kandil_code 2.1.1

//! Plugin Marketplace Framework
//!
//! Implements a verified plugin marketplace with security audits
//! and revenue sharing for plugin developers

use anyhow::Result;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::path::Path;
use tokio::fs;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PluginTrustLevel {
    Unverified, // No security audit performed
    Verified,   // Passed security audit
    Official,   // Official Kandil plugin
    Community,  // Community submitted and reviewed
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PluginManifest {
    pub name: String,
    pub version: String,
    pub description: String,
    pub author: String,
    pub homepage: Option<String>,
    pub license: String,
    pub kandil_version: String, // Compatible Kandil version
    pub entry_point: String,    // Main executable
    pub dependencies: Vec<String>,
    pub trust_level: PluginTrustLevel,
    pub revenue_share: u8, // Percentage for plugin developer (0-100)
    pub download_count: u64,
    pub rating: f32, // Average rating (0.0-5.0)
    pub security_audit_date: Option<std::time::SystemTime>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PluginMetadata {
    pub manifest: PluginManifest,
    pub install_path: String,
    pub installed_at: std::time::SystemTime,
    pub enabled: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MarketplaceConfig {
    pub trusted_sources: Vec<String>,
    pub auto_update: bool,
    pub security_scan_on_install: bool,
    pub revenue_share_percent: u8, // Default revenue share for marketplace
}

impl Default for MarketplaceConfig {
    fn default() -> Self {
        Self {
            trusted_sources: vec!["https://registry.kandil.dev".to_string()],
            auto_update: true,
            security_scan_on_install: true,
            revenue_share_percent: 70, // Default 70% to plugin developer
        }
    }
}

pub struct PluginMarketplace {
    plugins: HashMap<String, PluginMetadata>,
    config: MarketplaceConfig,
    marketplace_url: String,
}

impl PluginMarketplace {
    pub fn new(marketplace_url: &str) -> Self {
        Self {
            plugins: HashMap::new(),
            config: MarketplaceConfig::default(),
            marketplace_url: marketplace_url.to_string(),
        }
    }

    pub async fn install_plugin(&mut self, source: &str) -> Result<String> {
        // Determine if source is a URL, local file, or registry name
        let plugin_path = if source.starts_with("http") {
            // Download from URL
            self.download_plugin(source).await?
        } else if Path::new(source).exists() {
            // Local file
            source.to_string()
        } else {
            // Registry name (e.g., "kandil-plugins/vercel")
            self.download_from_registry(source).await?
        };

        // Verify plugin security if configured
        if self.config.security_scan_on_install {
            self.scan_plugin_security(&plugin_path).await?;
        }

        // Extract and validate plugin manifest
        let manifest = self.validate_plugin(&plugin_path).await?;

        // Install plugin to user's plugin directory
        let install_path = self.install_to_user_dir(&manifest, &plugin_path).await?;

        // Add to internal registry
        let metadata = PluginMetadata {
            manifest,
            install_path,
            installed_at: std::time::SystemTime::now(),
            enabled: true,
        };

        self.plugins
            .insert(metadata.manifest.name.clone(), metadata);

        Ok(format!("Plugin '{}' installed successfully", source))
    }

    async fn download_plugin(&self, url: &str) -> Result<String> {
        // In a real implementation, this would download the plugin from a URL
        // For now, we'll simulate by creating a temp file
        let temp_dir = std::env::temp_dir();
        let plugin_path = temp_dir.join("temp_plugin.kandil");

        // Simulate download
        fs::write(&plugin_path, b"simulated_plugin_content").await?;

        Ok(plugin_path.to_string_lossy().to_string())
    }

    async fn download_from_registry(&self, plugin_name: &str) -> Result<String> {
        // In a real implementation, this would query the registry
        // For now, throw an error to indicate this needs implementation
        println!("Would download plugin '{}' from registry", plugin_name);
        Err(anyhow::anyhow!(
            "Registry download not implemented in simulation"
        ))
    }

    async fn scan_plugin_security(&self, plugin_path: &str) -> Result<()> {
        // Perform security scanning of the plugin
        // This would involve code analysis, signature verification, etc.
        println!("Scanning plugin for security: {}", plugin_path);

        // Simulate security scan
        // In a real implementation, this would analyze the plugin code for malicious patterns
        // Check for dangerous system calls, network access, file system modifications, etc.

        // For now, just return Ok
        Ok(())
    }

    async fn validate_plugin(&self, plugin_path: &str) -> Result<PluginManifest> {
        // Validate plugin format and extract manifest
        // For now, we'll create a dummy manifest

        // In a real implementation, this would:
        // 1. Extract the plugin manifest from the package
        // 2. Validate the manifest structure
        // 3. Check compatibility with current Kandil version
        // 4. Verify digital signatures if available

        Ok(PluginManifest {
            name: "example-plugin".to_string(),
            version: "1.0.0".to_string(),
            description: "Example plugin".to_string(),
            author: "Example Author".to_string(),
            homepage: Some("https://example.com".to_string()),
            license: "MIT".to_string(),
            kandil_version: "0.1.0".to_string(),
            entry_point: "main.exe".to_string(),
            dependencies: vec![],
            trust_level: PluginTrustLevel::Unverified,
            revenue_share: self.config.revenue_share_percent,
            download_count: 0,
            rating: 0.0,
            security_audit_date: None,
        })
    }

    async fn install_to_user_dir(
        &self,
        manifest: &PluginManifest,
        source_path: &str,
    ) -> Result<String> {
        // Install plugin to user's plugin directory
        let user_plugins_dir = self.get_user_plugins_dir()?;
        let plugin_dir = user_plugins_dir.join(&manifest.name);

        fs::create_dir_all(&plugin_dir).await?;

