import requests
import sys
import json

#-------------------------------------------------------------------------------
def showRequestStatus(sHead, iCode, sUri, iOffset):
    print(f"{sHead}: status_code=[{iCode}] for [{sUri}] in offset=[{iOffset}]")


#-------------------------------------------------------------------------------
def getAllIssues(sUri, dHeaders, dParams):
    iTotalCount = dParams['limit'] # 全チケット(Issue)数初期値はlimitとする
    dIssues     = None             # 戻り値初期設定
    
  # iTotalCountがoffsetより大きい場合HTTPリクエストを繰り返す
    while iTotalCount > dParams['offset']:
      # HTTPリクエスト
        jIssues = requests.get(sUri, headers=dHeaders, params=dParams)
      # HTTPリクエストステータス確認
        if jIssues.status_code == 200:
            showRequestStatus('INF', jIssues.status_code, sUri, dParams['offset'])
          # 取得データを辞書に変更して追加
            dIssuesCur = jIssues.json()
            if dIssues is None:
                dIssues = dIssuesCur
            else:
                dIssues['issues'] += dIssuesCur['issues']
          # 全チケット数を取得
            iTotalCount = dIssues['total_count'] # 1回目レスポンスで正確なチケット数に
          # offsetのインクリメント
            dParams['offset'] += dParams['limit']
        else:
            showRequestStatus('ERR', jIssues.status_code, sUri, dParams['offset'])
            break
  
  # 取得終了後dIssuesを戻す
    return dIssues


#===============================================================================
def main():
  # getメソッド引数にパラメータ設定を追加する
    sUri     = 'http://localhost:3000/issues.json'
    dHeaders = {'X-Redmine-API-Key': '8dc1f63aうんぬんかんぬん'}
    dParams  = {'offset': 0, 'limit': 25}
    
  # 全Issueリスト取得
    dIssues = getAllIssues(sUri, dHeaders, dParams)
    
  # Issueリスト表示
    if dIssues is None:
        return 1
    
    for dIssue in dIssues['issues']:
        iId      = dIssue['id']
        sSubject = dIssue['subject']
        sStatus  = dIssue['status']['name']
        print(f"INF: id=[{iId}],\tsubject=[{sSubject}],\tstatus=[{sStatus}]")
    
  # 終了コード
    return 0


#===============================================================================
if main() == 0:
    print("INF: normally finished")
else:
    print("INF: some errors occured")
#===============================================================================