/*
 * LibSylph -- E-Mail client library
 * Copyright (C) 1999-2017 Hiroyuki Yamamoto
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef __UTILS_H__
#define __UTILS_H__

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <dirent.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#if HAVE_ALLOCA_H
#include <alloca.h>
#endif

/* Wrappers for C library function that take pathname arguments. */
#if GLIB_CHECK_VERSION(2, 6, 0)
#include <glib/gstdio.h>
#else

#define g_open open
#define g_rename rename
#define g_mkdir mkdir
#define g_stat stat
#define g_lstat lstat
#define g_unlink unlink
#define g_remove remove
#define g_rmdir rmdir
#define g_fopen fopen
#define g_freopen freopen

#endif /* GLIB_CHECK_VERSION */

#if !GLIB_CHECK_VERSION(2, 7, 0)

#ifdef G_OS_UNIX
#define g_chdir chdir
#define g_chmod chmod
#else
gint g_chdir(const gchar *path);
gint g_chmod(const gchar *path, gint mode);
#endif /* G_OS_UNIX */

#endif /* !GLIB_CHECK_VERSION */

#ifdef G_OS_UNIX
#define syl_link link
#else
gint syl_link(const gchar *src, const gchar *dest);
#endif

/* The AC_CHECK_SIZEOF() in configure fails for some machines.
 * we provide some fallback values here */
#if !SIZEOF_UNSIGNED_SHORT
#undef SIZEOF_UNSIGNED_SHORT
#define SIZEOF_UNSIGNED_SHORT 2
#endif
#if !SIZEOF_UNSIGNED_INT
#undef SIZEOF_UNSIGNED_INT
#define SIZEOF_UNSIGNED_INT 4
#endif
#if !SIZEOF_UNSIGNED_LONG
#undef SIZEOF_UNSIGNED_LONG
#define SIZEOF_UNSIGNED_LONG 4
#endif

#ifndef HAVE_U32_TYPEDEF
#undef u32 /* maybe there is a macro with this name */
typedef guint32 u32;
#define HAVE_U32_TYPEDEF
#endif

#if defined(G_OS_WIN32) && !defined(_WIN64) && defined(HAVE_64BIT_TIME_T)
/* for backward binary compatibility. Use only in struct definition and
   pointer arguments. */
typedef gint32 stime_t;
#else
typedef time_t stime_t;
#endif

#if !GLIB_CHECK_VERSION(2, 26, 0)
#if (defined(_MSC_VER) || defined(__MINGW32__)) && !defined(_WIN64)
typedef struct _stat32 GStatBuf;
#else
typedef struct stat GStatBuf;
#endif
#endif

#ifndef BIG_ENDIAN_HOST
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
#define BIG_ENDIAN_HOST 1
#endif
#endif

#define CHDIR_RETURN_IF_FAIL(dir) \
    { \
        if (change_dir(dir) < 0) \
            return; \
    }

#define CHDIR_RETURN_VAL_IF_FAIL(dir, val) \
    { \
        if (change_dir(dir) < 0) \
            return val; \
    }

#define Xalloca(ptr, size, iffail) \
    { \
        if ((ptr = alloca(size)) == NULL) { \
            g_warning("can't allocate memory\n"); \
            iffail; \
        } \
    }

#define Xstrdup_a(ptr, str, iffail) \
    { \
        gchar *__tmp = NULL; \
\
        if ((__tmp = alloca(strlen(str) + 1)) == NULL) { \
            g_warning("can't allocate memory\n"); \
            iffail; \
        } else \
            strcpy(__tmp, str); \
\
        ptr = __tmp; \
    }

#define Xstrndup_a(ptr, str, len, iffail) \
    { \
        gchar *__tmp; \
\
        if ((__tmp = alloca(len + 1)) == NULL) { \
            g_warning("can't allocate memory\n"); \
            iffail; \
        } else { \
            strncpy(__tmp, str, len); \
            __tmp[len] = '\0'; \
        } \
\
        ptr = __tmp; \
    }

#define Xstrcat_a(ptr, str1, str2, iffail) \
    { \
        gchar *__tmp; \
        gint len1, len2; \
\
        len1 = strlen(str1); \
        len2 = strlen(str2); \
        if ((__tmp = alloca(len1 + len2 + 1)) == NULL) { \
            g_warning("can't allocate memory\n"); \
            iffail; \
        } else { \
            memcpy(__tmp, str1, len1); \
            memcpy(__tmp + len1, str2, len2 + 1); \
        } \
\
        ptr = __tmp; \
    }

