//! Tests for the HTTP agent endpoints.
use super::*;
use crate::agents::AgentStatus;
use std::path;
use tempfile::TempDir;

fn make_work_dirs(tmp: &TempDir) -> path::PathBuf {
    let root = tmp.path().to_path_buf();
    for stage in &["5_done", "6_archived"] {
        std::fs::create_dir_all(root.join(".huskies").join("work").join(stage)).unwrap();
    }
    root
}

#[test]
fn story_is_archived_false_when_file_absent() {
    let tmp = TempDir::new().unwrap();
    let root = make_work_dirs(&tmp);
    assert!(!svc::is_archived(&root, "79_story_foo"));
}

#[test]
fn story_is_archived_true_when_file_in_5_done() {
    let tmp = TempDir::new().unwrap();
    let root = make_work_dirs(&tmp);
    std::fs::write(
        root.join(".huskies/work/5_done/79_story_foo.md"),
        "---\nname: test\n---\n",
    )
    .unwrap();
    assert!(svc::is_archived(&root, "79_story_foo"));
}

#[test]
fn story_is_archived_true_when_file_in_6_archived() {
    let tmp = TempDir::new().unwrap();
    let root = make_work_dirs(&tmp);
    std::fs::write(
        root.join(".huskies/work/6_archived/79_story_foo.md"),
        "---\nname: test\n---\n",
    )
    .unwrap();
    assert!(svc::is_archived(&root, "79_story_foo"));
}

fn make_project_toml(root: &path::Path, content: &str) {
    let sk_dir = root.join(".huskies");
    std::fs::create_dir_all(&sk_dir).unwrap();
    std::fs::write(sk_dir.join("project.toml"), content).unwrap();
}

// --- get_agent_config tests ---

#[tokio::test]
async fn get_agent_config_returns_default_when_no_toml() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.get_agent_config().await.unwrap().0;
    // Default config has one agent named "default"
    assert_eq!(result.len(), 1);
    assert_eq!(result[0].name, "default");
}

#[tokio::test]
async fn get_agent_config_returns_configured_agents() {
    let tmp = TempDir::new().unwrap();
    make_project_toml(
        tmp.path(),
        r#"
[[agent]]
name = "coder-1"
role = "Full-stack engineer"
model = "sonnet"
max_turns = 30
max_budget_usd = 5.0

[[agent]]
name = "qa"
role = "QA reviewer"
model = "haiku"
"#,
    );
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.get_agent_config().await.unwrap().0;
    assert_eq!(result.len(), 2);
    assert_eq!(result[0].name, "coder-1");
    assert_eq!(result[0].role, "Full-stack engineer");
    assert_eq!(result[0].model, Some("sonnet".to_string()));
    assert_eq!(result[0].max_turns, Some(30));
    assert_eq!(result[0].max_budget_usd, Some(5.0));
    assert_eq!(result[1].name, "qa");
    assert_eq!(result[1].model, Some("haiku".to_string()));
}

#[tokio::test]
async fn get_agent_config_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.get_agent_config().await;
    assert!(result.is_err());
}

// --- reload_config tests ---

#[tokio::test]
async fn reload_config_returns_default_when_no_toml() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.reload_config().await.unwrap().0;
    assert_eq!(result.len(), 1);
    assert_eq!(result[0].name, "default");
}

#[tokio::test]
async fn reload_config_returns_configured_agents() {
    let tmp = TempDir::new().unwrap();
    make_project_toml(
        tmp.path(),
        r#"
[[agent]]
name = "supervisor"
role = "Coordinator"
model = "opus"
allowed_tools = ["Read", "Bash"]
"#,
    );
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.reload_config().await.unwrap().0;
    assert_eq!(result.len(), 1);
    assert_eq!(result[0].name, "supervisor");
    assert_eq!(result[0].role, "Coordinator");
    assert_eq!(result[0].model, Some("opus".to_string()));
    assert_eq!(
        result[0].allowed_tools,
        Some(vec!["Read".to_string(), "Bash".to_string()])
    );
}

#[tokio::test]
async fn reload_config_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.reload_config().await;
    assert!(result.is_err());
}

