mod common;

use anyhow::Result;
use axum::http::StatusCode;
use common::{acquire_db_lock, body_to_vec, TestApp};
use serde::Deserialize;
use serde_json::Value;
use uuid::Uuid;

#[derive(Deserialize)]
struct DocumentDetail {
    document: DocumentInfo,
    current_version: DocumentVersion,
}

#[derive(Deserialize)]
struct DocumentInfo {
    id: Uuid,
    original_name: String,
    current_version: i32,
    deleted_at: Option<String>,
    tags: Vec<Value>,
}

#[derive(Deserialize)]
struct DocumentVersion {
    s3_key: String,
    size_bytes: i64,
}

#[derive(Deserialize)]
struct DocumentListItem {
    id: Uuid,
    current_version: i32,
}

#[derive(Deserialize)]
struct DocumentDownload {
    url: String,
    filename: String,
}

#[tokio::test]
async fn upload_and_list_document() -> Result<()> {
    let _lock = acquire_db_lock().await;
    let Some(app) = TestApp::new().await? else {
        eprintln!("skipping test: TEST_DATABASE_URL not set");
        return Ok(());
    };

    let password = "passw0rd";
    app.insert_user("dana", password, "admin").await?;
    let token = app.login_token("dana", password).await?;

    let file_bytes = b"example document body".to_vec();
    let upload = app
        .upload_document(
            "/api/documents",
            "doc.txt",
            "text/plain",
            &file_bytes,
            None,
            &token,
        )
        .await?;
    assert_eq!(upload.status(), StatusCode::OK);
    let body = body_to_vec(upload.into_body()).await?;
    let detail: DocumentDetail = serde_json::from_slice(&body)?;

    assert_eq!(detail.document.original_name, "doc.txt");
    assert_eq!(detail.document.current_version, 1);
    assert_eq!(detail.document.deleted_at, None);
    assert!(detail.document.tags.is_empty());
    assert_eq!(detail.current_version.size_bytes, file_bytes.len() as i64);

    let stored = app
        .storage()
        .get(&detail.current_version.s3_key)
        .await
        .expect("object stored");
    assert_eq!(stored.bytes, file_bytes);

    let response = app.get("/api/documents", Some(&token)).await?;
    assert_eq!(response.status(), StatusCode::OK);
    let body = body_to_vec(response.into_body()).await?;
    let mut list: Vec<DocumentListItem> = serde_json::from_slice(&body)?;
    assert_eq!(list.len(), 1);
    let item = list.pop().unwrap();
    assert_eq!(item.id, detail.document.id);
    assert_eq!(item.current_version, 1);

    let download = app
        .get(
            &format!("/api/documents/{}/download", detail.document.id),
            Some(&token),
        )
        .await?;
    assert_eq!(download.status(), StatusCode::OK);
    let body = body_to_vec(download.into_body()).await?;
    let download_info: DocumentDownload = serde_json::from_slice(&body)?;
    assert!(download_info.url.contains(&detail.current_version.s3_key));
    assert_eq!(download_info.filename, "doc.txt");

    app.cleanup().await?;
    Ok(())
}

#[tokio::test]
async fn duplicate_and_restore_document() -> Result<()> {
    let _lock = acquire_db_lock().await;
    let Some(app) = TestApp::new().await? else {
        eprintln!("skipping test: TEST_DATABASE_URL not set");
        return Ok(());
    };

    let password = "pass1234";
    app.insert_user("sam", password, "admin").await?;
    let token = app.login_token("sam", password).await?;

    let payload = b"same bytes".to_vec();
    let first = app
        .upload_document(
            "/api/documents",
            "dup.bin",
            "application/octet-stream",
            &payload,
            None,
            &token,
        )
        .await?;
    let first_body = body_to_vec(first.into_body()).await?;
    let first_detail: DocumentDetail = serde_json::from_slice(&first_body)?;

    let second = app
        .upload_document(
            "/api/documents",
            "dup.bin",
            "application/octet-stream",
            &payload,
            None,
            &token,
        )
        .await?;
    assert_eq!(second.status(), StatusCode::OK);
    let second_body = body_to_vec(second.into_body()).await?;
    let second_detail: DocumentDetail = serde_json::from_slice(&second_body)?;

    assert_eq!(first_detail.document.id, second_detail.document.id);
    assert_eq!(second_detail.document.deleted_at, None);

    let delete = app
        .delete(
            &format!("/api/documents/{}", first_detail.document.id),
            Some(&token),
        )
        .await?;
    assert_eq!(delete.status(), StatusCode::NO_CONTENT);

    let third = app
        .upload_document(
            "/api/documents",
            "dup.bin",
            "application/octet-stream",
            &payload,
            None,
            &token,
        )
        .await?;
    let third_body = body_to_vec(third.into_body()).await?;
    let third_detail: DocumentDetail = serde_json::from_slice(&third_body)?;

    assert_eq!(third_detail.document.id, first_detail.document.id);
    assert_eq!(third_detail.document.deleted_at, None);

    app.cleanup().await?;
    Ok(())
}