#!/bin/bash
# -----------------------------------------------------------------------------------------------
# --------------------------------- Array Start Orchestrator -----------------------------------
# -----------------------------------------------------------------------------------------------
# Single entry point for "At Startup of Array" in User Scripts plugin.
# Launches everything configured in ARRAY_START_SCRIPTS in Master.conf.
#
# What it launches (configured in Master.conf ARRAY_START_SCRIPTS):
#   Transcodes/ramdisk_setup.sh          — creates tmpfs + symlink before Emby starts (one-shot)
#   unRAID_Essentials/docker_syslog_filter.sh — suppress veth log noise (one-shot)
#   unRAID_Essentials/php_fpm_max_children.sh — WebGUI performance tuning (one-shot)
#   Docker_Essentials/docker_network_connect.sh — connect containers to extra networks (one-shot)
#   unRAID_Essentials/system_watchdog.sh  — system health monitor (continuous loop)
#   Docker_Essentials/docker_watchdog.sh  — container health monitor (continuous loop)
#   Failover/failover.sh                  — mutual failover monitor (continuous loop)
#
# One-shot scripts run and exit naturally — array_start.sh confirms completion.
# Continuous scripts run until array stops or SIGTERM received.
# This orchestrator exits after launching all scripts — unRAID sees it complete normally.
#
# Add or remove scripts: edit ARRAY_START_SCRIPTS in Master.conf.
# Order matters — ramdisk first, network before watchdogs, watchdogs before failover.
# No changes to this script ever needed.
# -----------------------------------------------------------------------------------------------

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ECOSYSTEM_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

source "$ECOSYSTEM_ROOT/Master.conf"
source "$ECOSYSTEM_ROOT/common.sh"

# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_GEAR Setup ━━━
# -----------------------------------------------------------------------------------------------
echo ""
echo "━━━ $ICON_GEAR Array Start — $(date '+%Y-%m-%d %H:%M:%S') ━━━"

if [[ "$EUID" -ne 0 ]]; then
    error "Must be run as root"
    exit 1
fi

success "Running as root"

SCRIPT_COUNT=${#ARRAY_START_SCRIPTS[@]}
info "Launching $SCRIPT_COUNT script(s)..."
echo ""

LAUNCHED=0
FAILED=0

for relative_path in "${ARRAY_START_SCRIPTS[@]}"; do
    [[ -z "$relative_path" ]] && continue

    SCRIPT_PATH="$ECOSYSTEM_ROOT/$relative_path"
    SCRIPT_NAME=$(basename "$SCRIPT_PATH")

    if [[ ! -f "$SCRIPT_PATH" ]]; then
        error "$SCRIPT_NAME — not found at $SCRIPT_PATH"
        ((FAILED++))
        continue
    fi

    if [[ ! -x "$SCRIPT_PATH" ]]; then
        error "$SCRIPT_NAME — not executable"
        ((FAILED++))
        continue
    fi

    info "$ICON_START Launching $SCRIPT_NAME..."
    bash "$SCRIPT_PATH" &
    PID=$!

    # Brief pause to let script initialize and catch immediate failures
    sleep 1

    if kill -0 "$PID" 2>/dev/null; then
        success "$SCRIPT_NAME — running (PID $PID)"
        ((LAUNCHED++))
    else
        # Script exited — check if it was a one-shot (exit 0) or a failure
        wait "$PID"
        EXIT_CODE=$?
        if [[ "$EXIT_CODE" -eq 0 ]]; then
            success "$SCRIPT_NAME — completed (one-shot)"
            ((LAUNCHED++))
        else
            error "$SCRIPT_NAME — exited with code $EXIT_CODE"
            ((FAILED++))
        fi
    fi

done

# -----------------------------------------------------------------------------------------------
# ━━━ $ICON_SUMMARY Summary ━━━
# -----------------------------------------------------------------------------------------------
echo ""
echo "━━━━━ $ICON_SUMMARY ARRAY START SUMMARY ━━━━━"
echo "$ICON_SUCCESS Launched: $LAUNCHED"
echo "$ICON_ERROR  Failed:   $FAILED"
echo "$ICON_TIME   Time:     $(date '+%H:%M:%S')"
echo ""

if [[ "$FAILED" -gt 0 ]]; then
    echo "$ICON_WARN Status: $FAILED script(s) failed to launch — check logs"
    notify "Array start on $(hostname) — $FAILED script(s) failed to launch" "Array Start" "warning"
else
    echo "$ICON_DONE Status: $ICON_SUCCESS All scripts launched"
fi
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"