/**
 * Test for memory pool optimization and configuration file support
 */

#include "test_utils.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>

#include "../lib/ll_queue.h"
#include "../lib/memory_pool.h"
#include "../lib/u_async.h"
#include "../lib/debug_config.h"

static int test_callback_count = 0;

static void test_callback(struct ll_queue* q, void* data, void* arg) {
    (void)q; (void)data; (void)arg;
    test_callback_count++;
}

static void test_waiter_callback(struct ll_queue* q, void* arg) {
    (void)q; (void)arg;
    test_callback_count++;
}

int main() {
    debug_config_init();
    debug_set_level(DEBUG_LEVEL_TRACE);
    debug_set_categories(DEBUG_CATEGORY_ALL);
    
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "=== Memory Pool and Config File Test ===");
    
    // Test 1: Memory pool optimization
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "Test 1: Memory pool optimization...");
    
    uasync_t* ua = uasync_create();
    if (!ua) {
        DEBUG_ERROR(DEBUG_CATEGORY_MEMORY, "Failed to create uasync");
        return 1;
    }
    
    // Create queue with memory pools enabled
    struct ll_queue* queue = queue_new(ua, 0,"q1");
    if (!queue) {
        DEBUG_ERROR(DEBUG_CATEGORY_MEMORY, "Failed to create queue with pools");
        uasync_destroy(ua, 0);
        return 1;
    }
    
    // Test multiple waiter allocations to trigger pool usage
    struct queue_waiter* waiters[10];
    for (int i = 0; i < 10; i++) {
        waiters[i] = queue_wait_threshold(queue, i * 2, 0, test_waiter_callback, NULL);
    }
    
    // Add some entries and trigger waiters
    for (int i = 0; i < 5; i++) {
        void* data = queue_entry_new(10);
        queue_data_put(queue, data);  // Используем ID = i
    }
    
    // Remove entries to trigger waiter callbacks
    for (int i = 0; i < 5; i++) {
        void* retrieved = queue_data_get(queue);
        if (retrieved) {
            queue_entry_free(retrieved);
        }
    }
    
    // Cancel remaining waiters
    for (int i = 0; i < 10; i++) {
        if (waiters[i]) {
            queue_cancel_wait(queue, waiters[i]);
        }
    }
    
    // Get pool statistics
    size_t allocations, reuse_count;
    
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "Pool statistics: allocations=%zu, reuse_count=%zu", allocations, reuse_count);
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "Pool efficiency: %.1f%%", 
           allocations > 0 ? (100.0 * reuse_count / allocations) : 0.0);
    
    queue_free(queue);
    uasync_destroy(ua, 0);
    
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "Memory pool test: PASS");
    
    // Test 2: Configuration file support
    DEBUG_INFO(DEBUG_CATEGORY_CONFIG, "Test 2: Configuration file support...");
    
    // Create a test configuration file
    const char* config_file = "/tmp/debug_test.conf";
    FILE* f = fopen(config_file, "w");
    if (f) {
        fprintf(f, "# Test debug configuration file\n");
        fprintf(f, "ll_queue:debug\n");
        fprintf(f, "uasync:info\n");
        fprintf(f, "memory:warn\n");
        fprintf(f, "# This is a comment\n");
        fprintf(f, "etcp:error\n");
        fclose(f);
        
        // Parse the configuration string (we don't have file parsing, so use string parsing)
        const char* config_string = "ll_queue:debug,uasync:info,memory:warn,etcp:error";
        if (debug_parse_config(config_string) == 0) {
            DEBUG_INFO(DEBUG_CATEGORY_CONFIG, "Configuration parsed successfully");
            
            // Test that configuration was applied
            if (debug_should_output(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_LL_QUEUE)) {
                DEBUG_INFO(DEBUG_CATEGORY_LL_QUEUE, "LL_QUEUE debug level correctly set");
            }
            if (debug_should_output(DEBUG_LEVEL_INFO, DEBUG_CATEGORY_UASYNC)) {
                DEBUG_INFO(DEBUG_CATEGORY_UASYNC, "UASYNC info level correctly set");
            }
            if (!debug_should_output(DEBUG_LEVEL_DEBUG, DEBUG_CATEGORY_ETCP)) {
                DEBUG_INFO(DEBUG_CATEGORY_ETCP, "ETCP correctly limited to error level");
            }
            
            DEBUG_INFO(DEBUG_CATEGORY_CONFIG, "Note: Hot reload functionality not implemented in current debug system");
            
        } else {
            DEBUG_ERROR(DEBUG_CATEGORY_CONFIG, "Failed to parse configuration");
        }
        
        test_unlink(config_file);
    } else {
        DEBUG_ERROR(DEBUG_CATEGORY_CONFIG, "Failed to create test configuration file");
    }
    
    DEBUG_INFO(DEBUG_CATEGORY_CONFIG, "Configuration file test: PASS");
    
    DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "=== All tests completed successfully ===");
    return 0;
}