cmake_minimum_required(VERSION 3.14)
project(Darkflame)
include(CTest)

set (CMAKE_CXX_STANDARD 17)

# Read variables from file
FILE(READ "${CMAKE_SOURCE_DIR}/CMakeVariables.txt" variables)

string(REPLACE "\\\n" "" variables ${variables})
string(REPLACE "\n" ";" variables ${variables})

# Set the cmake variables, formatted as "VARIABLE #" in variables
foreach(variable ${variables})
    # If the string contains a #, skip it
    if(NOT "${variable}" MATCHES "#")
    
    # Split the variable into name and value
    	string(REPLACE "=" ";" variable ${variable})

    # Check that the length of the variable is 2 (name and value)
    	list(LENGTH variable length)
    	if(${length} EQUAL 2)

    		list(GET variable 0 variable_name)
    		list(GET variable 1 variable_value)

    		# Set the variable
    		set(${variable_name} ${variable_value})

    		# Add compiler definition
    		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D${variable_name}=${variable_value}")

    		message(STATUS "Variable: ${variable_name} = ${variable_value}")
		endif()
	endif()
endforeach()

# On windows it's better to build this from source, as there's no way FindZLIB is gonna find it
if(NOT WIN32)
find_package(ZLIB REQUIRED)
endif()

# Fetch External (Non-Submodule) Libraries
if(WIN32)
include(FetchContent)

FetchContent_Declare(
    zlib
    URL https://github.com/madler/zlib/archive/refs/tags/v1.2.11.zip
    URL_HASH MD5=9d6a627693163bbbf3f26403a3a0b0b1
)

FetchContent_MakeAvailable(zlib)

set(ZLIB_INCLUDE_DIRS ${zlib_SOURCE_DIR} ${zlib_BINARY_DIR})
set_target_properties(zlib PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${ZLIB_INCLUDE_DIRS}") # Why?
add_library(ZLIB::ZLIB ALIAS zlib) # You're welcome

endif(WIN32)

if(UNIX AND NOT APPLE)
    include(FetchContent)
    if (__include_backtrace__ AND __compile_backtrace__)
		FetchContent_Declare(
			backtrace
			GIT_REPOSITORY https://github.com/ianlancetaylor/libbacktrace.git
		)

		FetchContent_MakeAvailable(backtrace)

		if (NOT EXISTS ${backtrace_SOURCE_DIR}/.libs)
		set(backtrace_make_cmd "${backtrace_SOURCE_DIR}/configure --prefix=\"/usr\" --enable-shared --with-system-libunwind")

		execute_process(
			COMMAND bash -c "cd ${backtrace_SOURCE_DIR} && ${backtrace_make_cmd} && make && cd ${CMAKE_SOURCE_DIR}"
		)
		endif()

		link_directories(${backtrace_SOURCE_DIR}/.libs/)
		include_directories(${backtrace_SOURCE_DIR})
	endif()
endif()

# Set the version
set(PROJECT_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DPROJECT_VERSION=${PROJECT_VERSION}")

# Echo the version
message(STATUS "Version: ${PROJECT_VERSION}")

if(WIN32)
    add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
endif(WIN32)

# Our output dir
set(CMAKE_BINARY_DIR ${PROJECT_BINARY_DIR})

# Create a /res directory
make_directory(${CMAKE_BINARY_DIR}/res)

# Create a /locale directory
make_directory(${CMAKE_BINARY_DIR}/locale)

# Create a /logs directory
make_directory(${CMAKE_BINARY_DIR}/logs)

# Copy ini files on first build
if (NOT EXISTS ${PROJECT_BINARY_DIR}/authconfig.ini)
    configure_file(
        ${CMAKE_SOURCE_DIR}/resources/authconfig.ini ${PROJECT_BINARY_DIR}/authconfig.ini
        COPYONLY
    )
endif()
if (NOT EXISTS ${PROJECT_BINARY_DIR}/chatconfig.ini)
    configure_file(
        ${CMAKE_SOURCE_DIR}/resources/chatconfig.ini ${PROJECT_BINARY_DIR}/chatconfig.ini
        COPYONLY
    )
endif()
if (NOT EXISTS ${PROJECT_BINARY_DIR}/worldconfig.ini)
    configure_file(
        ${CMAKE_SOURCE_DIR}/resources/worldconfig.ini ${PROJECT_BINARY_DIR}/worldconfig.ini
        COPYONLY
    )
endif()
if (NOT EXISTS ${PROJECT_BINARY_DIR}/masterconfig.ini)
    configure_file(
        ${CMAKE_SOURCE_DIR}/resources/masterconfig.ini ${PROJECT_BINARY_DIR}/masterconfig.ini
        COPYONLY
    )
endif()