// --- list_worktrees tests ---

#[tokio::test]
async fn list_worktrees_returns_empty_when_no_worktree_dir() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.list_worktrees().await.unwrap().0;
    assert!(result.is_empty());
}

#[tokio::test]
async fn list_worktrees_returns_entries_from_dir() {
    let tmp = TempDir::new().unwrap();
    let worktrees_dir = tmp.path().join(".huskies").join("worktrees");
    std::fs::create_dir_all(worktrees_dir.join("42_story_foo")).unwrap();
    std::fs::create_dir_all(worktrees_dir.join("43_story_bar")).unwrap();

    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let mut result = api.list_worktrees().await.unwrap().0;
    result.sort_by(|a, b| a.story_id.cmp(&b.story_id));

    assert_eq!(result.len(), 2);
    assert_eq!(result[0].story_id, "42_story_foo");
    assert_eq!(result[1].story_id, "43_story_bar");
}

#[tokio::test]
async fn list_worktrees_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.list_worktrees().await;
    assert!(result.is_err());
}

// --- stop_agent tests ---

#[tokio::test]
async fn stop_agent_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .stop_agent(Json(StopAgentPayload {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
        }))
        .await;
    assert!(result.is_err());
}

#[tokio::test]
async fn stop_agent_returns_error_when_agent_not_found() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .stop_agent(Json(StopAgentPayload {
            story_id: "nonexistent_story".to_string(),
            agent_name: "coder-1".to_string(),
        }))
        .await;
    assert!(result.is_err());
}

#[tokio::test]
async fn stop_agent_succeeds_with_running_agent() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    ctx.services
        .agents
        .inject_test_agent("42_story_foo", "coder-1", AgentStatus::Running);
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .stop_agent(Json(StopAgentPayload {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
        }))
        .await
        .unwrap()
        .0;
    assert!(result);
}

// --- start_agent error path ---

#[tokio::test]
async fn start_agent_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .start_agent(Json(StartAgentPayload {
            story_id: "42_story_foo".to_string(),
            agent_name: None,
        }))
        .await;
    assert!(result.is_err());
}

// --- get_work_item_content tests ---

fn make_stage_dir(root: &path::Path, stage: &str) {
    std::fs::create_dir_all(root.join(".huskies").join("work").join(stage)).unwrap();
}

#[tokio::test]
async fn get_work_item_content_returns_content_from_backlog() {
    crate::crdt_state::init_for_test();
    let tmp = TempDir::new().unwrap();
    let root = tmp.path();
    make_stage_dir(root, "1_backlog");
    std::fs::write(
        root.join(".huskies/work/1_backlog/42_story_foo.md"),
        "---\nname: \"Foo Story\"\n---\n\n# Story 42: Foo Story\n\nSome content.",
    )
    .unwrap();
    // Story 929: name lives in the typed CRDT register, not in YAML on disk.
    crate::crdt_state::write_item(
        "42_story_foo",
        "1_backlog",
        Some("Foo Story"),
        None,
        None,
        None,
        None,
        None,
        None,
        None,
    );
    let ctx = AppContext::new_test(root.to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("42_story_foo".to_string()))
        .await
        .unwrap()
        .0;
    assert!(result.content.contains("Some content."));
    assert_eq!(result.stage, "backlog");
    assert_eq!(result.name, Some("Foo Story".to_string()));
}

#[tokio::test]
async fn get_work_item_content_returns_content_from_current() {
    crate::crdt_state::init_for_test();
    let tmp = TempDir::new().unwrap();
    let root = tmp.path();
    make_stage_dir(root, "2_current");
    std::fs::write(
        root.join(".huskies/work/2_current/43_story_bar.md"),
        "---\nname: \"Bar Story\"\n---\n\nBar content.",
    )
    .unwrap();
    crate::crdt_state::write_item(
        "43_story_bar",
        "2_current",
        Some("Bar Story"),
        None,
        None,
        None,
        None,
        None,
        None,
        None,
    );
    let ctx = AppContext::new_test(root.to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("43_story_bar".to_string()))
        .await
        .unwrap()
        .0;
    assert_eq!(result.stage, "current");
    assert_eq!(result.name, Some("Bar Story".to_string()));
}

