gitgrip 0.10.0

//! Operational integration tests for griptree commands.
//!
//! Tests `gr tree add/list/remove/lock/unlock` against real git worktrees
//! in temporary workspaces. All tests run offline.

mod common;

use std::fs;
use std::path::Path;

use serde_yaml::Value;

use common::assertions;
use common::fixtures::WorkspaceBuilder;
use common::git_helpers;

fn set_default_branch(manifest_path: &Path, repo: &str, branch: &str) {
    let content = fs::read_to_string(manifest_path).unwrap();
    let mut doc: Value = serde_yaml::from_str(&content).unwrap();
    assert!(
        !doc["repos"][repo].is_null(),
        "repo {} missing from manifest",
        repo
    );
    doc["repos"][repo]["default_branch"] = Value::String(branch.to_string());
    fs::write(manifest_path, serde_yaml::to_string(&doc).unwrap()).unwrap();
}

// ── Tree Add ──────────────────────────────────────────────────────

#[test]
fn test_tree_add_creates_worktrees() {
    let ws = WorkspaceBuilder::new()
        .add_repo("app")
        .add_repo("lib")
        .build();
    let manifest = ws.load_manifest();

    let result = gitgrip::cli::commands::tree::run_tree_add(
        &ws.workspace_root,
        &manifest,
        "feat/new-feature",
    );

    assert!(
        result.is_ok(),
        "tree add should succeed: {:?}",
        result.err()
    );

    // Griptree directory should be created as sibling to workspace
    let tree_path = ws.workspace_root.parent().unwrap().join("feat-new-feature");
    assertions::assert_file_exists(&tree_path);

    // .griptree pointer file should exist
    let pointer_path = tree_path.join(".griptree");
    assertions::assert_file_exists(&pointer_path);

    // Verify pointer contents
    let pointer: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&pointer_path).unwrap()).unwrap();
    assert_eq!(pointer["branch"], "feat/new-feature");
    assert_eq!(
        pointer["mainWorkspace"],
        ws.workspace_root.to_string_lossy().as_ref()
    );
    assert!(!pointer["locked"].as_bool().unwrap());

    // griptrees.json registry should be updated
    let registry_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    assertions::assert_file_exists(&registry_path);
    let registry: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&registry_path).unwrap()).unwrap();
    assert!(
        registry["griptrees"]["feat/new-feature"].is_object(),
        "registry should contain the new griptree"
    );

    // Each repo should have a worktree directory in the griptree
    assertions::assert_file_exists(&tree_path.join("app"));
    assertions::assert_file_exists(&tree_path.join("lib"));

    // Worktrees should be on the new branch
    assertions::assert_on_branch(&tree_path.join("app"), "feat/new-feature");
    assertions::assert_on_branch(&tree_path.join("lib"), "feat/new-feature");
}

#[test]
fn test_tree_add_writes_repo_upstreams() {
    let ws = WorkspaceBuilder::new()
        .add_repo("app")
        .add_repo("lib")
        .build();

    git_helpers::create_branch(&ws.repo_path("lib"), "dev");
    git_helpers::commit_file(&ws.repo_path("lib"), "dev.txt", "dev", "Add dev");
    git_helpers::push_branch(&ws.repo_path("lib"), "origin", "dev");
    git_helpers::checkout(&ws.repo_path("lib"), "main");

    let manifest_path = ws
        .workspace_root
        .join(".gitgrip")
        .join("manifests")
        .join("manifest.yaml");
    set_default_branch(&manifest_path, "lib", "dev");
    let manifest = ws.load_manifest();

    let result =
        gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/upstream");
    assert!(
        result.is_ok(),
        "tree add should succeed: {:?}",
        result.err()
    );

    let tree_path = ws.workspace_root.parent().unwrap().join("feat-upstream");
    let config_path = tree_path.join(".gitgrip").join("griptree.json");
    let config: serde_json::Value =
        serde_json::from_str(&fs::read_to_string(&config_path).unwrap()).unwrap();

    assert_eq!(config["repoUpstreams"]["app"], "origin/main");
    assert_eq!(config["repoUpstreams"]["lib"], "origin/dev");
}

