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

script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
root="${DOBOTAI_SOURCE_ROOT:-$(cd "$script_dir/.." && pwd)}"
go_bin="${GO_BIN:-/home/zheromiku/.local/share/go1.26.5/bin/go}"
bin_dir="$root/bin"
current="$bin_dir/dobotai"
next="$bin_dir/dobotai.new"
previous="$bin_dir/dobotai.prev"
service="dobotai.service"
version_url="http://127.0.0.1:8090/version"

if [[ -n "$(git -C "$root" status --porcelain)" ]]; then
    echo "DobotAI source worktree is dirty; refusing unverifiable build" >&2
    exit 1
fi

commit_sha="$(git -C "$root" rev-parse HEAD)"
version="${DOBOTAI_VERSION:-dev}"
build_time="$(date -u '+%Y-%m-%dT%H:%M:%SZ')"
ldflags="-X main.version=$version -X main.commitSHA=$commit_sha -X main.buildTime=$build_time"

mkdir -p "$bin_dir"
cd "$root"

"$go_bin" build -trimpath -ldflags "$ldflags" -o "$next" ./cmd/dobotai
chmod 0755 "$next"

if [[ -f "$current" ]]; then
    cp -p "$current" "$previous"
fi
mv -f "$next" "$current"

systemctl --user restart "$service"

for _ in $(seq 1 30); do
    if curl --noproxy '*' --fail --silent --max-time 2 http://127.0.0.1:8090/healthz >/dev/null; then
        deployed_sha="$(curl --noproxy '*' --fail --silent --max-time 2 "$version_url" | python3 -c 'import json,sys; print(json.load(sys.stdin).get("commit_sha", ""))' 2>/dev/null || true)"
        if [[ "$deployed_sha" == "$commit_sha" ]]; then
            echo "DOBOTAI_DEPLOY_OK"
            echo "DOBOTAI_COMMIT_SHA=$commit_sha"
            exit 0
        fi
    fi
    sleep 1
done

echo "DobotAI health check failed; attempting binary rollback" >&2
if [[ -f "$previous" ]]; then
    cp -p "$previous" "$current"
    systemctl --user restart "$service"
fi
systemctl --user status "$service" --no-pager >&2 || true
exit 1