#!/usr/bin/env bash
# gitea skill — ver detalle de un PR.
#
# Uso:
#   pr-view.sh <owner>/<repo> <number>
#   pr-view.sh <repo> <number>           # usa GITEA_DEFAULT_OWNER

set -euo pipefail

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

if [[ $# -lt 2 ]]; then
  cat >&2 <<EOF
Uso: pr-view.sh <owner>/<repo> <number>
     pr-view.sh <repo> <number>

Ejemplos:
  pr-view.sh NucleOS/nucleo-infra 14
  pr-view.sh nucleo-infra 14
EOF
  exit 2
fi

repo_arg="$1"
number="$2"

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/${number}")"

# Si no es JSON-object o tiene error
if [[ "${resp:0:1}" != "{" ]]; then
  echo "ERROR: respuesta inesperada:" >&2
  echo "$resp" >&2
  exit 1
fi

echo "$resp" | PYTHONIOENCODING=utf-8 python -c "
import json, sys
pr = json.load(sys.stdin)
if pr.get('message') and not pr.get('number'):
    print('ERROR:', pr.get('message'), file=sys.stderr); sys.exit(1)
n = pr.get('number')
title = pr.get('title','')
state = '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','?')
created = (pr.get('created_at') or '')[:19].replace('T',' ')
updated = (pr.get('updated_at') or '')[:19].replace('T',' ')
merged_at = (pr.get('merged_at') or '')[:19].replace('T',' ')
mergeable = pr.get('mergeable')
url = pr.get('html_url')

print(f'#{n} {title}')
print(f'  state:    {state} (mergeable={mergeable})')
print(f'  branch:   {head} → {base}')
print(f'  author:   {user}')
print(f'  created:  {created}')
print(f'  updated:  {updated}')
if merged_at: print(f'  merged:   {merged_at}')
print(f'  url:      {url}')
print()
body = (pr.get('body') or '').strip()
if body:
    print('--- body ---')
    # Truncar si es muy largo
    if len(body) > 4000:
        body = body[:4000] + '\n[...truncado, total {} chars]'.format(len(pr.get('body','')))
    print(body)
"