// End-to-end integration test for plugin hooks
use color_eyre::eyre::Result;
use plugins::PluginManager;
use std::fs;
use tempfile::TempDir;

fn create_test_plugin_with_hooks(plugin_dir: &std::path::Path) -> Result<()> {
    fs::create_dir_all(plugin_dir)?;

    // Create plugin manifest
    let manifest = serde_json::json!({
        "name": "test-hook-plugin",
        "version": "1.0.0",
        "description": "Test plugin with hooks",
        "commands": [],
        "agents": [],
        "skills": [],
        "hooks": {},
        "mcp_servers": []
    });
    fs::write(
        plugin_dir.join("plugin.json"),
        serde_json::to_string_pretty(&manifest)?,
    )?;

    // Create hooks directory and hooks.json
    let hooks_dir = plugin_dir.join("hooks");
    fs::create_dir_all(&hooks_dir)?;

    let hooks_config = serde_json::json!({
        "description": "Validate edit and write operations",
        "hooks": {
            "PreToolUse": [
                {
                    "matcher": "Edit|Write",
                    "hooks": [
                        {
                            "type": "command",
                            "command": "python3 ${CLAUDE_PLUGIN_ROOT}/hooks/validate.py",
                            "timeout": 5000
                        }
                    ]
                },
                {
                    "matcher": "Bash",
                    "hooks": [
                        {
                            "type": "command",
                            "command": "echo 'Bash hook' && exit 0"
                        }
                    ]
                }
            ],
            "PostToolUse": [
                {
                    "hooks": [
                        {
                            "type": "command",
                            "command": "echo 'Post-tool hook' && exit 0"
                        }
                    ]
                }
            ]
        }
    });
    fs::write(
        hooks_dir.join("hooks.json"),
        serde_json::to_string_pretty(&hooks_config)?,
    )?;

    Ok(())
}

#[test]
fn test_load_plugin_hooks_config() -> Result<()> {
    let temp_dir = TempDir::new()?;
    let plugin_dir = temp_dir.path().join("test-plugin");
    create_test_plugin_with_hooks(&plugin_dir)?;

    // Load all plugins
    let mut plugin_manager = PluginManager::with_dirs(vec![temp_dir.path().to_path_buf()]);
    plugin_manager.load_all()?;

    assert_eq!(plugin_manager.plugins().len(), 1);
    let plugin = &plugin_manager.plugins()[0];

    // Load hooks config
    let hooks_config = plugin.load_hooks_config()?;
    assert!(hooks_config.is_some());

    let config = hooks_config.unwrap();
    assert_eq!(config.description, Some("Validate edit and write operations".to_string()));
    assert!(config.hooks.contains_key("PreToolUse"));
    assert!(config.hooks.contains_key("PostToolUse"));

    // Check PreToolUse hooks
    let pre_tool_hooks = &config.hooks["PreToolUse"];
    assert_eq!(pre_tool_hooks.len(), 2);

    // First matcher: Edit|Write
    assert_eq!(pre_tool_hooks[0].matcher, Some("Edit|Write".to_string()));
    assert_eq!(pre_tool_hooks[0].hooks.len(), 1);
    assert_eq!(pre_tool_hooks[0].hooks[0].hook_type, "command");
    assert!(pre_tool_hooks[0].hooks[0].command.as_ref().unwrap().contains("validate.py"));

    // Second matcher: Bash
    assert_eq!(pre_tool_hooks[1].matcher, Some("Bash".to_string()));
    assert_eq!(pre_tool_hooks[1].hooks.len(), 1);

    Ok(())
}

#[test]
fn test_plugin_hooks_substitution() -> Result<()> {
    let temp_dir = TempDir::new()?;
    let plugin_dir = temp_dir.path().join("test-plugin");
    create_test_plugin_with_hooks(&plugin_dir)?;

    // Load all plugins
    let mut plugin_manager = PluginManager::with_dirs(vec![temp_dir.path().to_path_buf()]);
    plugin_manager.load_all()?;

    assert_eq!(plugin_manager.plugins().len(), 1);
    let plugin = &plugin_manager.plugins()[0];

    // Load hooks config and register
    let hooks_config = plugin.load_hooks_config()?.unwrap();
    let hooks_to_register = plugin.register_hooks_with_manager(&hooks_config);

    // Check that ${CLAUDE_PLUGIN_ROOT} was substituted
    let edit_write_hook = hooks_to_register.iter()
        .find(|(event, _, pattern, _)| {
            event == "PreToolUse" && pattern.as_ref().map(|p| p.contains("Edit")).unwrap_or(false)
        })
        .unwrap();

    // The command should have the plugin path substituted
    assert!(edit_write_hook.1.contains(&plugin_dir.to_string_lossy().to_string()));
    assert!(edit_write_hook.1.contains("validate.py"));
    assert!(!edit_write_hook.1.contains("${CLAUDE_PLUGIN_ROOT}"));

    Ok(())
}

#[test]
fn test_multiple_plugins_with_hooks() -> Result<()> {
    let temp_dir = TempDir::new()?;

    // Create two plugins with hooks
    let plugin1_dir = temp_dir.path().join("plugin1");
    create_test_plugin_with_hooks(&plugin1_dir)?;

    let plugin2_dir = temp_dir.path().join("plugin2");
    create_test_plugin_with_hooks(&plugin2_dir)?;

    // Load all plugins
    let mut plugin_manager = PluginManager::with_dirs(vec![temp_dir.path().to_path_buf()]);
    plugin_manager.load_all()?;

    assert_eq!(plugin_manager.plugins().len(), 2);

    // Collect all hooks from all plugins
    let mut total_hooks = 0;
    for plugin in plugin_manager.plugins() {
        if let Ok(Some(hooks_config)) = plugin.load_hooks_config() {
            let hooks = plugin.register_hooks_with_manager(&hooks_config);
            total_hooks += hooks.len();
        }
    }

    // Each plugin has 3 hooks (2 PreToolUse + 1 PostToolUse)
    assert_eq!(total_hooks, 6);

    Ok(())
}