#!/bin/bash
# bb-show — put a page in front of the human, taking turns with the other agents.
#
# Use this instead of:  open -a "Brave Browser" <url>
# That command goes straight to macOS, around the proxy, so the proxy cannot
# queue it. Two sessions doing it minutes apart is what throws the window back
# and forth. This one queues.
#
#   bb-show [--reload] <url> [owner] [purpose]
#
# ONE TAB PER JOB (Matt, 2026-10-23). The owner name is your job. The job owns
# one tab on one site until you run bb-close <owner>. Showing the same site again
# gives you that same tab back, AS IS: never reloaded, never a second copy.
#
# LOOK BEFORE YOU TOUCH. When the page was already open, bb-show prints what it
# shows right now (URL, title, text, filled fields) and whether the human is
# working in it. Read that before acting: he may already have filled the form,
# solved the captcha or hit send. Continue from there; never start over.
# Pass --reload only when a fresh copy is truly wanted. To look without showing
# anything, use bb-peek.
#
# When the task is done, close what you showed: bb-close <owner|url-substring>.
#
# Exit 0 shown · 1 error · 2 screen busy (say so and move on, do NOT force it)
#      4 the human is working in that tab: read what it shows, continue, do NOT reopen it
#      5 stop: you keep reopening this page. Ask the human in one line what is wrong.
set -u
API="${BROKER_URL:-http://127.0.0.1:9223}"
RELOAD=0
if [ "${1:-}" = "--reload" ]; then RELOAD=1; shift; fi
URL="${1:-}"; OWNER="${2:-${BROKER_OWNER:-$(basename "${CLAUDE_SESSION_ID:-agent}")}}"; WHY="${3:-}"
[ -z "$URL" ] && { echo "usage: bb-show [--reload] <url> [owner] [purpose]" >&2; exit 1; }

BODY=$(URL="$URL" OWNER="$OWNER" WHY="$WHY" RELOAD="$RELOAD" python3 -c '
import json,os
b={"url":os.environ["URL"],"owner":os.environ["OWNER"],"purpose":os.environ["WHY"] or None}
if os.environ["RELOAD"]=="1": b["reload"]=True
print(json.dumps(b))')

OUT=$(curl -sS -m 60 -w $'\n%{http_code}' -X POST "$API/show" \
        -H "Content-Type: application/json" -d "$BODY" 2>/dev/null)
CODE=$(printf '%s' "$OUT" | tail -1)
JSON=$(printf '%s' "$OUT" | sed '$d')

# Prints a page state the broker handed back: where it is, what it says, what is filled in.
page(){ JSON="$1" python3 -c '
import json,os,sys
try: d=json.loads(os.environ["JSON"])
except Exception: sys.exit(0)
p=d.get("page") or {}
if not p: sys.exit(0)
print("  now at: %s" % (p.get("url") or "?"))
print("  title:  %s" % (p.get("title") or ""))
print("  shows:  %s" % (p.get("text") or "(no text read)"))
for f in (p.get("fields") or [])[:12]: print("  filled: %s = %s" % (f.get("field"), f.get("value")))
h=p.get("human") or {}
if h.get("active"): print("  HUMAN IS WORKING IN IT: last input %ss ago" % h.get("last_input_seconds_ago"))
elif h.get("inputs"): print("  the human worked in it (last input %ss ago)" % h.get("last_input_seconds_ago"))
' 2>/dev/null || true; }

case "$CODE" in
  200) echo "shown: $URL"
       how=$(JSON="$JSON" python3 -c '
import json,os
try: d=json.loads(os.environ["JSON"])
except Exception: d={}
print("reloaded" if d.get("reloaded") else "moved" if d.get("moved") else "open" if d.get("already_open") else "new")' 2>/dev/null)
       case "$how" in
         reloaded) echo "already open: reloaded in place because --reload was passed" ;;
         moved)    echo "same job tab, moved to this page (no second copy opened)" ;;
         open)     echo "already open: brought forward AS IS, NOT reloaded (no duplicate opened)"
                   page "$JSON"
                   echo "LOOK at that before acting: the human may already have filled, submitted or finished this page." ;;
       esac
       echo "when the task is done, close it: bb-close $OWNER   (rule: close every tab you opened)"
       exit 0 ;;
  409) echo "screen busy — $JSON" >&2
       echo "not forcing it. tell the human the link instead: $URL" >&2; exit 2 ;;
  423) echo "the human is working in that tab right now. Not reloaded, not reopened." >&2
       page "$JSON" >&2
       echo "read what it shows and continue from there. Do not start over." >&2; exit 4 ;;
  429) JSON="$JSON" python3 -c 'import json,os; print(json.loads(os.environ["JSON"]).get("error",""))' >&2 2>/dev/null \
         || echo "stop: you keep reopening this page" >&2
       exit 5 ;;
  4??) echo "broker refused (code=$CODE): $JSON" >&2; exit 1 ;;
  *)   # Broker down. Nothing should break just because the polite path is gone.
       echo "broker not answering (code=${CODE:-none}) — falling back to a raw open" >&2
       open -a "${BROWSER_APP:-Brave Browser}" "$URL" && exit 0 || exit 1 ;;
esac