#!/bin/sh
# AdCut CLI — same JSON as POST https://adcutapp.com/v1/cut
# Install: curl -sL https://adcutapp.com/adcut -o adcut && chmod +x adcut
# Usage:   ./adcut file.txt
#          ./adcut --json file.txt
#          cat file.txt | ./adcut
set -e

API="https://adcutapp.com/v1/cut"
if [ -n "$ADCUT_URL" ]; then
  API="$ADCUT_URL"
fi

JSON=0
FILE=""
for arg in "$@"; do
  case "$arg" in
    --json) JSON=1 ;;
    -h|--help)
      printf '%s\n' "AdCut — cut a script into 6s / 15s / 30s (hook / proof / CTA)"
      printf '%s\n' "Usage: adcut [--json] [file]"
      printf '%s\n' "  file or stdin → pretty-print cuts; --json prints the API body"
      printf '%s\n' "Install: curl -sL https://adcutapp.com/adcut -o adcut && chmod +x adcut"
      exit 0
      ;;
    -*)
      printf '%s\n' "unknown option: $arg" >&2
      exit 2
      ;;
    *) FILE="$arg" ;;
  esac
done

if [ -n "$FILE" ]; then
  SCRIPT=$(cat "$FILE")
else
  SCRIPT=$(cat)
fi

if [ -z "$SCRIPT" ]; then
  printf '%s\n' "adcut: empty script (pass a file or pipe stdin)" >&2
  exit 1
fi

escape_json() {
  if command -v python3 >/dev/null 2>&1; then
    python3 -c 'import json,sys; sys.stdout.write(json.dumps(sys.stdin.read()))'
  elif command -v python >/dev/null 2>&1; then
    python -c 'import json,sys; sys.stdout.write(json.dumps(sys.stdin.read()))'
  elif command -v jq >/dev/null 2>&1; then
    jq -Rs .
  else
    printf '"'
    printf '%s' "$SCRIPT" | sed -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/	/\\t/g'
    printf '"'
  fi
}

PAYLOAD=$(printf '%s' "$SCRIPT" | escape_json)
RESP=$(printf '{"script":%s}' "$PAYLOAD" | curl -sS -X POST "$API" -H 'content-type: application/json' --data-binary @-)

if [ "$JSON" -eq 1 ]; then
  printf '%s\n' "$RESP"
  exit 0
fi

if command -v python3 >/dev/null 2>&1; then
  printf '%s' "$RESP" | python3 -c '
import json,sys
d=json.load(sys.stdin)
if not d.get("ok"):
    sys.stderr.write((d.get("error") or json.dumps(d))+"\n")
    sys.exit(1)
if d.get("engine") or d.get("ms") is not None:
    print("engine %s  %sms" % (d.get("engine") or "?", d.get("ms")))
for key in ("6s","15s","30s"):
    c=d["cuts"][key]
    print("== %s  (~%ss, %s words) ==" % (key, c.get("est_seconds"), c.get("words")))
    print("HOOK  "+(c.get("hook") or ""))
    print("PROOF "+(c.get("proof") or ""))
    print("CTA   "+(c.get("cta") or ""))
    print("")
'
elif command -v jq >/dev/null 2>&1; then
  printf '%s' "$RESP" | jq -r '
    if .ok != true then ("error: "+(.error // "cut failed")) | halt_error(1) else empty end,
    (.cuts | to_entries[] | "== \(.key)  (~\(.value.est_seconds)s, \(.value.words) words) ==\nHOOK  \(.value.hook // "")\nPROOF \(.value.proof // "")\nCTA   \(.value.cta // "")\n")
  '
else
  printf '%s\n' "$RESP"
fi