// calendars.rhai - Functions for handling calendars

import "utils" as utils;
import "../models/calendar_model" as calendar_model;

// Get all calendars
fn get_calendars() {
    return calendar_model::get_sample_calendars();
}

// Get a specific calendar by ID
fn get_calendar(calendar_id) {
    let calendars = get_all_calendars();
    return utils::find_by_id(calendars, calendar_id);
}

// Get calendars owned by a specific user
fn get_calendars_by_owner(user_id) {
    let calendars = get_all_calendars();
    return utils::filter_by_property(calendars, "owner_id", user_id);
}

// Get calendars shared with a specific user
fn get_calendars_shared_with(user_id) {
    let calendars = get_all_calendars();
    let shared_calendars = [];
    
    for calendar in calendars {
        if utils::array_contains(calendar.shared_with, user_id) {
            shared_calendars.push(calendar);
        }
    }
    
    return shared_calendars;
}

// Get all calendars accessible by a user (owned + shared)
fn get_accessible_calendars(user_id) {
    let owned = get_calendars_by_owner(user_id);
    let shared_calendars = get_calendars_shared_with(user_id);
    
    // Combine the two arrays
    for calendar in shared_calendars {
        owned.push(calendar);
    }
    
    return owned;
}

// Create a new calendar
fn create_calendar(name, owner_id, description, color, shared_with, visibility) {
    // Generate a simple ID (in a real app, we would use a proper ID generation method)
    let id = "cal" + (get_all_calendars().len() + 1).to_string();
    
    return calendar_model::create_calendar(
        id, name, owner_id, description, color, shared_with, visibility
    );
}

// Format calendar details for display
fn format_calendar(calendar) {
    if utils::is_empty(calendar) {
        return "Calendar not found";
    }
    
    let shared_with_count = calendar.shared_with.len();
    
    return `${calendar.name} (${calendar.color})
Description: ${calendar.description}
Owner: ${calendar.owner_id}
Visibility: ${calendar.visibility}
Shared with: ${shared_with_count} users`;
}