#include "epoch.h"
#include <stdint.h>

#define u128 __uint128_t

typedef struct {
  uint16_t major;
} __Simple;

typedef struct {
  uint16_t major;
  uint16_t minor;
} __Rapid;

typedef struct {
  uint16_t major;
  uint16_t minor;
  uint16_t patch;
} __SemVer;

typedef struct {
  uint16_t major;
  uint16_t minor;
  uint16_t patch;
  uint16_t build;
} __Extended;

typedef enum {
  Simple,
  Rapid,
  SemVer,
  Extended,
} VersionKindTag;

typedef struct {
  char hash[7];
  DateTime dt;
} GitRevision;

typedef enum {
  Alpha,
  Beta,
  ReleaseCandidate,
  GitRev,
  PRNone,
} PreReleaseTag;

typedef enum {
  any,
  arm,
  arm64,
  loongson,
  mips32,
  mips64,
  powerepc,
  powerpc64,
  riscv64,
  s390x,
  sparc,
  sparc64,
  x86,
  x86_64,
} Arch;

typedef struct {
  VersionKindTag vk_tag;
  union {
    __Simple simple;
    __Rapid rapid;
    __SemVer semver;
    __Extended extended;
  } vk_data;
  PreReleaseTag pr_tag;
  union {
    uint16_t alpha;
    uint16_t beta;
    uint16_t rc;
    GitRevision *git;
  } pr_data;
  Arch arch;
} Version;

typedef enum {
  CompGreater,
  CompEqual,
  CompLess,
  CompNone,
} Comparison;

u128 u128FromVersion(Version *self);
Comparison compareVersion(Version *self, Version *other);
int parseVersion(Version *self, const char *s);
char *versionToString(Version *self);