#define AUTORELEASE_STR(str, iffail) \
    { \
        gchar *__str; \
        Xstrdup_a(__str, str, iffail); \
        g_free(str); \
        str = __str; \
    }

#define FILE_OP_ERROR(file, func) \
    { \
        fprintf(stderr, "%s: ", file); \
        fflush(stderr); \
        perror(func); \
    }

typedef void (*UIUpdateFunc)(void);
typedef void (*EventLoopFunc)(void);
typedef void (*ProgressFunc)(gint cur, gint total);
typedef gchar *(*QueryPasswordFunc)(const gchar *server, const gchar *user);
typedef void (*LogFunc)(const gchar *str);
typedef void (*LogFlushFunc)(void);

extern LogFunc log_print_qt_func;

/* for macro expansion */
#define Str(x) #x
#define Xstr(x) Str(x)

#define MSG_LEN 36
#define MSG_LEN_MIN 128
#define MSG_LEN_MAX 1024

void list_free_strings(GList *list);
void slist_free_strings(GSList *list);

void hash_free_strings(GHashTable *table);
void hash_free_value_mem(GHashTable *table);

gint str_case_equal(gconstpointer v, gconstpointer v2);
guint str_case_hash(gconstpointer key);

void ptr_array_free_strings(GPtrArray *array);

typedef gboolean (*StrFindFunc)(const gchar *haystack, const gchar *needle);

gboolean str_find(const gchar *haystack, const gchar *needle);
gboolean str_case_find(const gchar *haystack, const gchar *needle);
gboolean str_find_equal(const gchar *haystack, const gchar *needle);
gboolean str_case_find_equal(const gchar *haystack, const gchar *needle);

/* number-string conversion */
gint to_number(const gchar *nstr);
guint to_unumber(const gchar *nstr);
gchar *itos_buf(gchar *nstr, gint n);
gchar *itos(gint n);
gchar *utos_buf(gchar *nstr, guint n);
gchar *to_human_readable_buf(gchar *buf, size_t bufsize, gint64 size);
gchar *to_human_readable(gint64 size);

/* alternative string functions */

gint strcmp2(const gchar *s1, const gchar *s2);
gint path_cmp(const gchar *s1, const gchar *s2);
gboolean is_path_parent(const gchar *parent, const gchar *child);

gchar *strretchomp(gchar *str);
gchar *strtailchomp(gchar *str, gchar tail_char);
gchar *strcrchomp(gchar *str);

#ifdef __cplusplus
extern "C++" {
#endif

const gchar *strcasestr(const gchar *haystack,
                        const gchar *needle);

#ifdef __cplusplus
}
#endif

gpointer my_memmem(gconstpointer haystack, size_t haystacklen, gconstpointer needle,
                   size_t needlelen);

gchar *strncpy2(gchar *dest, const gchar *src, size_t n);

gboolean str_has_suffix_case(const gchar *str, const gchar *suffix);

gint str_find_format_times(const gchar *haystack, gchar ch);

gboolean is_next_nonascii(const gchar *s);
gint get_next_word_len(const gchar *s);

/* functions for string parsing */
gint subject_compare(const gchar *s1, const gchar *s2);
gint subject_compare_for_sort(const gchar *s1, const gchar *s2);
void trim_subject_for_compare(gchar *str);
void trim_subject_for_sort(gchar *str);
void trim_subject(gchar *str);
void eliminate_parenthesis(gchar *str, gchar op, gchar cl);
void extract_parenthesis(gchar *str, gchar op, gchar cl);
void extract_parenthesis_with_escape(gchar *str, gchar op, gchar cl);

void extract_parenthesis_with_skip_quote(gchar *str, gchar quote_chr, gchar op, gchar cl);

void eliminate_quote(gchar *str, gchar quote_chr);
void extract_quote(gchar *str, gchar quote_chr);
void extract_quote_with_escape(gchar *str, gchar quote_chr);
void eliminate_address_comment(gchar *str);
gchar *strchr_with_skip_quote(const gchar *str, gint quote_chr, gint c);
gchar *strrchr_with_skip_quote(const gchar *str, gint quote_chr, gint c);
void extract_address(gchar *str);
void extract_list_id_str(gchar *str);

gchar *extract_addresses(const gchar *str);

gchar *normalize_address_field(const gchar *str);

gboolean address_equal(const gchar *addr1, const gchar *addr2);

GSList *address_list_append_orig(GSList *addr_list, const gchar *str);
GSList *address_list_append(GSList *addr_list, const gchar *str);
GSList *references_list_prepend(GSList *msgid_list, const gchar *str);
GSList *references_list_append(GSList *msgid_list, const gchar *str);
GSList *newsgroup_list_append(GSList *group_list, const gchar *str);