#[test]
fn test_tree_add_with_manifest_repo() {
    let ws = WorkspaceBuilder::new()
        .add_repo("app")
        .with_manifest_repo()
        .build();
    let manifest = ws.load_manifest();

    let result = gitgrip::cli::commands::tree::run_tree_add(
        &ws.workspace_root,
        &manifest,
        "feat/with-manifest",
    );

    assert!(
        result.is_ok(),
        "tree add with manifest repo should succeed: {:?}",
        result.err()
    );

    let tree_path = ws
        .workspace_root
        .parent()
        .unwrap()
        .join("feat-with-manifest");

    // Manifest worktree should be created in griptree
    let tree_manifest_dir = tree_path.join(".gitgrip").join("manifests");
    assertions::assert_file_exists(&tree_manifest_dir);

    // manifest.yaml should exist in griptree's manifest dir
    assertions::assert_file_exists(&tree_manifest_dir.join("manifest.yaml"));

    // Pointer should reference the manifest worktree
    let pointer_path = tree_path.join(".griptree");
    let pointer: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&pointer_path).unwrap()).unwrap();
    assert!(
        pointer["manifestBranch"].is_string(),
        "pointer should have manifestBranch"
    );
}

#[test]
fn test_tree_add_duplicate_fails() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    // Create first griptree
    gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/dup")
        .expect("first tree add should succeed");

    // Attempt to create same griptree again
    let result =
        gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/dup");

    assert!(result.is_err(), "duplicate tree add should fail");
    let err = result.unwrap_err().to_string();
    assert!(
        err.contains("already exists"),
        "error should mention 'already exists': {}",
        err
    );
}

// ── Tree List ──────────────────────────────────────────────────────

#[test]
fn test_tree_list_empty() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();

    let result = gitgrip::cli::commands::tree::run_tree_list(&ws.workspace_root);

    assert!(
        result.is_ok(),
        "tree list with no griptrees should succeed: {:?}",
        result.err()
    );
}

#[test]
fn test_tree_list_after_add() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/listed")
        .expect("tree add should succeed");

    let result = gitgrip::cli::commands::tree::run_tree_list(&ws.workspace_root);

    assert!(
        result.is_ok(),
        "tree list should succeed: {:?}",
        result.err()
    );

    // Verify registry has the entry
    let registry_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    let registry: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&registry_path).unwrap()).unwrap();
    assert!(registry["griptrees"]["feat/listed"].is_object());
}

// ── Tree Remove ──────────────────────────────────────────────────

#[test]
fn test_tree_remove() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/removeme")
        .expect("tree add should succeed");

    let tree_path = ws.workspace_root.parent().unwrap().join("feat-removeme");
    assert!(
        tree_path.exists(),
        "griptree dir should exist before remove"
    );

    let result =
        gitgrip::cli::commands::tree::run_tree_remove(&ws.workspace_root, "feat/removeme", false);

    assert!(
        result.is_ok(),
        "tree remove should succeed: {:?}",
        result.err()
    );

    // Directory should be gone
    assert!(!tree_path.exists(), "griptree directory should be removed");

    // Registry should no longer contain the entry
    let registry_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    let registry: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&registry_path).unwrap()).unwrap();
    assert!(
        registry["griptrees"]["feat/removeme"].is_null(),
        "registry should not contain removed griptree"
    );
}

#[test]
fn test_tree_remove_nonexistent_fails() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();

    // Create the griptrees.json so remove has something to read
    let config_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    std::fs::write(&config_path, r#"{"griptrees":{}}"#).unwrap();

    let result =
        gitgrip::cli::commands::tree::run_tree_remove(&ws.workspace_root, "feat/ghost", false);

    assert!(result.is_err(), "removing nonexistent griptree should fail");
    let err = result.unwrap_err().to_string();
    assert!(
        err.contains("not found"),
        "error should mention 'not found': {}",
        err
    );
}

// ── Tree Lock / Unlock ──────────────────────────────────────────

#[test]
fn test_tree_lock_prevents_remove() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/locked")
        .expect("tree add should succeed");

    // Lock the griptree
    let lock_result = gitgrip::cli::commands::tree::run_tree_lock(
        &ws.workspace_root,
        "feat/locked",
        Some("important work"),
    );
    assert!(
        lock_result.is_ok(),
        "tree lock should succeed: {:?}",
        lock_result.err()
    );

