#!/usr/bin/env bash
# gitea skill — listar PRs de un repo.
#
# Uso:
#   pr-list.sh <owner>/<repo> [--state open|closed|all] [--limit N]
#
# Si pasás solo <repo>, usa GITEA_DEFAULT_OWNER del .env (NucleOS).
# Devuelve una tabla compacta. Para ver el JSON crudo, usá query.sh directamente.

set -euo pipefail

SKILL_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
QUERY="$SKILL_DIR/scripts/query.sh"

state="open"
limit=20
repo_arg=""

while [[ $# -gt 0 ]]; do
  case "$1" in
    --state) state="$2"; shift 2 ;;
    --limit) limit="$2"; shift 2 ;;
    -h|--help)
      cat <<EOF
Uso: pr-list.sh <owner>/<repo> [--state open|closed|all] [--limit N]

Ejemplos:
  pr-list.sh NucleOS/nucleo-infra
  pr-list.sh nucleo-infra --state closed --limit 5
EOF
      exit 0
      ;;
    -*) echo "ERROR: flag desconocida: $1" >&2; exit 2 ;;
    *)  repo_arg="$1"; shift ;;
  esac
done

if [[ -z "$repo_arg" ]]; then
  echo "ERROR: pasá <owner>/<repo> o solo <repo>." >&2
  exit 2
fi

# Resolver owner/repo
if [[ "$repo_arg" == */* ]]; then
  owner="${repo_arg%%/*}"
  repo="${repo_arg##*/}"
else
  set -a; source "$SKILL_DIR/.env"; set +a
  owner="${GITEA_DEFAULT_OWNER:?owner no especificado y GITEA_DEFAULT_OWNER vacío}"
  repo="$repo_arg"
fi

resp="$("$QUERY" "/repos/${owner}/${repo}/pulls?state=${state}&limit=${limit}")"

# Detectar errores (objeto, no array)
if [[ "${resp:0:1}" == "{" ]]; then
  echo "$resp" | PYTHONIOENCODING=utf-8 python -c "
import json, sys
d=json.load(sys.stdin)
print('ERROR:', d.get('message') or d.get('error') or d, file=sys.stderr)
" >&2
  exit 1
fi

echo "$resp" | PYTHONIOENCODING=utf-8 python -c "
import json, sys
prs = json.load(sys.stdin)
if not prs:
    print('(sin PRs en estado: $state)')
    sys.exit(0)
print(f'{len(prs)} PR(s) en $owner/$repo (state=$state):')
print()
for pr in prs:
    n = pr.get('number')
    title = (pr.get('title') or '').replace('\n', ' ')
    if len(title) > 70: title = title[:67] + '...'
    state_label = 'merged' if pr.get('merged') else pr.get('state','?')
    head = (pr.get('head') or {}).get('ref','?')
    base = (pr.get('base') or {}).get('ref','?')
    user = (pr.get('user') or {}).get('login','?')
    updated = (pr.get('updated_at') or '')[:10]
    print(f'  #{n:<4} [{state_label:<7}] {title}')
    print(f'         {user} | {head} → {base} | updated {updated}')
"