"].as_array().unwrap().len(), 1);
    assert_eq!(pub_json["publishers"][0]["name"], "test");

    // 6. Test File
    // We assume file exists if manifest works.
}

#[tokio::test]
async fn test_ini_only_repo_serving_catalog() {
    use libips::repository::BatchOptions;
    use libips::repository::WritableRepository;
    use std::io::Write as _;

    // Setup temp repo
    let temp_dir = TempDir::new().unwrap();
    let repo_path = temp_dir.path().join("repo_ini");

    // Create repo using FileBackend to get layout, publish one pkg
    let mut backend = FileBackend::create(&repo_path, RepositoryVersion::V4).unwrap();
    let publisher = "ini-test";
    backend.add_publisher(publisher).unwrap();

    // Create content
    let content_dir = temp_dir.path().join("content_ini");
    fs::create_dir_all(&content_dir).unwrap();
    let file_path = content_dir.join("hello.txt");
    fs::write(&file_path, "Hello INI Repo").unwrap();

    // Publish one manifest
    let mut tx = backend.begin_transaction().unwrap();
    tx.set_publisher(publisher);
    let mut fa = FileAction::read_from_path(&file_path).unwrap();
    fa.path = "hello.txt".to_string();
    tx.add_file(fa, &file_path).unwrap();

    let mut manifest = Manifest::new();
    use libips::actions::Attr;
    use std::collections::HashMap;
    manifest.attributes.push(Attr {
        key: "pkg.fmri".to_string(),
        values: vec![format!("pkg://{}/example@1.0.0", publisher)],
        properties: HashMap::new(),
    });
    manifest.attributes.push(Attr {
        key: "pkg.summary".to_string(),
        values: vec!["INI Repo Test Package".to_string()],
        properties: HashMap::new(),
    });
    tx.update_manifest(manifest);
    tx.commit().unwrap();

    // Rebuild catalog using batched API explicitly with small batch to exercise code path
    let opts = BatchOptions {
        batch_size: 1,
        flush_every_n: 1,
    };
    backend
        .rebuild_catalog_batched(publisher, true, opts)
        .unwrap();

    // Replace pkg6.repository with legacy pkg5.repository so FileBackend::open uses INI
    let pkg6_cfg = repo_path.join("pkg6.repository");
    if pkg6_cfg.exists() {
        fs::remove_file(&pkg6_cfg).unwrap();
    }
    let mut ini = String::new();
    ini.push_str("[publisher]\n");
    ini.push_str(&format!("prefix = {}\n", publisher));
    ini.push_str("[repository]\nversion = 4\n");
    let mut f = std::fs::File::create(repo_path.join("pkg5.repository")).unwrap();
    f.write_all(ini.as_bytes()).unwrap();

    // Start depot server
    let config = Config {
        server: ServerConfig {
            bind: vec!["127.0.0.1:0".to_string()],
            workers: None,
            max_connections: None,
            reuseport: None,
            cache_max_age: Some(3600),
            tls_cert: None,
            tls_key: None,
        },
        repository: RepositoryConfig {
            root: repo_path.clone(),
            mode: Some("readonly".to_string()),
        },
        telemetry: None,
        publishers: None,
        admin: None,
        oauth2: None,
    };
    let repo = DepotRepo::new(&config).unwrap();
    let state = Arc::new(repo);
    let router = http::routes::app_router(state);

    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
    let addr = listener.local_addr().unwrap();
    tokio::spawn(async move {
        http::server::run(router, listener).await.unwrap();
    });

    let client = reqwest::Client::new();
    let base_url = format!("http://{}", addr);

    // Fetch catalog attrs via v1 endpoint
    let url = format!("{}/{}/catalog/1/catalog.attrs", base_url, publisher);
    let resp = client.get(&url).send().await.unwrap();
    assert!(resp.status().is_success(), "status: {:?}", resp.status());
    let body = resp.text().await.unwrap();
    assert!(body.contains("package-count"));
    assert!(body.contains("parts"));

    // Also fetch individual catalog parts
    for part in [
        "catalog.base.C",
        "catalog.dependency.C",
        "catalog.summary.C",
    ]
    .iter()
    {
        let url = format!("{}/{}/catalog/1/{}", base_url, publisher, part);
        let resp = client.get(&url).send().await.unwrap();
        assert!(
            resp.status().is_success(),
            "{} status: {:?}",
            part,
            resp.status()
        );
        let ct = resp
            .headers()
            .get("content-type")
            .unwrap()
            .to_str()
            .unwrap()
            .to_string();
        assert!(
            ct.contains("application/json"),
            "content-type for {} was {}",
            part,
            ct
        );
        let txt = resp.text().await.unwrap();
        assert!(!txt.is_empty(), "{} should not be empty", part);
        if *part == "catalog.base.C" {
            assert!(
                txt.contains(&publisher) && txt.contains("version"),
                "base part should contain publisher and version"
            );
        } else {
            // dependency/summary may be empty for this test package; at least ensure signature is present
            assert!(
                txt.contains("_SIGNATURE"),
                "{} should contain a signature field",
                part
            );
        }
    }
}

