#!/usr/bin/env bash
#
# Build the self-hosted single-file HTTP Toolkit binary.
#
# Requires: node (>=22), npm, bun, tar. Runs per-OS in CI (native modules can't
# be cross-compiled), so this builds for the *host* platform.
#
# Env:
#   OUT_NAME    output binary basename (default: httptoolkit)
#   BUN_TARGET  optional bun --target (default: host); e.g. bun-linux-x64
#
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

OUT_NAME="${OUT_NAME:-httptoolkit}"
BUN_TARGET="${BUN_TARGET:-}"

# The UI's postinstall pulls Puppeteer's Chromium (only needed for its own
# integration tests) - skip it, it's large and irrelevant to the build.
export PUPPETEER_SKIP_DOWNLOAD=true
export PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true

EXT=""
case "${BUN_TARGET}" in *windows*) EXT=".exe";; esac
if [ -z "$BUN_TARGET" ] && [ "${OS:-}" = "Windows_NT" ]; then EXT=".exe"; fi

echo "==> 1/5 Apply patches + overlay"
bash scripts/apply.sh

echo "==> 2/5 Build UI -> httptoolkit-ui/dist"
( cd httptoolkit-ui && npm ci && npm run build )

echo "==> 3/5 Install server deps (+ tar for the entry) & embed the UI"
( cd httptoolkit-server \
    && npm ci \
    && npm install --no-save tar@^7 \
    && tar -czf ui.tar.gz -C ../httptoolkit-ui/dist . \
    && rm -rf ui && cp -r ../httptoolkit-ui/dist ui )

echo "==> 4/5 Compile single-file binary with Bun"
mkdir -p dist
COMPILE=(build ./htk-entry.ts --compile --outfile "$ROOT/dist/${OUT_NAME}${EXT}")
if [ -n "$BUN_TARGET" ]; then COMPILE+=(--target "$BUN_TARGET"); fi
( cd httptoolkit-server && bun "${COMPILE[@]}" )

echo "==> 5/5 Done -> dist/${OUT_NAME}${EXT}"
ls -lh "dist/${OUT_NAME}${EXT}"