# Copy files to output
configure_file("${CMAKE_SOURCE_DIR}/vanity/CREDITS.md" "${CMAKE_BINARY_DIR}/vanity/CREDITS.md" COPYONLY)
configure_file("${CMAKE_SOURCE_DIR}/vanity/INFO.md" "${CMAKE_BINARY_DIR}/vanity/INFO.md" COPYONLY)
configure_file("${CMAKE_SOURCE_DIR}/vanity/TESTAMENT.md" "${CMAKE_BINARY_DIR}/vanity/TESTAMENT.md" COPYONLY)
configure_file("${CMAKE_SOURCE_DIR}/vanity/NPC.xml" "${CMAKE_BINARY_DIR}/vanity/NPC.xml" COPYONLY)

# Move our migrations for MasterServer to run
file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/migrations/)
file(GLOB SQL_FILES ${CMAKE_SOURCE_DIR}/migrations/dlu/*.sql)
foreach (file ${SQL_FILES})
    get_filename_component(file ${file} NAME)
    if (NOT EXISTS ${PROJECT_BINARY_DIR}/migrations/${file})
        configure_file(
            ${CMAKE_SOURCE_DIR}/migrations/dlu/${file} ${PROJECT_BINARY_DIR}/migrations/${file}
            COPYONLY
        )
    endif()
endforeach()

# 3rdparty includes
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/raknet/Source/)
if(APPLE)
	include_directories(/usr/local/include/)
endif(APPLE)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/tinyxml2/)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/recastnavigation/Recast/Include)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/recastnavigation/Detour/Include)
include_directories(${ZLIB_INCLUDE_DIRS})

# Bcrypt
if (NOT WIN32)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/libbcrypt)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/libbcrypt/include/bcrypt)
else ()
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/libbcrypt/include)
endif ()

# Our includes
include_directories(${PROJECT_BINARY_DIR})
include_directories(${PROJECT_SOURCE_DIR}/dChatFilter/)
include_directories(${PROJECT_SOURCE_DIR}/dCommon/)
include_directories(${PROJECT_SOURCE_DIR}/dGame/)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dBehaviors)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dComponents)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dGameMessages)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dInventory)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dMission)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dEntity)
include_directories(${PROJECT_SOURCE_DIR}/dGame/dUtilities)
include_directories(${PROJECT_SOURCE_DIR}/dPhysics/)
include_directories(${PROJECT_SOURCE_DIR}/dZoneManager/)
include_directories(${PROJECT_SOURCE_DIR}/dDatabase/)
include_directories(${PROJECT_SOURCE_DIR}/dDatabase/Tables/)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/SQLite/)
include_directories(${PROJECT_SOURCE_DIR}/thirdparty/cpplinq/)
include_directories(${PROJECT_SOURCE_DIR}/dNet/)
include_directories(${PROJECT_SOURCE_DIR}/dScripts/)

# Lib folders:
link_directories(${PROJECT_BINARY_DIR})

# Third-Party libraries
add_subdirectory(thirdparty)

# Source Code
file(
GLOB SOURCES
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dWorldServer/*.cpp
)

# Source Code for AuthServer
file(
GLOB SOURCES_AUTH
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dAuthServer/*.cpp
)

# Source Code for MasterServer
file(
GLOB SOURCES_MASTER
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dMasterServer/*.cpp
)

# Source Code for ChatServer
file(
GLOB SOURCES_CHAT
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dChatServer/*.cpp
)

# Source Code for dCommon
file(
GLOB SOURCES_DCOMMON
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dCommon/*.cpp
)

# Source Code for dChatFilter
file(
GLOB SOURCES_DCHATFILTER
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dChatFilter/*.cpp
)