#[tokio::test]
async fn test_file_url_without_algo() {
    // Setup
    let temp_dir = TempDir::new().unwrap();
    let repo_path = setup_repo(&temp_dir);

    let config = Config {
        server: ServerConfig {
            bind: vec!["127.0.0.1:0".to_string()],
            workers: None,
            max_connections: None,
            reuseport: None,
            cache_max_age: Some(3600),
            tls_cert: None,
            tls_key: None,
        },
        repository: RepositoryConfig {
            root: repo_path.clone(),
            mode: Some("readonly".to_string()),
        },
        telemetry: None,
        publishers: None,
        admin: None,
        oauth2: None,
    };

    let repo = DepotRepo::new(&config).unwrap();
    let state = Arc::new(repo);
    let router = http::routes::app_router(state);

    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
    let addr = listener.local_addr().unwrap();

    // Spawn server
    tokio::spawn(async move {
        http::server::run(router, listener).await.unwrap();
    });

    let client = reqwest::Client::new();
    let base_url = format!("http://{}", addr);

    // Hash found in repo (SHA256 of compressed content likely)
    let hash = "40dafd2319edb9b7c930958f7b8d2d59198f88c906d50811b21436008ef0746f";

    // Test URL without algo
    // Expected format: /{publisher}/file/1/{hash}
    let url = format!("{}/test/file/1/{}", base_url, hash);
    println!("Requesting: {}", url);

    let resp = client.get(&url).send().await.unwrap();

    assert_eq!(
        resp.status(),
        200,
        "Should handle file URL without algorithm"
    );
    let _content = resp.text().await.unwrap();
}

#[tokio::test]
async fn test_multiple_publishers_default_route() {
    let temp_dir = TempDir::new().unwrap();
    let repo_path = temp_dir.path().join("repo_multi");
    let mut backend = FileBackend::create(&repo_path, RepositoryVersion::V4).unwrap();

    backend.add_publisher("pub1").unwrap();
    backend.add_publisher("pub2").unwrap();

    let config = Config {
        server: ServerConfig {
            bind: vec!["127.0.0.1:0".to_string()],
            workers: None,
            max_connections: None,
            reuseport: None,
            cache_max_age: Some(3600),
            tls_cert: None,
            tls_key: None,
        },
        repository: RepositoryConfig {
            root: repo_path.clone(),
            mode: Some("readonly".to_string()),
        },
        telemetry: None,
        publishers: None,
        admin: None,
        oauth2: None,
    };

    let repo = DepotRepo::new(&config).unwrap();
    let state = Arc::new(repo);
    let router = http::routes::app_router(state);

    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
    let addr = listener.local_addr().unwrap();

    tokio::spawn(async move {
        http::server::run(router, listener).await.unwrap();
    });

    let client = reqwest::Client::new();
    let base_url = format!("http://{}", addr);

    let def_pub_url = format!("{}/publisher/0", base_url);
    let resp = client.get(&def_pub_url).send().await.unwrap();
    assert!(resp.status().is_success());

    let pub_json: serde_json::Value = resp.json().await.unwrap();
    let pubs = pub_json["publishers"].as_array().unwrap();

    // CURRENT BEHAVIOR: returns 1
    // DESIRED BEHAVIOR: returns 2
    assert_eq!(pubs.len(), 2, "Should return all publishers");

    let names: Vec<String> = pubs
        .iter()
        .map(|p| p["name"].as_str().unwrap().to_string())
        .collect();
    assert!(names.contains(&"pub1".to_string()));
    assert!(names.contains(&"pub2".to_string()));
}

#[tokio::test]
async fn test_search_endpoint() {
    // Setup repo with a published package (rebuild builds fts.db)
    let temp_dir = TempDir::new().unwrap();
    let repo_path = setup_repo(&temp_dir);

    let config = Config {
        server: ServerConfig {
            bind: vec!["127.0.0.1:0".to_string()],
            workers: None,
            max_connections: None,
            reuseport: None,
            cache_max_age: Some(3600),
            tls_cert: None,
            tls_key: None,
        },
        repository: RepositoryConfig {
            root: repo_path.clone(),
            mode: Some("readonly".to_string()),
        },
        telemetry: None,
        publishers: None,
        admin: None,
        oauth2: None,
    };

    let repo = DepotRepo::new(&config).unwrap();
    let state = Arc::new(repo);
    let router = http::routes::app_router(state);

    let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
    let addr = listener.local_addr().unwrap();

    tokio::spawn(async move {
        http::server::run(router, listener).await.unwrap();
    });

    let client = reqwest::Client::new();
    let base_url = format!("http://{}", addr);

