#!/usr/bin/env bash
set -euo pipefail

REPO="MDietermann/Archduino"
BASE_URL="${ARCHDUINO_RELEASE_BASE:-https://gitlab.hive-brain.de}"
API_URL="${BASE_URL}/api/v1"

err() { echo "bootstrap: error: $*" >&2; exit 1; }
msg() { echo "==> $*"; }

# Arch gate
[ -f /etc/arch-release ] || err "Archduino v1 supports Arch Linux only."

# Arch detect
case "$(uname -m)" in
  x86_64)  ARCH="amd64" ;;
  aarch64) ARCH="arm64" ;;
  *)       err "unsupported architecture: $(uname -m)" ;;
esac

# Prereqs
msg "Installing prerequisites (sudo, git, curl, ca-certificates)"
sudo pacman -Sy --needed --noconfirm sudo git curl ca-certificates

# Discover latest release
msg "Querying latest release from Gitea"
API_ENDPOINT="${API_URL}/repos/${REPO}/releases/latest"
RELEASE_JSON=$(curl -fsSL "$API_ENDPOINT") || err "failed to fetch ${API_ENDPOINT}"

# Extract tag_name without requiring jq
TAG=$(printf '%s' "$RELEASE_JSON" | grep -o '"tag_name":[[:space:]]*"[^"]*"' | head -1 | sed 's/.*"\([^"]*\)"$/\1/')
[ -n "$TAG" ] || err "could not parse tag_name from release metadata"
VERSION="${TAG#v}"
msg "Latest release: ${TAG}"

# Download
TMP=$(mktemp -d)
trap 'rm -rf "$TMP"' EXIT
TARBALL="archduino_${VERSION}_linux_${ARCH}.tar.gz"
CHECKSUMS="checksums.txt"
DL_BASE="${BASE_URL}/${REPO}/releases/download/${TAG}"

msg "Downloading ${TARBALL}"
curl -fsSL -o "${TMP}/${TARBALL}"  "${DL_BASE}/${TARBALL}"  || err "tarball download failed"
curl -fsSL -o "${TMP}/${CHECKSUMS}" "${DL_BASE}/${CHECKSUMS}" || err "checksums download failed"

# Verify
msg "Verifying checksum"
(cd "$TMP" && sha256sum --check --ignore-missing "$CHECKSUMS") || err "checksum verification failed"

# Extract
msg "Extracting"
tar -xzf "${TMP}/${TARBALL}" -C "$TMP"

# Install
msg "Installing to /usr/local/bin (sudo)"
sudo install -m 0755 "${TMP}/archduino" /usr/local/bin/archduino

msg "Installing shell completions"
sudo install -Dm 0644 "${TMP}/completions/archduino.bash" /usr/share/bash-completion/completions/archduino
sudo install -Dm 0644 "${TMP}/completions/_archduino"     /usr/share/zsh/site-functions/_archduino
sudo install -Dm 0644 "${TMP}/completions/archduino.fish" /usr/share/fish/vendor_completions.d/archduino.fish

msg "Launching: archduino install $*"
exec /usr/local/bin/archduino install "$@"