use domain::entities::{BatchStatus, Job, JobBatch, JobStatus, JobType, ProcessingPipeline};
use domain::errors::DomainError;
use domain::value_objects::{StructuredData, SystemId};

// --- Job ---

#[test]
fn job_lifecycle_success() {
    let mut job = Job::new(JobType::ExtractMetadata, 5, StructuredData::new());
    assert_eq!(job.status, JobStatus::Queued);

    job.start().unwrap();
    assert_eq!(job.status, JobStatus::Processing);
    assert!(job.started_at.is_some());

    job.complete(StructuredData::new());
    assert_eq!(job.status, JobStatus::Completed);
    assert!(job.result_data.is_some());
    assert!(job.completed_at.is_some());
}

#[test]
fn retry_on_failure() {
    let mut job = Job::new(JobType::ScanDirectory, 1, StructuredData::new());
    job.start().unwrap();

    job.fail("timeout");
    assert_eq!(job.status, JobStatus::Queued);
    assert_eq!(job.retry_count, 1);
    assert!(job.can_retry());
    assert!(job.started_at.is_none());
}

#[test]
fn fails_after_max_retries() {
    let mut job = Job::new(JobType::ScanDirectory, 1, StructuredData::new());
    job.max_retries = 2;

    job.start().unwrap();
    job.fail("err1");
    assert_eq!(job.status, JobStatus::Queued);

    job.start().unwrap();
    job.fail("err2");
    assert_eq!(job.status, JobStatus::Failed);
    assert!(!job.can_retry());
}

#[test]
fn cannot_start_from_processing() {
    let mut job = Job::new(JobType::ScanDirectory, 1, StructuredData::new());
    job.start().unwrap();
    let result = job.start();
    assert!(matches!(result, Err(DomainError::Conflict(_))));
}

// --- JobBatch ---

#[test]
fn completes_when_all_done() {
    let mut batch = JobBatch::new("scan", 3);
    batch.record_completion();
    batch.record_completion();
    batch.record_completion();
    assert_eq!(batch.status, BatchStatus::Completed);
}

#[test]
fn completes_with_errors() {
    let mut batch = JobBatch::new("scan", 3);
    batch.record_completion();
    batch.record_failure();
    batch.record_completion();
    assert_eq!(batch.status, BatchStatus::CompletedWithErrors);
}

#[test]
fn progress_tracking() {
    let mut batch = JobBatch::new("scan", 4);
    assert_eq!(batch.progress_percent(), 0.0);

    batch.record_completion();
    assert_eq!(batch.progress_percent(), 25.0);

    batch.record_completion();
    assert_eq!(batch.progress_percent(), 50.0);
}

// --- ProcessingPipeline ---

#[test]
fn steps_ordered() {
    let mut pipeline = ProcessingPipeline::new("asset.created");
    assert!(pipeline.steps.is_empty());

    pipeline.add_step(SystemId::new(), StructuredData::new());
    pipeline.add_step(SystemId::new(), StructuredData::new());
    pipeline.add_step(SystemId::new(), StructuredData::new());

    assert_eq!(pipeline.steps.len(), 3);
    assert_eq!(pipeline.steps[0].step_order, 0);
    assert_eq!(pipeline.steps[1].step_order, 1);
    assert_eq!(pipeline.steps[2].step_order, 2);
}