initialSize = 2 # 首屏展示條數(shù)
eachSize = 5    # 剩余頁展示條數(shù)

local_pages = []  # 本地分頁數(shù)據(jù)

def makePage(d):
    '''
    制作分頁數(shù)據(jù)
    '''
    local_pages.clear()
    if calcSize(d) > initialSize: # 總條數(shù)大于首屏數(shù)，使用本地分頁
        sublist = []
        for item in d:
            for child in item["child"]:
                sublist.append(child)
        
        firstPageSize = min(len(sublist), initialSize) # 第一頁的大小

        local_pages.append(sublist[0:firstPageSize]) # 取第一頁的集合

        remain_size = len(sublist)-firstPageSize # 剩余條數(shù)

        group_count = int(remain_size / eachSize) # 計算分頁數(shù)

        last_count = remain_size % eachSize # 取余，最后剩余多少條

        idx = 0
        for idx in range(group_count):
            start = firstPageSize + idx * eachSize
            end = start + eachSize
            local_pages.append(sublist[start:end]) # 新增頁集合

        if last_count > 0:
            local_pages.append(sublist[-last_count:]) # 余數(shù)不為0，將作為最后一頁集合
    
    pass
                

def calcSize(d)->int:
    '''
    計算總條數(shù)
    '''
    size = 0
    for item in d:
        size += len(item["child"]) + 1
    return size

def printPage():
    '''
    打印頁面
    '''
    idx = 0
    for p in local_pages:
        idx += 1
        print("page:{}".format(idx))
        for item in p:
            print(item)


data = [{"id":"1",
         "name":"parent_1",
         "child":[
             {"id":"1_1",
              "name":"RS234326348264",
              "parent_id":"1"
              },
             {"id":"1_2",
              "name":"RS234326348264",
              "parent_id":"1"
              },
             {"id":"1_3",
              "name":"RS234326348264",
              "parent_id":"1"
              },
             {"id":"1_4",
              "name":"RS234326348264",
              "parent_id":"1"
              },
              {"id":"1_5",
              "name":"RS234326348264",
              "parent_id":"1"
              },
              {"id":"1_6",
              "name":"RS234326348264",
              "parent_id":"1"
              },
              {"id":"1_7",
              "name":"RS234326348264",
              "parent_id":"1"
              },
              {"id":"1_8",
              "name":"RS234326348264",
              "parent_id":"1"
              },
              {"id":"1_9",
              "name":"RS234326348264",
              "parent_id":"1"
              }]},

        {"id":"2",
         "name":"parent_2",
         "child":[
              {"id":"2_1",
              "name":"RS234326348264",
              "parent_id":"2"
              }]}]

print(f"首屏展示條數(shù):{initialSize}")
print(f"剩余頁展示條數(shù):{eachSize}")
makePage(data)
printPage()