#include "c_ByteRingBuffer.h"
#include <stdlib.h>
#include <stdio.h>


void test_log(const char* test_name) {
    printf("[PASS] %s\n", test_name);
}

int main() {
    printf("==================================================\n");
    printf(" Starting c_ByteRingBuffer Unit Testing Suite\n");
    printf("==================================================\n\n");

    c_ByteRingBuffer_t rb;
    // Set fixed byte size capacity to 4
    c_err_t err = c_ByteRingBuffer_Init(&rb, 4);
    assert(err == C_ERR_SUCCESS);
    assert(c_ByteRingBuffer_IsEmpty(&rb) == C_TRUE);
    test_log("1. Raw byte buffer initialization verified");

    // ==========================================
    // 2. Testing Single Byte Operations
    // ==========================================
    err = c_ByteRingBuffer_WriteByte(&rb, 0xAA); assert(err == C_ERR_SUCCESS);
    err = c_ByteRingBuffer_WriteByte(&rb, 0xBB); assert(err == C_ERR_SUCCESS);
    assert(c_ByteRingBuffer_GetSize(&rb) == 2);

    uint8_t byte_out = 0;
    err = c_ByteRingBuffer_ReadByte(&rb, &byte_out);
    assert(err == C_ERR_SUCCESS);
    assert(byte_out == 0xAA);
    assert(c_ByteRingBuffer_GetSize(&rb) == 1);
    test_log("2. Single byte discrete FIFO verified");

    // Clear buffer out
    c_ByteRingBuffer_ReadByte(&rb, &byte_out);
    assert(c_ByteRingBuffer_IsEmpty(&rb) == C_TRUE);

    // ==========================================
    // 3. Testing Streaming Buffer Operations
    // ==========================================
    uint8_t stream_in[5] = {0x11, 0x22, 0x33, 0x44, 0x55};

    // Total capacity is 4. Passing a length of 5 should stream up to max boundary
    c_size_t written = c_ByteRingBuffer_WriteBuffer(&rb, stream_in, 5);
    assert(written == 4);
    assert(c_ByteRingBuffer_IsFull(&rb) == C_TRUE);

    uint8_t stream_out[4] = {0};
    c_size_t read = c_ByteRingBuffer_ReadBuffer(&rb, stream_out, 4);
    assert(read == 4);
    assert(stream_out[0] == 0x11);
    assert(stream_out[3] == 0x44);
    assert(c_ByteRingBuffer_IsEmpty(&rb) == C_TRUE);
    test_log("3. Bulk string/buffer array streams chunk-read verified");

    c_ByteRingBuffer_Destroy(&rb);
    test_log("4. Clean resource teardown verified");

    printf("\n==================================================\n");
    printf(" Success! Byte RingBuffer tests passed!\n");
    printf("==================================================\n");
    return 0;
}