#[tokio::test]
async fn get_work_item_content_returns_not_found_when_absent() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("99_story_nonexistent".to_string()))
        .await;
    assert!(result.is_err());
}

#[tokio::test]
async fn get_work_item_content_falls_back_to_crdt_when_no_file() {
    let tmp = TempDir::new().unwrap();
    let root = tmp.path().to_path_buf();
    // Seed content + CRDT with no .md file on disk.
    crate::db::write_item_with_content(
        "44_story_crdt_only",
        "1_backlog",
        "---\nname: \"CRDT Only\"\n---\n\nCRDT content.",
        crate::db::ItemMeta::from_yaml("---\nname: \"CRDT Only\"\n---\n\nCRDT content."),
    );
    let ctx = AppContext::new_test(root);
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("44_story_crdt_only".to_string()))
        .await
        .unwrap()
        .0;
    assert!(result.content.contains("CRDT content."));
    assert_eq!(result.stage, "backlog");
    assert_eq!(result.name, Some("CRDT Only".to_string()));
}

#[tokio::test]
async fn get_work_item_content_crdt_fallback_with_current_stage() {
    let tmp = TempDir::new().unwrap();
    let root = tmp.path().to_path_buf();
    // Seed a CRDT-only story in the coding/current stage.
    crate::db::write_item_with_content(
        "45_story_crdt_current",
        "2_current",
        "---\nname: \"Current CRDT\"\n---\n\nIn progress.",
        crate::db::ItemMeta::from_yaml("---\nname: \"Current CRDT\"\n---\n\nIn progress."),
    );
    let ctx = AppContext::new_test(root);
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("45_story_crdt_current".to_string()))
        .await
        .unwrap()
        .0;
    assert!(result.content.contains("In progress."));
    assert_eq!(result.stage, "current");
    assert_eq!(result.name, Some("Current CRDT".to_string()));
}

#[tokio::test]
async fn get_work_item_content_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_work_item_content(Path("42_story_foo".to_string()))
        .await;
    assert!(result.is_err());
}

// --- get_agent_output tests ---

#[tokio::test]
async fn get_agent_output_returns_empty_when_no_log_exists() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_agent_output(
            Path("42_story_foo".to_string()),
            Path("coder-1".to_string()),
        )
        .await
        .unwrap()
        .0;
    assert_eq!(result.output, "");
}

#[tokio::test]
async fn get_agent_output_returns_concatenated_output_events() {
    use crate::agent_log::AgentLogWriter;
    use crate::agents::AgentEvent;

    let tmp = TempDir::new().unwrap();
    let root = tmp.path();

    let mut writer = AgentLogWriter::new(root, "42_story_foo", "coder-1", "sess-test").unwrap();

    writer
        .write_event(&AgentEvent::Status {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
            status: "running".to_string(),
        })
        .unwrap();
    writer
        .write_event(&AgentEvent::Output {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
            text: "Hello ".to_string(),
        })
        .unwrap();
    writer
        .write_event(&AgentEvent::Output {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
            text: "world\n".to_string(),
        })
        .unwrap();
    writer
        .write_event(&AgentEvent::Done {
            story_id: "42_story_foo".to_string(),
            agent_name: "coder-1".to_string(),
            session_id: None,
        })
        .unwrap();

    let ctx = AppContext::new_test(root.to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_agent_output(
            Path("42_story_foo".to_string()),
            Path("coder-1".to_string()),
        )
        .await
        .unwrap()
        .0;

    // Only output event texts should be concatenated; status and done are excluded.
    assert_eq!(result.output, "Hello world\n");
}

#[tokio::test]
async fn get_agent_output_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_agent_output(
            Path("42_story_foo".to_string()),
            Path("coder-1".to_string()),
        )
        .await;
    assert!(result.is_err());
}

// --- create_worktree error path ---

#[tokio::test]
async fn create_worktree_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .create_worktree(Json(CreateWorktreePayload {
            story_id: "42_story_foo".to_string(),
        }))
        .await;
    assert!(result.is_err());
}

#[tokio::test]
async fn create_worktree_returns_error_when_not_a_git_repo() {
    let tmp = TempDir::new().unwrap();
    // project_root is set but has no git repo — git worktree add will fail
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .create_worktree(Json(CreateWorktreePayload {
            story_id: "42_story_foo".to_string(),
        }))
        .await;
    assert!(result.is_err());
}

