#ifndef _H_MORPH_TOKEN
#define _H_MORPH_TOKEN

#include "loc.h"
#include <stddef.h>
#include <sys/types.h>


typedef enum token_type_e {
    TT_NONE = 0,
    TT_KW,
    TT_OP,
    TT_PUSH_STR,
    TT_PUSH_CSTR,
    TT_PUSH_MEM,
    TT_PUSH_CHAR,
    TT_PUSH_INT,
    TT_PUSH_FLOAT,
} token_type_t;

typedef enum kw_type_e {
    // Include will be tokeniser level
    KW_NONE = 0,
    KW_FN,
    KW_DO,
    KW_END,
    KW_WITH,
    KW_RETURNS,
    KW_STRUCT,
    KW_ENUM,
    KW_IF,
    KW_ELSE,
    KW_WHILE,
    KW_CONST,
    KW_MEMORY,
    KW_COUNT__,
} kw_type_t;

typedef enum op_type_e {
    OP_NONE = 0,
    // Math
    OP_ADD,
    OP_SUB,
    OP_MUL,
    OP_DIV,
    OP_MOD,
    // Comparison
    OP_EQ,
    OP_GT,
    OP_LT,
    OP_GE,
    OP_LE,
    OP_NE,

    // Bit manipulation
    OP_SHR,
    OP_SHL,
    OP_OR,
    OP_AND,
    OP_NOT,

    // stack ops
    OP_DUP,
    OP_SWAP,
    OP_DROP,
    OP_OVER,
    OP_ROT,

    // memory
    // NOTE: Even if you load a 1 byte value into the stack,
    // it will still take up the full 8 bytes (or 4, if you're using a 32 bit system)
    OP_LOAD8,
    OP_STORE8,
    OP_LOAD16,
    OP_STORE16,
    OP_LOAD32,
    OP_STORE32,
    OP_LOAD64,
    OP_STORE64,

    // syscalls
    OP_SYSCALL0,
    OP_SYSCALL1,
    OP_SYSCALL2,
    OP_SYSCALL3,
    OP_SYSCALL4,
    OP_SYSCALL5,
    OP_SYSCALL6,

    // Builtins/Internals
    OP_ARGC,
    OP_ARGV,
    OP_CAST_PTR,
    OP_CAST_INT,
    OP_CAST_BOOL,
    OP_HERE,
    OP_PRINT,
    OP_COUNT__
} op_type_t;

typedef struct token_s {
    token_type_t type;
    loc_t loc;

    union {
        op_type_t op_type;
        kw_type_t kw_type;
        // NOTE: PUSH_CSTR and PUSH_STR will use the same data,
        // it will just output slightly different assembly
        const char* str_v;
        const char char_v;
        ssize_t int_v;
        // NOTE: For PUSH_MEM. It will push the offset of the memory,
        // that is assigned for that specific memory, from the `memory` label.
        size_t offset_v;
        double float_v;
    };
} token_t;



extern const char* OP_LIST[];
extern const char* KW_LIST[];
#endif // _H_MORPH_TOKEN