setup.sh

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

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PLUGIN_SPEC="@devtheops/opencode-plugin-otel"
OPENCODE_CONFIG="$HOME/.config/opencode/opencode.json"

log()  { printf '[%s] [INFO]  %s\n' "$(date '+%H:%M:%S')" "$*"; }
warn() { printf '[%s] [WARN]  %s\n' "$(date '+%H:%M:%S')" "$*" >&2; }
err()  { printf '[%s] [ERROR] %s\n' "$(date '+%H:%M:%S')" "$*" >&2; }

trap 'err "Setup failed (line $LINENO). See output above for details."' ERR

log "Starting opencode-otel-observability setup"

# 0. Check prerequisites
log "Checking prerequisites (docker, docker compose, uv)..."
if ! command -v docker >/dev/null 2>&1; then
    err "'docker' is not installed."
    exit 1
fi
log "  found docker: $(command -v docker)"
if ! docker compose version >/dev/null 2>&1; then
    err "'docker compose' (v2) is not available."
    exit 1
fi
log "  found docker compose: $(docker compose version --short 2>/dev/null || echo unknown)"
if ! command -v uv >/dev/null 2>&1; then
    err "'uv' is not installed. See https://docs.astral.sh/uv/"
    exit 1
fi
log "  found uv: $(command -v uv)"
log "Prerequisites OK"

# 1. Configure opencode.json (idempotent). opencode installs the plugin from npm at startup.
log "Configuring $OPENCODE_CONFIG..."
if [ -f "$OPENCODE_CONFIG" ]; then
    uv run python - "$OPENCODE_CONFIG" "$PLUGIN_SPEC" <<'EOF'
import json, sys
path, spec = sys.argv[1], sys.argv[2]
with open(path) as f:
    c = json.load(f)
c.setdefault("plugin", [])
if spec not in c["plugin"]:
    c["plugin"].append(spec)
    with open(path, "w") as f:
        json.dump(c, f, indent=2)
        f.write("\n")
    print(f">>> Added {spec} to opencode.json")
else:
    print(f">>> Plugin already in opencode.json")
EOF
else
    log "  $OPENCODE_CONFIG not found, creating with plugin entry..."
    mkdir -p "$(dirname "$OPENCODE_CONFIG")"
    printf '{"plugin":["%s"]}\n' "$PLUGIN_SPEC" > "$OPENCODE_CONFIG"
fi
log "opencode.json configured"

log "Currently installed plugins:"
uv run python -c "
import json
with open('$OPENCODE_CONFIG') as f:
    c = json.load(f)
for p in c.get('plugin', []):
    print(f'  - {p}')
"

# 2. Start the stack
log "Starting observability stack (docker compose up -d)..."
docker compose -f "$SCRIPT_DIR/../docker-compose.yml" up -d
log "Observability stack is up"

log "Setup complete."
echo ""
echo "Run opencode with telemetry:"
echo "  just run-opencode"
echo ""
echo "Or export env vars and run opencode directly:"
echo "  export OPENCODE_ENABLE_TELEMETRY=1"
echo "  export OPENCODE_OTLP_ENDPOINT=http://localhost:4317"
echo "  export OPENCODE_OTLP_PROTOCOL=grpc"