Create one (or more) oracle view

Hi,
I've this table TEST_BL:
BUILDING........FLOOR....COD_RIT......TYPE_S........AREA
00600569........P01................................O...................35,19
00600569........P01................................O...................1,91
00600569........P01................................O...................775,24
00600569........P01................................V...................223,36
00600569........P01................................V...................85,57
00600569........P01................................V...................49,86
00600569........P01................................V...................85,67
00600569........P01........05........................................25,28
00600569........P01........01........................................99,84
00600569........P01........01........................................760,94
00600569........P02................................O..................12,62
00600569........P02................................V...................212,03
00600569........P02................................V..................85,21
00600569........P02................................V..................49,44
00600569........P02........05........................................10,40
00600569........P02................................O..................326,94
00600569........P02................................V...................96,59
00600569........P02........01........................................96,23
00600569........P02........01........................................536,97
00600569........P03................................O...................50,49
00600569........P03................................V...................85,21
00600569........P03................................V...................14,87
00600569........P03........05........................................10,40
00600569........P03................................O.................539,00
00600569........P03................................V..................96,58
00600569........P03........07........................................96,82
00600569........P03........07.........................................259,26

I'd like to obtain this result:
00600569........01.......3730,28
00600569........05.......46,08
00600569........07.......945,57

The conditions in order to obtain this result are:

For TYPE_S=O I must group by FLOOR
For TYPE_S=V I must group by BUILDING

For P01
01 SUM_AREA=760,94+99,84=860,78
05 SUM_AREA=25,28 MAX AREA BY COD_RIT=01
For P02
01 SUM_AREA=536,97+96,23=633,2
05 SUM_AREA=10,40 MAX AREA BY COD_RIT=01
For P03
07 SUM_AREA=259,26+96,82=356,08
05 SUM_AREA=10,40 MAX AREA BY COD_RIT=07

Now, all TYPE_S=O must have the COD_RIT with greater area.
BUILDING........FLOOR....COD_RIT......TYPE_S........AREA
00600569........P01........01...........O...........35,19
00600569........P01........01...........O...........1,91
00600569........P01........01...........O...........775,24
00600569........P01.....................V...........223,36
00600569........P01.....................V...........85,57
00600569........P01.....................V...........49,86
00600569........P01.....................V...........85,67
00600569........P01........05.......................25,28
00600569........P01........01.......................99,84
00600569........P01........01.......................760,94
00600569........P02........01...........O...........12,62
00600569........P02.....................V...........212,03
00600569........P02.....................V...........85,21
00600569........P02.....................V...........49,44
00600569........P02........05.......................10,40
00600569........P02........01...........O...........326,94
00600569........P02.....................V...........96,59
00600569........P02........01.......................96,23
00600569........P02........01.......................536,97
00600569........P03........07...........O...........50,49
00600569........P03.....................V...........85,21
00600569........P03.....................V...........14,87
00600569........P03........05.......................10,40
00600569........P03........07...........O...........539,00
00600569........P03.....................V...........96,58
00600569........P03........07.......................96,82
00600569........P03........07.......................259,26

Sum area group by floor and cod_rit is:
00600569........P01........01.......................1673,12
00600569........P01.....................V...........223,36
00600569........P01.....................V...........85,57
00600569........P01.....................V...........49,86
00600569........P01.....................V...........85,67
00600569........P01........05.......................25,28
00600569........P02........01.......................972,77
00600569........P02.....................V...........212,03
00600569........P02.....................V...........85,21
00600569........P02.....................V...........49,44
00600569........P02........05.......................10,40
00600569........P02.....................V...........96,59
00600569........P03........07.......................945,57
00600569........P03.....................V...........85,21
00600569........P03.....................V...........14,87
00600569........P03........05.......................10,40
00600569........P03.....................V...........96,58

Now sum area by TYPE_S=V group by BUILDING:
00600569........01..............2645,89 (1673,12+972,77)
00600569................V.......1084,39 (444,46+443,27+196,66)
00600569........05..............46,08 (25,28+10,40+10,40)
00600569........07..............945,57

Finally, for TYPE_S=V it must include in the COD_RIT with greater area (in this case 01)
00600569........01..............3730,28
00600569........05..............46,08
00600569........07..............945,57


it is possible to create one (or more) view oracle
to obtain this result, starting from my table TEST_BL??

thanks in advance!!!