    // 1. Test versions endpoint now advertises search
    let resp = client
        .get(format!("{}/versions/0/", base_url))
        .send()
        .await
        .unwrap();
    let text = resp.text().await.unwrap();
    assert!(text.contains("search 0 1"), "versions should advertise search");

    // 2. Test search v0 - search for "example" (the package stem)
    let resp = client
        .get(format!("{}/test/search/0/example", base_url))
        .send()
        .await
        .unwrap();
    assert!(resp.status().is_success(), "search v0 should succeed");
    let body = resp.text().await.unwrap();
    assert!(body.contains("example"), "search v0 should find 'example' package");

    // 3. Test search v1 - search for "example"
    let resp = client
        .get(format!(
            "{}/test/search/1/False_2_None_None_example",
            base_url
        ))
        .send()
        .await
        .unwrap();
    assert!(resp.status().is_success(), "search v1 should succeed");
    let body = resp.text().await.unwrap();
    assert!(
        body.contains("Return from search v1"),
        "search v1 should have header"
    );
    assert!(body.contains("example"), "search v1 should find 'example' package");

    // 4. Test search v0 - no results returns 204
    let resp = client
        .get(format!("{}/test/search/0/nonexistentpackage", base_url))
        .send()
        .await
        .unwrap();
    assert_eq!(
        resp.status().as_u16(),
        204,
        "search v0 with no results should return 204"
    );

    // 5. Test search v1 - no results returns 204
    let resp = client
        .get(format!(
            "{}/test/search/1/False_2_None_None_nonexistentpackage",
            base_url
        ))
        .send()
        .await
        .unwrap();
    assert_eq!(
        resp.status().as_u16(),
        204,
        "search v1 with no results should return 204"
    );

    // 6. Test search by summary keyword "Test Package"
    let resp = client
        .get(format!("{}/test/search/0/Test", base_url))
        .send()
        .await
        .unwrap();
    assert!(resp.status().is_success());
    let body = resp.text().await.unwrap();
    assert!(
        body.contains("example"),
        "search by summary keyword should find the package"
    );

    // 7. Test publisher-less search v0 (falls back to default publisher)
    let resp = client
        .get(format!("{}/search/0/example", base_url))
        .send()
        .await
        .unwrap();
    assert!(
        resp.status().is_success(),
        "publisher-less search v0 should succeed"
    );
    let body = resp.text().await.unwrap();
    assert!(
        body.contains("example"),
        "publisher-less search v0 should find 'example' package"
    );

    // 8. Test publisher-less search v1
    let resp = client
        .get(format!(
            "{}/search/1/False_2_None_None_example",
            base_url
        ))
        .send()
        .await
        .unwrap();
    assert!(
        resp.status().is_success(),
        "publisher-less search v1 should succeed"
    );
    let body = resp.text().await.unwrap();
    assert!(
        body.contains("example"),
        "publisher-less search v1 should find 'example' package"
    );

    // 9. Test POST search v1
    let resp = client
        .post(format!("{}/test/search/1/", base_url))
        .body("False_2_None_None_example")
        .send()
        .await
        .unwrap();
    assert!(
        resp.status().is_success(),
        "POST search v1 should succeed"
    );
    let body = resp.text().await.unwrap();
    assert!(
        body.contains("example"),
        "POST search v1 should find 'example' package"
    );

    // 10. Test search v0 response format matches pkg5 spec
    let resp = client
        .get(format!("{}/test/search/0/example", base_url))
        .send()
        .await
        .unwrap();
    let content_type = resp
        .headers()
        .get("content-type")
        .unwrap()
        .to_str()
        .unwrap()
        .to_string();
    assert!(
        content_type.contains("text/plain"),
        "search v0 content-type should be text/plain, got: {}",
        content_type
    );
    let body = resp.text().await.unwrap();
    // Each line should have format: {index_type} {fmri} {action_type} {value}
    for line in body.lines() {
        let parts: Vec<&str> = line.splitn(4, ' ').collect();
        assert_eq!(
            parts.len(),
            4,
            "search v0 line should have 4 space-separated fields, got: '{}'",
            line
        );
    }
}