#include "../lexer/lexer.h"
#include "../parser/parser.h"
#include "../semantic/semantic.h"
#include "../ir/ir.h"
#include "../ir/ir_gen.h"
#include "../runtime/runtime.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static int test_count = 0;
static int pass_count = 0;

static void run_test_int(const char* name, const char* source, int expected) {
    test_count++;

    RavaLexer_t* lexer = rava_lexer_create(source);
    RavaParser_t* parser = rava_parser_create(lexer);
    RavaASTNode_t* ast = rava_parser_parse(parser);

    if (!ast || parser->had_error) {
        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
        rava_parser_destroy(parser);
        rava_lexer_destroy(lexer);
        return;
    }

    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
    rava_semantic_analyze(analyzer, ast);

    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);

    RavaVM_t* vm = rava_vm_create(program);

    if (!rava_vm_execute(vm, "Test", "main")) {
        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
        rava_vm_destroy(vm);
        rava_program_destroy(program);
        rava_ir_generator_destroy(ir_gen);
        rava_semantic_analyzer_destroy(analyzer);
        rava_ast_node_destroy(ast);
        rava_parser_destroy(parser);
        rava_lexer_destroy(lexer);
        return;
    }

    RavaValue_t result = rava_vm_get_result(vm);
    int32_t result_int = rava_value_as_int(result);

    if (result_int == expected) {
        printf("PASS: %s (result=%d)\n", name, result_int);
        pass_count++;
    } else {
        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
    }

    rava_vm_destroy(vm);
    rava_program_destroy(program);
    rava_ir_generator_destroy(ir_gen);
    rava_semantic_analyzer_destroy(analyzer);
    rava_ast_node_destroy(ast);
    rava_parser_destroy(parser);
    rava_lexer_destroy(lexer);
}

int main(void) {
    printf("=== Multi-dimensional Array Tests ===\n\n");

    run_test_int("2d array outer length",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[4][5];\n"
        "        return a.length;\n"
        "    }\n"
        "}\n", 4);

    run_test_int("2d array inner length",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[4][5];\n"
        "        return a[0].length;\n"
        "    }\n"
        "}\n", 5);

    run_test_int("2d array basic store and load",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[2][3];\n"
        "        a[0][1] = 15;\n"
        "        return a[0][1];\n"
        "    }\n"
        "}\n", 15);

    run_test_int("2d array multiple cells",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[2][3];\n"
        "        a[0][0] = 1;\n"
        "        a[0][1] = 2;\n"
        "        a[1][0] = 3;\n"
        "        a[1][1] = 4;\n"
        "        return a[0][0] + a[0][1] + a[1][0] + a[1][1];\n"
        "    }\n"
        "}\n", 10);

    run_test_int("2d array row iteration",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[3][2];\n"
        "        a[0][0] = 1; a[0][1] = 2;\n"
        "        a[1][0] = 3; a[1][1] = 4;\n"
        "        a[2][0] = 5; a[2][1] = 6;\n"
        "        int sum = 0;\n"
        "        for (int i = 0; i < a.length; i++) {\n"
        "            sum = sum + a[i][0] + a[i][1];\n"
        "        }\n"
        "        return sum;\n"
        "    }\n"
        "}\n", 21);

    run_test_int("2d array nested loop",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[2][3];\n"
        "        int v = 1;\n"
        "        for (int i = 0; i < 2; i++) {\n"
        "            for (int j = 0; j < 3; j++) {\n"
        "                a[i][j] = v;\n"
        "                v = v + 1;\n"
        "            }\n"
        "        }\n"
        "        return a[0][0] + a[0][2] + a[1][1];\n"
        "    }\n"
        "}\n", 9);

    run_test_int("2d array different inner lengths",
        "public class Test {\n"
        "    public static int main() {\n"
        "        int[][] a = new int[3][4];\n"
        "        int[][] b = new int[2][6];\n"
        "        return a[0].length + b[0].length;\n"
        "    }\n"
        "}\n", 10);

    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);

    return (pass_count == test_count) ? 0 : 1;
}