#!/bin/sh
# Sends a file (e.g. a freshly built APK) to a Telegram chat via a bot.
# Usage: scripts/notify_telegram.sh <path-to-file> ["optional caption"]
#
# Reads TELEGRAM_BOT_TOKEN and TELEGRAM_CHAT_ID from .telegram.env
# (gitignored) at the repo root, or from the environment if already set.

set -eu

SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
REPO_ROOT=$(cd "$SCRIPT_DIR/.." && pwd)
ENV_FILE="$REPO_ROOT/.telegram.env"

if [ -f "$ENV_FILE" ]; then
    # shellcheck disable=SC1090
    . "$ENV_FILE"
fi

if [ -z "${TELEGRAM_BOT_TOKEN:-}" ] || [ -z "${TELEGRAM_CHAT_ID:-}" ]; then
    echo "TELEGRAM_BOT_TOKEN / TELEGRAM_CHAT_ID not set (checked $ENV_FILE and environment)." >&2
    exit 1
fi

FILE_PATH="${1:?Usage: notify_telegram.sh <path-to-file> [caption]}"
CAPTION="${2:-$(basename "$FILE_PATH")}"

if [ ! -f "$FILE_PATH" ]; then
    echo "File not found: $FILE_PATH" >&2
    exit 1
fi

curl -sS -F "chat_id=${TELEGRAM_CHAT_ID}" \
    -F "document=@${FILE_PATH}" \
    -F "caption=${CAPTION}" \
    "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendDocument" \
    | tee /dev/stderr \
    | grep -q '"ok":true'