// --- remove_worktree error paths ---

#[tokio::test]
async fn remove_worktree_returns_error_when_no_project_root() {
    let tmp = TempDir::new().unwrap();
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    *ctx.state.project_root.lock().unwrap() = None;
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api.remove_worktree(Path("42_story_foo".to_string())).await;
    assert!(result.is_err());
}

#[tokio::test]
async fn remove_worktree_returns_error_when_worktree_not_found() {
    let tmp = TempDir::new().unwrap();
    // project_root is set but no worktree exists for this story_id
    let ctx = AppContext::new_test(tmp.path().to_path_buf());
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .remove_worktree(Path("nonexistent_story".to_string()))
        .await;
    assert!(result.is_err());
}

// --- get_test_results tests ---

#[tokio::test]
async fn get_test_results_returns_none_when_no_results() {
    let tmp = TempDir::new().unwrap();
    let root = make_work_dirs(&tmp);
    let ctx = AppContext::new_test(root);
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_test_results(Path("42_story_foo".to_string()))
        .await
        .unwrap()
        .0;
    assert!(result.is_none());
}

#[tokio::test]
async fn get_test_results_returns_in_memory_results() {
    let tmp = TempDir::new().unwrap();
    let root = make_work_dirs(&tmp);
    let ctx = AppContext::new_test(root);

    // Record test results in-memory.
    {
        let mut workflow = ctx.workflow.lock().unwrap();
        workflow
            .record_test_results_validated(
                "42_story_foo".to_string(),
                vec![crate::workflow::TestCaseResult {
                    name: "unit_test_1".to_string(),
                    status: crate::workflow::TestStatus::Pass,
                    details: None,
                }],
                vec![crate::workflow::TestCaseResult {
                    name: "int_test_1".to_string(),
                    status: crate::workflow::TestStatus::Fail,
                    details: Some("assertion failed".to_string()),
                }],
            )
            .unwrap();
    }

    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_test_results(Path("42_story_foo".to_string()))
        .await
        .unwrap()
        .0
        .expect("should have test results");

    assert_eq!(result.unit.len(), 1);
    assert_eq!(result.unit[0].name, "unit_test_1");
    assert_eq!(result.unit[0].status, "pass");
    assert!(result.unit[0].details.is_none());

    assert_eq!(result.integration.len(), 1);
    assert_eq!(result.integration[0].name, "int_test_1");
    assert_eq!(result.integration[0].status, "fail");
    assert_eq!(
        result.integration[0].details.as_deref(),
        Some("assertion failed")
    );
}

#[tokio::test]
async fn get_test_results_falls_back_to_file_persisted_results() {
    let tmp = TempDir::new().unwrap();
    let root = tmp.path().to_path_buf();
    // Create work dirs including 2_current for the story file.
    for stage in &["1_backlog", "2_current", "5_done", "6_archived"] {
        std::fs::create_dir_all(root.join(".huskies").join("work").join(stage)).unwrap();
    }

    // Use a unique high-numbered story ID to avoid collisions with the
    // "42_story_foo" entry used by get_test_results_returns_none_when_no_results.
    let story_content = r#"---
name: "Test story"
---
# Test story

## Test Results

<!-- huskies-test-results: {"unit":[{"name":"from_file","status":"pass","details":null}],"integration":[]} -->
"#;
    std::fs::write(
        root.join(".huskies/work/2_current/9906_story_persisted_results.md"),
        story_content,
    )
    .unwrap();
    // Also write to the content store so read_story_content returns this
    // test's content even when another test left a stale entry in the
    // global content store.
    crate::db::ensure_content_store();
    crate::db::write_content("9906_story_persisted_results", story_content);

    let ctx = AppContext::new_test(root);
    let api = AgentsApi { ctx: Arc::new(ctx) };
    let result = api
        .get_test_results(Path("9906_story_persisted_results".to_string()))
        .await
        .unwrap()
        .0
        .expect("should fall back to file results");

    assert_eq!(result.unit.len(), 1);
    assert_eq!(result.unit[0].name, "from_file");
    assert_eq!(result.unit[0].status, "pass");
}