GList *add_history(GList *list, const gchar *str);

/* modify string */
void remove_return(gchar *str);
void remove_space(gchar *str);
void unfold_line(gchar *str);
void subst_char(gchar *str, gchar orig, gchar subst);
void subst_chars(gchar *str, gchar *orig, gchar subst);
void subst_null(gchar *str, gint len, gchar subst);
void subst_control(gchar *str, gchar subst);
void subst_for_filename(gchar *str);

gchar *get_alt_filename(const gchar *filename, gint count);

gboolean is_header_line(const gchar *str);
gboolean is_ascii_str(const gchar *str);

gint get_quote_level(const gchar *str);
gint check_line_length(const gchar *str, gint max_chars, gint *line);

gchar *strstr_with_skip_quote(const gchar *haystack, const gchar *needle);
gchar *strcasestr_with_skip_quote(const gchar *haystack, const gchar *needle);
gchar *strchr_parenthesis_close(const gchar *str, gchar op, gchar cl);

gchar **strsplit_parenthesis(const gchar *str, gchar op, gchar cl, gint max_tokens);
gchar **strsplit_with_quote(const gchar *str, const gchar *delim, gint max_tokens);
gchar **strsplit_csv(const gchar *str, gchar delim, gint max_tokens);

gchar *strconcat_csv(gchar delim, const gchar *field1, ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
gchar *strconcat_csv_arg(gchar delim, const gchar *field1, va_list args);

gchar *get_abbrev_newsgroup_name(const gchar *group, gint len);
gchar *trim_string(const gchar *str, gint len);
gchar *trim_string_before(const gchar *str, gint len);

GList *uri_list_extract_filenames(const gchar *uri_list);
gboolean is_uri_string(const gchar *str);
gchar *get_uri_path(const gchar *uri);
gint get_uri_len(const gchar *str);
void decode_uri(gchar *decoded_uri, const gchar *encoded_uri);
void decode_xdigit_encoded_str(gchar *decoded, const gchar *encoded);
gchar *encode_uri(const gchar *filename);
gchar *uriencode_for_filename(const gchar *filename);
gchar *uriencode_for_mailto(const gchar *mailto);
gint scan_mailto_url(const gchar *mailto, gchar **to, gchar **cc, gchar **bcc, gchar **subject,
                     gchar **inreplyto, gchar **body);

void set_startup_dir(void);
void set_rc_dir(const gchar *dir);

/* return static strings */
const gchar *get_startup_dir(void);
const gchar *get_home_dir(void);
const gchar *get_document_dir(void);
const gchar *get_rc_dir(void);
const gchar *get_old_rc_dir(void);
const gchar *get_mail_base_dir(void);
gchar *get_news_cache_dir(void);
gchar *get_imap_cache_dir(void);
gchar *get_pop_cache_dir(void);
gchar *get_mime_tmp_dir(void);
const gchar *get_template_dir(void);
gchar *get_tmp_dir(void);
gchar *get_tmp_file(void);
const gchar *get_domain_name(void);

/* file / directory handling */
off_t get_file_size(const gchar *file);
off_t get_file_size_as_crlf(const gchar *file);
off_t get_left_file_size(FILE *fp);

gint get_last_empty_line_size(FILE *fp, off_t size);

gboolean file_exist(const gchar *file, gboolean allow_fifo);
gboolean is_dir_exist(const gchar *dir);
gboolean is_file_entry_exist(const gchar *file);
gboolean dirent_is_regular_file(struct dirent *d);
gboolean dirent_is_directory(struct dirent *d);

#define is_file_exist(file) file_exist(file, FALSE)
#define is_file_or_fifo_exist(file) file_exist(file, TRUE)

gint change_dir(const gchar *dir);
gint make_dir(const gchar *dir);
gint make_dir_hier(const gchar *dir);
gint remove_all_files(const gchar *dir);
gint remove_numbered_files(const gchar *dir, guint first, guint last);
gint remove_all_numbered_files(const gchar *dir);
gint remove_expired_files(const gchar *dir, guint hours);
gint remove_dir_recursive(const gchar *dir);
gint rename_force(const gchar *oldpath, const gchar *newpath);
gint copy_file(const gchar *src, const gchar *dest, gboolean keep_backup);
gint copy_file_import(const gchar *src, const gchar *dest, const gchar *uosmessageid, gboolean keep_backup);
gint copy_dir(const gchar *src, const gchar *dest);
gint move_file(const gchar *src, const gchar *dest, gboolean overwrite);

