import UserActivity, { ActivityAction, ActivityCategory } from '../model/userActivity.model';
import { Types } from 'mongoose';
import { Request } from 'express';

interface LogActivityParams {
    userId: Types.ObjectId | string;
    action: ActivityAction;
    category: ActivityCategory;
    description: string;
    metadata?: {
        ipAddress?: string;
        userAgent?: string;
        eventId?: Types.ObjectId;
        formId?: Types.ObjectId;
        organizationId?: Types.ObjectId;
        trainerId?: Types.ObjectId;
        changes?: Record<string, any>;
        errorMessage?: string;
        statusCode?: number;
        location?: {
            type: "Point";
            coordinates: [number, number];
        };
        duration?: number;
        method?: string;
        endpoint?: string;
        queryParams?: Record<string, any>;
        responseSize?: number;
    };
    sessionId?: string;
    success?: boolean;
}

/**
 * Log user activity to the database
 */
export const logActivity = async (params: LogActivityParams): Promise<void> => {
    try {
        await UserActivity.create({
            user: params.userId,
            action: params.action,
            category: params.category,
            description: params.description,
            metadata: params.metadata || {},
            sessionId: params.sessionId,
            success: params.success !== undefined ? params.success : true,
            timestamp: new Date()
        });
    } catch (error) {
        console.error('Error logging activity:', error);
        // Don't throw - activity logging should not break the main flow
    }
};

/**
 * Extract metadata from Express request
 */
export const extractRequestMetadata = (req: Request) => {
    return {
        ipAddress: req.ip || req.socket.remoteAddress,
        userAgent: req.get('user-agent'),
        method: req.method,
        endpoint: req.originalUrl || req.url
    };
};

/**
 * Log activity from Express request
 */
export const logActivityFromRequest = async (
    req: Request,
    action: ActivityAction,
    category: ActivityCategory,
    description: string,
    additionalMetadata?: Record<string, any>,
    success: boolean = true
): Promise<void> => {
    if (!req.user) {
        console.warn('Cannot log activity: No user in request');
        return;
    }

    const metadata = {
        ...extractRequestMetadata(req),
        ...additionalMetadata
    };

    await logActivity({
        userId: req.user._id,
        action,
        category,
        description,
        metadata,
        success
    });
};

export default {
    logActivity,
    extractRequestMetadata,
    logActivityFromRequest
};