    // Verify registry shows locked
    let registry_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    let registry: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&registry_path).unwrap()).unwrap();
    assert!(
        registry["griptrees"]["feat/locked"]["locked"]
            .as_bool()
            .unwrap(),
        "registry should show locked"
    );
    assert_eq!(
        registry["griptrees"]["feat/locked"]["lock_reason"],
        "important work"
    );

    // Verify .griptree pointer also shows locked
    let tree_path = ws.workspace_root.parent().unwrap().join("feat-locked");
    let pointer: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(tree_path.join(".griptree")).unwrap())
            .unwrap();
    assert!(
        pointer["locked"].as_bool().unwrap(),
        "pointer should show locked"
    );

    // Try to remove without force - should fail
    let remove_result =
        gitgrip::cli::commands::tree::run_tree_remove(&ws.workspace_root, "feat/locked", false);
    assert!(
        remove_result.is_err(),
        "removing locked griptree should fail"
    );
    let err = remove_result.unwrap_err().to_string();
    assert!(
        err.contains("locked"),
        "error should mention 'locked': {}",
        err
    );

    // Force remove should succeed
    let force_result =
        gitgrip::cli::commands::tree::run_tree_remove(&ws.workspace_root, "feat/locked", true);
    assert!(
        force_result.is_ok(),
        "force remove should succeed: {:?}",
        force_result.err()
    );
    assert!(
        !tree_path.exists(),
        "griptree dir should be removed after force"
    );
}

#[test]
fn test_tree_unlock_allows_remove() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    gitgrip::cli::commands::tree::run_tree_add(&ws.workspace_root, &manifest, "feat/unlock-me")
        .expect("tree add should succeed");

    // Lock it
    gitgrip::cli::commands::tree::run_tree_lock(&ws.workspace_root, "feat/unlock-me", None)
        .expect("lock should succeed");

    // Unlock it
    let unlock_result =
        gitgrip::cli::commands::tree::run_tree_unlock(&ws.workspace_root, "feat/unlock-me");
    assert!(
        unlock_result.is_ok(),
        "unlock should succeed: {:?}",
        unlock_result.err()
    );

    // Verify registry shows unlocked
    let registry_path = ws.workspace_root.join(".gitgrip").join("griptrees.json");
    let registry: serde_json::Value =
        serde_json::from_str(&std::fs::read_to_string(&registry_path).unwrap()).unwrap();
    assert!(
        !registry["griptrees"]["feat/unlock-me"]["locked"]
            .as_bool()
            .unwrap(),
        "registry should show unlocked"
    );

    // Remove should now succeed
    let remove_result =
        gitgrip::cli::commands::tree::run_tree_remove(&ws.workspace_root, "feat/unlock-me", false);
    assert!(
        remove_result.is_ok(),
        "remove after unlock should succeed: {:?}",
        remove_result.err()
    );
}

// ── Tree Edge Cases ──────────────────────────────────────────────

#[test]
fn test_tree_add_branch_name_normalization() {
    let ws = WorkspaceBuilder::new().add_repo("app").build();
    let manifest = ws.load_manifest();

    let result = gitgrip::cli::commands::tree::run_tree_add(
        &ws.workspace_root,
        &manifest,
        "fix/bug/critical",
    );

    assert!(
        result.is_ok(),
        "tree add with nested slashes should succeed: {:?}",
        result.err()
    );

    // Branch slashes should become dashes in directory name
    let tree_path = ws.workspace_root.parent().unwrap().join("fix-bug-critical");
    assertions::assert_file_exists(&tree_path);
    assertions::assert_on_branch(&tree_path.join("app"), "fix/bug/critical");
}

#[test]
fn test_tree_original_repos_unaffected() {
    let ws = WorkspaceBuilder::new()
        .add_repo("app")
        .add_repo("lib")
        .build();
    let manifest = ws.load_manifest();

    // Verify repos start on main
    assertions::assert_on_branch(&ws.repo_path("app"), "main");
    assertions::assert_on_branch(&ws.repo_path("lib"), "main");

    gitgrip::cli::commands::tree::run_tree_add(
        &ws.workspace_root,
        &manifest,
        "feat/no-side-effects",
    )
    .expect("tree add should succeed");

    // Original repos should still be on main
    assertions::assert_on_branch(&ws.repo_path("app"), "main");
    assertions::assert_on_branch(&ws.repo_path("lib"), "main");
}