#!/usr/bin/env bash
# ===============================================================================================================
# telegram-pipeline-notify.sh - Notificaciones enriquecidas de Telegram para pipelines de Bitbucket
# Descripción:
#       Envía alertas detalladas a Telegram incluyendo branch, commit, build number,
#       autor y estado del despliegue. Requiere TELEGRAM_BOT_TOKEN y TELEGRAM_CHAT_ID.
#
# Uso:
#       bash scripts/telegram-pipeline-notify.sh <start|success|failure> [mensaje_extra]
#
# Autor: Área de Tecnología y Desarrollo - CCsoft
# ===============================================================================================================

set -euo pipefail

NOTIFY_TYPE="${1:-}"
EXTRA_MESSAGE="${2:-}"

TELEGRAM_BOT_TOKEN="${TELEGRAM_BOT_TOKEN:-${DEV_TELEGRAM_BOT_TOKEN:-${PROD_TELEGRAM_BOT_TOKEN:-}}}"
TELEGRAM_CHAT_ID="${TELEGRAM_CHAT_ID:-${DEV_TELEGRAM_CHAT_ID:-${PROD_TELEGRAM_CHAT_ID:-}}}"

if [[ -z "$TELEGRAM_BOT_TOKEN" ]]; then
    echo "[WARN] TELEGRAM_BOT_TOKEN no definido. Saltando notificación." >&2
    exit 0
fi

if [[ -z "$TELEGRAM_CHAT_ID" ]]; then
    echo "[WARN] TELEGRAM_CHAT_ID no definido. Saltando notificación." >&2
    exit 0
fi

if [[ -z "$NOTIFY_TYPE" ]]; then
    echo "[ERROR] Debe proporcionar el tipo de notificación: start, success o failure" >&2
    exit 1
fi

# -------------------------------------------------------------------------------
# Variables de contexto del pipeline
# -------------------------------------------------------------------------------
BRANCH="${BITBUCKET_BRANCH:-unknown}"
COMMIT="${BITBUCKET_COMMIT:-unknown}"
BUILD_NUMBER="${BITBUCKET_BUILD_NUMBER:-unknown}"
REPO="${BITBUCKET_REPO_SLUG:-proyectosacc}"
WORKSPACE="${BITBUCKET_WORKSPACE:-ccsoft1}"
AUTHOR="${BITBUCKET_STEP_TRIGGERER_UUID:-desconocido}"

# Truncar commit a 7 caracteres si es largo
if [[ "${#COMMIT}" -gt 7 ]]; then
    COMMIT_SHORT="${COMMIT:0:7}"
else
    COMMIT_SHORT="$COMMIT"
fi

# Timestamp actual
TIMESTAMP="$(date '+%Y-%m-%d %H:%M:%S %Z')"

# -------------------------------------------------------------------------------
# Armar mensaje según tipo
# -------------------------------------------------------------------------------
case "$NOTIFY_TYPE" in
    start)
        EMOJI="🚀"
        STATUS="INICIANDO"
        ;;
    success)
        EMOJI="✅"
        STATUS="COMPLETADO EXITOSAMENTE"
        ;;
    failure)
        EMOJI="❌"
        STATUS="FALLÓ"
        ;;
    *)
        EMOJI="ℹ️"
        STATUS="$NOTIFY_TYPE"
        ;;
esac

MESSAGE=$(cat <<EOF
${EMOJI} Pipeline *${REPO}* ${STATUS}

*Branch:* \`${BRANCH}\`
*Commit:* \`${COMMIT_SHORT}\`
*Build:* #${BUILD_NUMBER}
*Autor:* ${AUTHOR}
*Hora:* ${TIMESTAMP}
EOF
)

if [[ -n "$EXTRA_MESSAGE" ]]; then
    MESSAGE="${MESSAGE}
*Detalle:* ${EXTRA_MESSAGE}"
fi

# -------------------------------------------------------------------------------
# Enviar mensaje
# -------------------------------------------------------------------------------
RESPONSE=$(curl -s -X POST "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \
    -d "chat_id=${TELEGRAM_CHAT_ID}" \
    --data-urlencode "text=${MESSAGE}" \
    -d "parse_mode=MarkdownV2")

if echo "$RESPONSE" | grep -q '"ok":true'; then
    echo "[INFO] Notificación enviada a Telegram"
else
    echo "[WARN] Error enviando notificación: $RESPONSE" >&2
    # No fallamos el pipeline por un error de notificación
    exit 0
fi