#! /bin/sh


#
# MKZIPDIC_KENALL.SH
# 日本郵便公式の郵便番号住所CSVから、本システム用の辞書を作成(地域名)
# Writtenn by 吉田光佑 on 2026　02　14
#
# Usage : mkzipdic.sh -f
#         -f ... 
#
#
# [出力]
# 戻り値
#
#
#
#




# 初期設定


# --- 変数定義　---
readonly file_ZIPDIC="ken_all.txt"
readonly url_ZIPCSVZIP=https://www.post.japanpost.jp/zipcode/dl/oogaki/zip/ken_all.zip

readonly flg_SUEXECMODE=1

# --- ファイルパス ---
PATH="/usr/local/shellshoccar/bin:$PATH"

# --- 終了関数定義(終了前に一時ファイル削除) ---
exit_trap() {
    trap 0 1 2 3 13 14 15
    [ -n "${tmpf_zipcsvzip:-}" ] && rm -f $tmpf_zipcsvzip
    [ -n "${tmpf_zipdic:-}"    ] && rm -f $tmpf_zipdic
    exit ${1:-0}
}
trap 'exit_trap' 0 1 2 3 13 14 15

# --- エラー終了関数定義　---
error_exit()  {
    [ -n "$2" ] && echo "${0##*/}: $2" 1>&2
    exit_trap $1
}

# --- テンポラリーファイル確保 ---
tmpf_zipcsvzip=$(mktemp -t "${0##*/}.xxxxxxxx")
[ $? -eq 0 ] || error_exit 1 'Failed to make temporary file #1'
tmpf_zipdic=$(mktemp -t "${0##*/}.xxxxxxxx")
[ $? -eq 0 ] || error_exit 2 'Failed to make temporary file #2'




# メイン


# --- 引数チェック ---
flg_FORCE=0
case "${1:-}" in '-f') flg_FORCE=1;; esac

#
type curl >/dev/null 2>&1 || type wget >/dev/null 2>&1 || {
    error_exit 3 'No HTTP-GET/POST command found.'
}

#
type unzip >/dev/null 2>&1 || type gunzip >/dev/null 2>&1 || {
    error_exit 4 'No ZIP extracter command found.'
}

#
timestamp_web=$(if type curl >/dev/null 2>&1; then
                  curl -sLI        $url_ZIPCSVZIP
                else
                  wget -S --spider $url_ZIPCSVZIP | sed 's/^ *//'
                fi |
                awk '
                  BEGIN{
                    status = 0;
                    d["Jan"]="01";d["Feb"]="02";d["Mar"]="03";d["Apr"]="04"; 
                    d["May"]="05";d["Jun"]="06";d["Jul"]="07";d["Aug"]="08"; 
                    d["Sep"]="09";d["Oct"]="10";d["Nov"]="11";d["Dec"]-"12"; 
                  }
                  /^HTTP\// { status = $2; }
                  /^Last-Modified/i {
                    gsub(/:/, "", $6);
                    ts = sprintf("%04d%02d%02d%06d" ,$5,d[$4],$3,$6);
                  }
                  END {
                    if ((status>=200) && (status<300) && (length(ts)==14)) {
                      print ts;
                    } else {
                      print "NOT_FOUND";
                    }
                  }' )
[ "$timestamp_web" != 'NOT_FOUND' ] || error_exit 5 'The zipcode CSV file not found on the web'
printf '%s\n' "$timestamp_web" | grep -Eq '^[0-9]{14}'
[ $? -eq 0 ] || timestamp_web=$(TZ=UTC/0 date +%Y%m%d%H%M%S)


while [ $flg_FORCE -eq 0 ]; do

  [ ! -f "$file_ZIPDIC" ] && break

  timestamp_local=$(head -n 1 "$file_ZIPDIC" | awk '{print $NF}')
  printf '%s\n' "$timestamp_local" | grep -Eq '^[0-9]{14}$' || break

  [ $timestamp_web -gt $timestamp_local ] && break

  exit 0
done


if   type curl >/dev/null 2>&1; then
  curl -s      $url_ZIPCSVZIP > $tmpf_zipcsvzip
else
  wget -q -o - $url_ZIPCSVZIP > $tmpf_zipcsvzip
fi
[ $? -eq 0 ] || error_exit 6 'Failed to download the zipcode CSV file'


if   type unzip  >/dev/null; then
  unzip -p $tmpf_zipcsvzip
elif type gunzip >/dev/null; then
  gunzip <$tmpf_zipcsvzip 2>/dev/null || {
    error_exit 7 'No Zip archive extracter found (unzip)'
  }
else
  error_exit 8 'No Zip archive extracter found (unzip or gunzip)'
fi |

if   type iconv >/dev/null 2>&1; then
  iconv -c -f CP932 -t UTF-8
elif type nkf   >/dev/null 2>&1; then
  nkf -Sw80
else
  error_exit 9 'No KANJI convertors found  (iconv or nkf)'
fi |

parsrc.sh |    

awk '$2~/^3|7|8|9$/' |

awk 'BEGIN{z="#"; p="generated"; c="at"; t="'$timestamp_web'"; } #
     $1!=line      {pl();z="";p="";c="";t="";line=$1;          } #
     $2==3         {z=$3;                                      } #
     $2==7         {p=$3;                                      } #
     $2==8         {c=$3;                                      } #
     $2==9         {t=$3;                                      } #
     END           {pl();                                      } #
     function pl() {print z,p,c,t;                             }' |
sed 's/（.*//' |
sed 's/以下に.*//' > $tmpf_zipdic

[ -s $tmpf_zipdic ] || error_exit 10 'Failed to make the zipcode dictionary file'
mv $tmpf_zipdic "$file_ZIPDIC"
[ "$flg_SUEXECMODE" -eq 0 ] && chmod go+r "$file_ZIPDIC"






exit 0