#!/bin/bash
# ppf-deploy -- deploy PPF code to nodes
#
# Usage:
#   ppf-deploy [options] [targets...]
#
# Targets:
#   all          odin + all workers (default)
#   workers      cassius, edge, sentinel
#   master       odin
#   <hostname>   specific host(s)

set -eu

# Resolve to real path (handles symlinks from ~/.local/bin/)
SCRIPT_PATH="$(cd "$(dirname "$0")" && pwd)/$(basename "$0")"
SCRIPT_DIR="$(dirname "$(readlink -f "$SCRIPT_PATH")")"
# shellcheck disable=SC1091
. "$SCRIPT_DIR/lib/ppf-common.sh"

PLAYBOOK_DIR="$SCRIPT_DIR/playbooks"

# ---------------------------------------------------------------------------
# Usage
# ---------------------------------------------------------------------------
usage() {
    cat <<EOF
Usage: ppf-deploy [options] [targets...]

Deploy PPF code to nodes via Ansible playbook.

Targets:
  all          odin + all workers (default)
  workers      cassius, edge, sentinel
  master       odin
  <hostname>   specific host(s)

Options:
  --no-restart   sync files only, skip container restart
  --check        dry run (ansible --check --diff)
  -v             verbose ansible output
  --help         show this help
  --version      show version

Steps performed:
  1. Validate Python syntax locally
  2. Rsync *.py + servers.txt (role-aware destinations)
  3. Copy compose file per role
  4. Fix ownership (podman:podman)
  5. Restart containers on change (unless --no-restart)
  6. Show container status
EOF
    exit 0
}

# ---------------------------------------------------------------------------
# Parse args
# ---------------------------------------------------------------------------
DO_RESTART=1
CHECK_MODE=0
VERBOSE=""
TARGETS=""

while [ $# -gt 0 ]; do
    case "$1" in
        --help|-h)    usage ;;
        --version|-V) echo "ppf-deploy $PPF_TOOLS_VERSION"; exit 0 ;;
        --no-restart) DO_RESTART=0 ;;
        --check)      CHECK_MODE=1 ;;
        -v)           VERBOSE="-v" ;;
        -*)           die "Unknown option: $1" ;;
        *)            TARGETS="${TARGETS:+$TARGETS }$1" ;;
    esac
    shift
done

TARGETS="${TARGETS:-all}"

# ---------------------------------------------------------------------------
# Pre-flight: local syntax validation
# ---------------------------------------------------------------------------
validate_syntax

# ---------------------------------------------------------------------------
# Build ansible-playbook arguments
# ---------------------------------------------------------------------------
ARGS=(-i "$PLAYBOOK_DIR/inventory.ini")
ARGS+=(-e "ppf_src=$PPF_DIR")

if [ "$DO_RESTART" -eq 0 ]; then
    ARGS+=(-e "ppf_restart=false")
fi

if [ "$CHECK_MODE" -eq 1 ]; then
    ARGS+=(--check --diff)
fi

[ -n "$VERBOSE" ] && ARGS+=("$VERBOSE")

# Target resolution: map aliases to ansible --limit
case "$TARGETS" in
    all) ;; # no --limit = all hosts in inventory
    *)
        LIMIT=$(resolve_targets $TARGETS | tr ' ' ',')
        ARGS+=(--limit "$LIMIT")
        ;;
esac

ARGS+=("$PLAYBOOK_DIR/deploy.yml")

# ---------------------------------------------------------------------------
# Run playbook
# ---------------------------------------------------------------------------
section "Deploying to ${TARGETS}"
ansible_playbook_cmd "${ARGS[@]}"