gint append_file_part(FILE *fp, off_t offset, size_t length, FILE *dest_fp);
gint copy_file_part(FILE *fp, off_t offset, size_t length, const gchar *dest);

gint copy_file_stream(FILE *fp, FILE *dest_fp);

gchar *canonicalize_str(const gchar *str);
gint canonicalize_file(const gchar *src, const gchar *dest);
gint canonicalize_file_replace(const gchar *file);
FILE *canonicalize_file_stream(FILE *fp, gint *length);
gint uncanonicalize_file(const gchar *src, const gchar *dest);
gint uncanonicalize_file_replace(const gchar *file);

gchar *normalize_newlines(const gchar *str);
gchar *strchomp_all(const gchar *str);

FILE *get_outgoing_rfc2822_file(FILE *fp);
gchar *get_outgoing_rfc2822_str(FILE *fp);
gchar *generate_mime_boundary(const gchar *prefix);

gint change_file_mode_rw(FILE *fp, const gchar *file);
FILE *my_tmpfile(void);
FILE *str_open_as_stream(const gchar *str);
gint str_write_to_file(const gchar *str, const gchar *file);
gchar *file_read_to_str(const gchar *file);
gchar *file_read_stream_to_str(FILE *fp);

/* process execution */
gint execute_async(gchar *const argv[]);
gint execute_sync(gchar *const argv[]);
gint execute_command_line(const gchar *cmdline, gboolean async);
gint execute_command_line_async_wait(const gchar *cmdline);

gint execute_open_file(const gchar *file, const gchar *content_type);
gint execute_print_file(const gchar *file);
gchar *get_command_output(const gchar *cmdline);

/* open URI with external browser */
gint open_uri(const gchar *uri, const gchar *cmdline);

/* play sound */
gint play_sound(const gchar *file, gboolean async);

/* time functions */
stime_t remote_tzoffset_sec(const gchar *zone);
stime_t tzoffset_sec(stime_t *now);
gchar *tzoffset_buf(gchar *buf, stime_t *now);
gchar *tzoffset(stime_t *now);
void get_rfc822_date(gchar *buf, gint len);

size_t my_strftime(gchar *s, size_t max, const gchar *format, const struct tm *tm);

/* UI hints */
void set_ui_update_func(UIUpdateFunc func);
void ui_update(void);

void set_event_loop_func(EventLoopFunc func);
void event_loop_iterate(void);

void set_progress_func(ProgressFunc func);
void progress_show(gint cur, gint total);

/* user input */
void set_input_query_password_func(QueryPasswordFunc func);

gchar *input_query_password(const gchar *server, const gchar *user);

/* logging */
void set_log_file(const gchar *filename);
void close_log_file(void);
void set_log_verbosity(gboolean verbose);
gboolean get_debug_mode(void);
void set_debug_mode(gboolean enable);

void set_log_ui_func(LogFunc print_func, LogFunc message_func, LogFunc warning_func,
                     LogFunc error_func);
void set_log_ui_func_full(LogFunc print_func, LogFunc message_func, LogFunc warning_func,
                          LogFunc error_func, LogFlushFunc flush_func);

void set_log_show_status_func(LogFunc status_func);

void debug_print(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
void status_print(const gchar *format, ...) G_GNUC_PRINTF(1, 2);

void log_write(const gchar *str, const gchar *prefix);

void log_print(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
void log_message(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
void log_warning(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
void log_error(const gchar *format, ...) G_GNUC_PRINTF(1, 2);

void log_flush(void);
/**
 * @brief 从字符串的最后的 '\0' 算起字符串的长度
 * @param 要计算长度的字符串
 * @param 字符串锁申请的最大长度
 * @return 字符串的最大长度
 **/
unsigned long max_strlen(const char *buf, unsigned long max_size);

typedef int (*AesDecryptFunc)(const char *in, char *out, int do_encrypt, unsigned long len); //add shui

extern AesDecryptFunc aesdecrypt_func; //add shui

typedef int (*Base64DecryptFunc)(char *input, char *out, unsigned long length, int do_encrypt); //add shui

extern Base64DecryptFunc base64decrypt_func; //add shui

void set_log_print_qt_func(LogFunc func); //add shui
void set_aesdecrypt_func(AesDecryptFunc func); //add shui
void set_base64decrypt_func(Base64DecryptFunc func); //add shui
extern gboolean (*is_network_online)(void);
extern gboolean b_debugPrint;

#endif /* __UTILS_H__ */
