#!/bin/bash
# ppf-deploy -- deploy PPF code to nodes
#
# Usage:
#   ppf-deploy [--no-restart] [targets...]
#
# Targets:
#   all          odin + all workers (default)
#   workers      cassius, edge, sentinel
#   master       odin
#   <hostname>   specific host(s)

set -eu

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
# shellcheck disable=SC1091
. "$SCRIPT_DIR/lib/ppf-common.sh"

# ---------------------------------------------------------------------------
# Usage
# ---------------------------------------------------------------------------
usage() {
    cat <<EOF
Usage: ppf-deploy [--no-restart] [targets...]

Deploy PPF code to nodes.

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
  --help         show this help
  --version      show version

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

# ---------------------------------------------------------------------------
# Parse args
# ---------------------------------------------------------------------------
DO_RESTART=1
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 ;;
        -*)           die "Unknown option: $1" ;;
        *)            TARGETS="${TARGETS:+$TARGETS }$1" ;;
    esac
    shift
done

TARGETS="${TARGETS:-all}"
HOSTS=$(resolve_targets $TARGETS)

[ -z "$HOSTS" ] && die "No valid targets"

section "Deploy targets"
log_info "$HOSTS"

# ---------------------------------------------------------------------------
# Step 1: Validate syntax
# ---------------------------------------------------------------------------
validate_syntax

# ---------------------------------------------------------------------------
# Step 2: Rsync code to targets
# ---------------------------------------------------------------------------
section "Syncing code"

for host in $HOSTS; do
    if is_master "$host"; then
        dest="/home/podman/ppf/"
    else
        dest="/home/podman/ppf/src/"
    fi

    log_info "${host} ${C_DIM}-> ${dest}${C_RST}"

    ansible_cmd "$host" -m synchronize \
        -a "src=$PPF_DIR/ dest=$dest rsync_opts='--include=*.py,--include=servers.txt,--include=Dockerfile,--exclude=*'" \
        > /dev/null 2>&1 \
        && log_ok "$host synced" \
        || { log_err "$host sync failed"; continue; }
done

# ---------------------------------------------------------------------------
# Step 3: Copy compose file per role
# ---------------------------------------------------------------------------
section "Copying compose files"

for host in $HOSTS; do
    if is_master "$host"; then
        src="$PPF_DIR/compose.master.yml"
    else
        src="$PPF_DIR/compose.worker.yml"
    fi

    ansible_cmd "$host" -m copy \
        -a "src=$src dest=/home/podman/ppf/compose.yml owner=podman group=podman" \
        > /dev/null 2>&1 \
        && log_ok "$host compose file" \
        || log_err "$host compose copy failed"
done

# ---------------------------------------------------------------------------
# Step 4: Fix ownership
# ---------------------------------------------------------------------------
section "Fixing ownership"

csv=$(hosts_csv $HOSTS)
ansible_cmd "$csv" -m raw -a "chown -R podman:podman /home/podman/ppf/" \
    > /dev/null 2>&1 \
    && log_ok "ownership fixed on all targets" \
    || log_err "ownership fix failed on some targets"

# ---------------------------------------------------------------------------
# Step 5: Restart (unless --no-restart)
# ---------------------------------------------------------------------------
if [ "$DO_RESTART" -eq 1 ]; then
    section "Restarting containers"

    for host in $HOSTS; do
        compose_cmd "$host" "restart" > /dev/null 2>&1 \
            && log_ok "$host restarted" \
            || log_err "$host restart failed"
    done

    # Brief pause for containers to settle
    sleep 2

    # ---------------------------------------------------------------------------
    # Step 6: Show status
    # ---------------------------------------------------------------------------
    section "Container status"

    for host in $HOSTS; do
        local_output=$(compose_cmd "$host" "ps" 2>/dev/null) || true
        if echo "$local_output" | grep -qi "up\|running"; then
            log_ok "$host"
        else
            log_warn "$host"
        fi
        echo "$local_output" | grep -v '^\s*$' | while IFS= read -r line; do
            log_dim "$line"
        done
    done
else
    log_info "Restart skipped (--no-restart)"
fi

printf "\n"
log_ok "Deploy complete"