        // Copy plugin files to user directory
        let dest_path = plugin_dir.join(&manifest.entry_point);
        fs::copy(source_path, &dest_path).await?;

        Ok(plugin_dir.to_string_lossy().to_string())
    }

    fn get_user_plugins_dir(&self) -> Result<std::path::PathBuf> {
        // Get the user's Kandil plugins directory
        let home_dir =
            dirs::home_dir().ok_or_else(|| anyhow::anyhow!("Could not get home directory"))?;
        Ok(home_dir.join(".kandil").join("plugins"))
    }

    pub async fn list_installed_plugins(&self) -> Vec<&PluginMetadata> {
        self.plugins.values().collect()
    }

    pub async fn uninstall_plugin(&mut self, plugin_name: &str) -> Result<()> {
        if let Some(metadata) = self.plugins.get(plugin_name) {
            // Remove plugin directory
            if Path::new(&metadata.install_path).exists() {
                fs::remove_dir_all(&metadata.install_path).await?;
            }

            // Remove from internal registry
            self.plugins.remove(plugin_name);

            Ok(())
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub async fn enable_plugin(&mut self, plugin_name: &str) -> Result<()> {
        if let Some(metadata) = self.plugins.get_mut(plugin_name) {
            metadata.enabled = true;
            Ok(())
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub async fn disable_plugin(&mut self, plugin_name: &str) -> Result<()> {
        if let Some(metadata) = self.plugins.get_mut(plugin_name) {
            metadata.enabled = false;
            Ok(())
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub async fn search_plugins(&self, query: &str) -> Result<Vec<PluginManifest>> {
        // In a real implementation, this would query the remote marketplace
        // For now, return an empty list to indicate it's not implemented
        println!("Searching for plugins matching: {}", query);
        Ok(vec![])
    }

    pub async fn get_plugin_details(&self, plugin_name: &str) -> Result<PluginManifest> {
        if let Some(metadata) = self.plugins.get(plugin_name) {
            Ok(metadata.manifest.clone())
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub async fn update_plugin(&self, plugin_name: &str) -> Result<()> {
        if !self.config.auto_update {
            return Err(anyhow::anyhow!("Auto-update is disabled in configuration"));
        }

        if let Some(metadata) = self.plugins.get(plugin_name) {
            // Check for updates in the marketplace
            // Download and install the update
            println!("Updating plugin: {}", plugin_name);
            Ok(())
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub async fn run_plugin(&self, plugin_name: &str, args: &[String]) -> Result<String> {
        if let Some(metadata) = self.plugins.get(plugin_name) {
            if !metadata.enabled {
                return Err(anyhow::anyhow!("Plugin '{}' is disabled", plugin_name));
            }

            // In a real implementation, this would execute the plugin
            // with proper sandboxing and security measures
            println!("Running plugin: {} with args: {:?}", plugin_name, args);

            // For simulation, return a dummy result
            Ok(format!("Plugin '{}' executed successfully", plugin_name))
        } else {
            Err(anyhow::anyhow!("Plugin '{}' not found", plugin_name))
        }
    }

    pub fn get_config(&self) -> &MarketplaceConfig {
        &self.config
    }

    pub fn set_config(&mut self, config: MarketplaceConfig) {
        self.config = config;
    }
}

pub struct PluginSecurityAuditor;

impl PluginSecurityAuditor {
    pub fn new() -> Self {
        Self
    }

    pub async fn audit_plugin(&self, plugin_path: &str) -> Result<SecurityAuditReport> {
        // Perform comprehensive security audit of plugin
        // This would analyze the plugin code for security vulnerabilities
        println!("Auditing plugin security: {}", plugin_path);

        // For simulation, return a basic report
        Ok(SecurityAuditReport {
            plugin_path: plugin_path.to_string(),
            audit_date: std::time::SystemTime::now(),
            security_score: 85, // Out of 100
            vulnerabilities_found: 0,
            issues: vec![],
            is_safe: true,
        })
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityAuditReport {
    pub plugin_path: String,
    pub audit_date: std::time::SystemTime,
    pub security_score: u8, // 0-100 scale
    pub vulnerabilities_found: u32,
    pub issues: Vec<String>,
    pub is_safe: bool,
}

#[cfg(test)]
mod tests {
    use super::*;

    #[tokio::test]
    async fn test_marketplace_creation() {
        let marketplace = PluginMarketplace::new("https://registry.kandil.dev");
        assert_eq!(marketplace.marketplace_url, "https://registry.kandil.dev");
    }

    #[tokio::test]
    async fn test_plugin_metadata_creation() {
        let manifest = PluginManifest {
            name: "test-plugin".to_string(),
            version: "1.0.0".to_string(),
            description: "Test plugin".to_string(),
            author: "Test Author".to_string(),
            homepage: Some("https://example.com".to_string()),
            license: "MIT".to_string(),
            kandil_version: "0.1.0".to_string(),
            entry_point: "main.js".to_string(),
            dependencies: vec![],
            trust_level: PluginTrustLevel::Verified,
            revenue_share: 70,
            download_count: 0,
            rating: 4.5,
            security_audit_date: None,
        };

        let metadata = PluginMetadata {
            manifest,
            install_path: "/path/to/plugin".to_string(),
            installed_at: std::time::SystemTime::now(),
            enabled: true,
        };

        assert_eq!(metadata.manifest.name, "test-plugin");
        assert!(metadata.enabled);
    }
}