; =============================================================================
; File    : utils/wait_init.ttl
; Version : V2.0.0
; Date    : 2026-08-21
; Author  : ETWen
; =============================================================================
; Wait until BOTH switch units report more than WT_MIN ports up:
;     bcmcmd -n 0 -c ps | grep -w up | wc -l
;     bcmcmd -n 1 -c ps | grep -w up | wc -l
;
; Enter : prompt of the previous command is NOT consumed.
; Exit  : a command has been sent, prompt NOT consumed (caller does the wait).
;
; Why the "PORTS0=" marker instead of reading the number straight off the
; screen: TTL can only test for a string, so counting requires capturing the
; output. Wrapping the count in an echo gives waitregex a unique anchor, and
; the ECHO of the command itself cannot false-match -- it reads
; "PORTS0=$(bcmcmd ..." and the regex demands a digit right after the "=".
;
; Version History:
;   V1.0.0  2026-08-21  Initial Version (waited on "show platform temperature"
;                       until it stopped reporting "Thermal Not detected")
;   V2.0.0  2026-08-21  Wait on the bcmcmd port-up count of BOTH switch units
;                       instead of the thermal sensors; proceed only when both
;                       are greater than WT_MIN (216).
; =============================================================================
WT_MIN      = 216   ; both units must report MORE than this many ports up
WT_INTERVAL = 10    ; seconds between polls

timeout = 60        ; per-wait cap; bcmcmd ps is not instant
wait prompt_sonic_root

:WAIT_PORTS
; --- unit 0 -----------------------------------------------------------------
wt_up0 = 0
sendln "echo PORTS0=$(bcmcmd -n 0 -c ps | grep -w up | wc -l)"
waitregex "PORTS0=[ ]*([0-9]+)"
if result = 1 then
    str2int wt_up0 groupmatchstr1
endif
wait prompt_sonic_root

; --- unit 1 -----------------------------------------------------------------
wt_up1 = 0
sendln "echo PORTS1=$(bcmcmd -n 1 -c ps | grep -w up | wc -l)"
waitregex "PORTS1=[ ]*([0-9]+)"
if result = 1 then
    str2int wt_up1 groupmatchstr1
endif
wait prompt_sonic_root

; --- both above the threshold? ----------------------------------------------
; Nested ifs rather than "and": in TTL "and" is bitwise, so keeping the two
; comparisons separate leaves no room for precedence surprises.
if wt_up0 > WT_MIN then
    if wt_up1 > WT_MIN then
        goto PORTS_OK
    endif
endif

pause WT_INTERVAL
goto WAIT_PORTS

:PORTS_OK
timeout = 0
; Exit contract: send something without waiting, so the caller's next
; "wait prompt_sonic_root" has a prompt to match.
sendln ""