linux - How can I remove and replace specific field value by name instead of fix column -

i want replace , remove substring text file line line. info want change under specific field. example, have following text:

{name:x, version:1.0, info:"test", ...} {name:y, version:0.1, info:"test again", ...} {name:z, version:1.1, info:"test over", ...} {name:x, info: "test", ..., version:1.2, ...} 

the field in random order. want remove version value , replace info value specific string, "foo".

the expect result:

{name:x, info:"foo", ...} {name:y, info:"foo", ...} {name:z, info:"foo", ...} {name:x, info:"foo", ...} 

is there smart way shell script? have no idea how replace substring above?

i know stupid command as

sed 's/info:\([^,}]*\)/info:\"foo\"/' file sed 's/version:\([^,}]*\)//' file 

sed 's/\(version:[^,}]*,\)*\(.*\)info:[^,}]*\(,\{0,1}\)\(.*\)\(, *version:[^,}]*,\)*/\2info:"foo"\3\4/' file 

(not tested) should trick (--posix gnu sed)