shrub/pkg/arvo/ted/claz/prep-command.hoon

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:: claz/pre-command: sanity-check command and gather prerequisites
::
/- *claz
/+ *claz, ethio, strandio
=, ethereum-types
=, able:jael
::
|= args=vase
=+ ^- [url=@t =command]
!<([@t command] args)
=/ m (strand:strandio ,vase)
^- form:m
?. ?=(%generate -.command) !! ::TODO
|^ ;< err=(unit tang) bind:m
:: sanity-check command
::
?+ -.batch.command (pure:(strand:strandio (unit tang)) ~)
%invites (check-invites +.batch.command)
==
?^ err (strand-fail:strandio %claz-pre-command u.err)
:: gather prerequisites
::
~& [%gonna-get-nonce url as.command]
;< nonce=@ud bind:m
(get-next-nonce:ethio url as.command)
~& [%got-nonce nonce]
(pure:m !>([%nonce nonce]))
::
++ check-invites
|= [as=ship file=path]
=/ m (strand:strandio ,(unit tang))
^- form:m
=/ friends=(list ship)
%+ turn
(read-invites file)
head
;< err=(unit tang) bind:m
(are-available friends)
?^ err (pure:m err)
(has-invites-for as friends)
::
++ are-available
|= ships=(list ship)
=/ m (strand:strandio ,(unit tang))
^- form:m
;< responses=(list [@t @t]) bind:m
%+ batch-read-contract-strict:ethio url
%+ turn ships
|= =ship
^- proto-read-request:rpc
:+ `(scot %p ship)
::TODO argument?
azimuth:contracts:azimuth
(rights:cal ship)
=/ taken=(list ship)
%+ murn responses
|= [id=@t res=@t]
^- (unit ship)
=/ rights=[owner=address *]
%+ decode-results:rpc res
::NOTE using +reap nest-fails
[%address %address %address %address %address ~]
?: =(0x0 owner.rights) ~
`(slav %p id)
%- pure:m
?: =(~ taken) ~
:- ~
:~ leaf+"some ships already taken:"
>taken<
==
::
++ has-invites-for
|= [as=ship ships=(list ship)]
=/ m (strand:strandio ,(unit tang))
^- form:m
=/ counts=(map ship @ud)
%+ roll ships
|= [s=ship counts=(map ship @ud)]
=+ p=(^sein:title s)
%+ ~(put by counts) p
+((~(gut by counts) p 0))
;< pool=@ud bind:m
=/ n (strand:strandio ,@ud)
;< res=@t bind:n
%+ read-contract:ethio url
:+ `'pool'
::TODO pass in as argument
delegated-sending:contracts:azimuth
(get-pool:cal as)
%- pure:n
(decode-results:rpc res [%uint]~)
;< responses=(list [id=@t res=@t]) bind:m
%+ batch-read-contract-strict:ethio url
%+ turn ~(tap by counts)
|= [=ship @ud]
^- proto-read-request:rpc
:+ `(scot %p ship)
::TODO pass in as argument
delegated-sending:contracts:azimuth
(pools:cal pool ship)
=/ missing=(list [star=ship have=@ud needed=@ud])
%+ murn responses
|= [id=@t res=@t]
^- (unit [ship @ud @ud])
=/ =ship
(slav %p id)
=/ pool-size=@ud
(decode-results:rpc res [%uint]~)
=/ need=@ud
(~(got by counts) ship)
?: (gte pool-size need) ~
`[ship pool-size need]
?: =(~ missing)
(pure:m ~)
%+ strand-fail:strandio %lacking-invites
:~ leaf+"not enough invites from stars:"
>missing<
==
--