#!/usr/bin/env bash

# AzerothCore Starter Script
# This script handles the execution of AzerothCore binaries with optional GDB support
#
# Usage: starter <binary> [gdb_file] [config] [syslog] [syserr] [gdb_enabled] [crashes_path]
#
# Parameters:
#   $1 - Binary to execute (required)
#   $2 - GDB configuration file (optional)
#   $3 - Configuration file path (optional)
#   $4 - System log file (optional)
#   $5 - System error file (optional)  
#   $6 - GDB enabled flag (0/1, optional)
#   $7 - Crashes directory path (optional)

BINPATH="$1"
BINFILE="$2"
GDB_FILE="$3"
CONFIG="$4"
SYSLOG="$5"
SYSERR="$6"
GDB_ENABLED="${7:-0}"
CRASHES_PATH="$8"

BINARY=$(realpath "$BINPATH/$BINFILE")

# Default values
CURRENT_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
DEFAULT_CRASHES_PATH="$CURRENT_PATH/logs/crashes"
DEFAULT_GDB_FILE="$CURRENT_PATH/gdb.conf"

# Set defaults if not provided
CONFIG="${CONFIG:-""}"
CRASHES_PATH="${CRASHES_PATH:-$DEFAULT_CRASHES_PATH}"
GDB_FILE="${GDB_FILE:-$DEFAULT_GDB_FILE}"

# Validate binary
if [ -z "$BINARY" ]; then
    echo "Error: Binary parameter is required"
    echo "Usage: $0 <binary> [gdb_file] [config] [syslog] [syserr] [gdb_enabled] [crashes_path]"
    exit 1
fi

if [ ! -f "$BINARY" ]; then
    echo "Error: Binary '$BINARY' not found"
    exit 1
fi

# Create crashes directory if it doesn't exist
mkdir -p "$CRASHES_PATH"

cd $BINPATH || {
    echo "Error: Could not change to binary path '$BINPATH'"
    exit 1
}

EXECPATH=$(realpath "$BINFILE")

if [ "$GDB_ENABLED" -eq 1 ]; then
    echo "Starting $EXECPATH with GDB enabled"
    
    # Generate GDB configuration on the fly
    TIMESTAMP=$(date +%Y-%m-%d-%H-%M-%S)
    GDB_TEMP_FILE="$CRASHES_PATH/gdb-$TIMESTAMP.conf"
    GDB_OUTPUT_FILE="$CRASHES_PATH/gdb-$TIMESTAMP.txt"
    
    # Create GDB configuration
    cat > "$GDB_TEMP_FILE" << EOF
set logging file $GDB_OUTPUT_FILE
set logging enabled on
set debug timestamp
EOF

    # Add run command with config if specified
    if [ -n "$CONFIG" ]; then
        echo "run -c $CONFIG" >> "$GDB_TEMP_FILE"
    else
        echo "run" >> "$GDB_TEMP_FILE"
    fi
    
    cat >> "$GDB_TEMP_FILE" << EOF
bt
bt full
info thread
thread apply all backtrace full
EOF

    # Create log files if specified
    if [ -n "$SYSLOG" ]; then
        [ ! -f "$SYSLOG" ] && touch "$SYSLOG"
    fi
    if [ -n "$SYSERR" ]; then
        [ ! -f "$SYSERR" ] && touch "$SYSERR"
    fi

    # Execute with GDB
    if [ "${WITH_CONSOLE:-0}" -eq 0 ] && [ -n "$SYSLOG" ] && [ -n "$SYSERR" ]; then
        gdb -x "$GDB_TEMP_FILE" --batch "$EXECPATH" >> "$SYSLOG" 2>> "$SYSERR"
    else
        echo "> Console enabled"
        if [ -n "$SYSLOG" ] && [ -n "$SYSERR" ]; then
            gdb -x "$GDB_TEMP_FILE" --batch "$EXECPATH" > >(tee "$SYSLOG") 2> >(tee "$SYSERR" >&2)
        else
            gdb -x "$GDB_TEMP_FILE" --batch "$EXECPATH"
        fi
    fi
    
    # Cleanup temporary GDB file
    rm -f "$GDB_TEMP_FILE"
else
    if [ -n "$CONFIG" ]; then
        script -q -e -c "$EXECPATH -c \"$CONFIG\""
    else
        script -q -e -c "$EXECPATH"
    fi
fi