# Source Code for dDatabase
file(
GLOB SOURCES_DDATABASE
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dDatabase/*.cpp
${PROJECT_SOURCE_DIR}/dDatabase/Tables/*.cpp
)

file(
    GLOB HEADERS_DDATABASE
    LIST_DIRECTORIES false
    ${PROJECT_SOURCE_DIR}/dDatabase/*.h
    ${PROJECT_SOURCE_DIR}/dDatabase/Tables/*.h
    ${PROJECT_SOURCE_DIR}/thirdparty/SQLite/*.h
)

file(
    GLOB HEADERS_DZONEMANAGER
    LIST_DIRECTORIES false
    ${PROJECT_SOURCE_DIR}/dZoneManager/*.h
)

file(
    GLOB HEADERS_DCOMMON
    LIST_DIRECTORIES false
    ${PROJECT_SOURCE_DIR}/dCommon/*.h
)

file(
    GLOB HEADERS_DGAME
    LIST_DIRECTORIES false
    ${PROJECT_SOURCE_DIR}/dGame/Entity.h 
    ${PROJECT_SOURCE_DIR}/dGame/dGameMessages/GameMessages.h
    ${PROJECT_SOURCE_DIR}/dGame/EntityManager.h
    ${PROJECT_SOURCE_DIR}/dScripts/CppScripts.h
)

# Source Code for dNet
file(
GLOB SOURCES_DNET
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dNet/*.cpp
)

# Source Code for dGame
file(
GLOB SOURCES_DGAME
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dGame/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dBehaviors/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dComponents/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dGameMessages/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dInventory/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dMission/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dEntity/*.cpp
${PROJECT_SOURCE_DIR}/dGame/dUtilities/*.cpp
${PROJECT_SOURCE_DIR}/dScripts/*.cpp
)

# Source Code for dZoneManager
file(
GLOB SOURCES_DZM
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dZoneManager/*.cpp
)

# Source Code for dPhysics
file(
GLOB SOURCES_DPHYSICS
LIST_DIRECTORIES false
RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
${PROJECT_SOURCE_DIR}/dPhysics/*.cpp
)

if(MSVC)
    # Skip warning for invalid conversion from size_t to uint32_t for all targets below for now
    add_compile_options("/wd4267")
endif(MSVC)

# Our static libraries:
add_library(dCommon ${SOURCES_DCOMMON})
add_library(dChatFilter ${SOURCES_DCHATFILTER})
add_library(dDatabase ${SOURCES_DDATABASE})
add_library(dNet ${SOURCES_DNET})
add_library(dGame ${SOURCES_DGAME})
add_library(dZoneManager ${SOURCES_DZM})
add_library(dPhysics ${SOURCES_DPHYSICS})
target_link_libraries(dDatabase sqlite3)
target_link_libraries(dNet dCommon) #Needed because otherwise linker errors occur.
target_link_libraries(dCommon ZLIB::ZLIB)
target_link_libraries(dCommon libbcrypt)
target_link_libraries(dDatabase mariadbConnCpp)
target_link_libraries(dNet dDatabase)
target_link_libraries(dGame dDatabase)
target_link_libraries(dChatFilter dDatabase)

if(WIN32)
target_link_libraries(raknet ws2_32)
endif(WIN32)

# Our executables:
add_executable(WorldServer ${SOURCES})
add_executable(AuthServer ${SOURCES_AUTH})
add_executable(MasterServer ${SOURCES_MASTER})
add_executable(ChatServer ${SOURCES_CHAT})

# Add out precompiled headers
target_precompile_headers(
    dGame PRIVATE 
    ${HEADERS_DGAME}
)

target_precompile_headers(
    dZoneManager PRIVATE 
    ${HEADERS_DZONEMANAGER}
)

# Need to specify to use the CXX compiler language here or else we get errors including <string>.
target_precompile_headers(
    dDatabase PRIVATE 
    "$<$<COMPILE_LANGUAGE:CXX>:${HEADERS_DDATABASE}>"
)

target_precompile_headers(
    dCommon PRIVATE
    ${HEADERS_DCOMMON}
)

target_precompile_headers(
    tinyxml2 PRIVATE
    "$<$<COMPILE_LANGUAGE:CXX>:${PROJECT_SOURCE_DIR}/thirdparty/tinyxml2/tinyxml2.h>"
)

# Target libraries to link to:
target_link_libraries(WorldServer dCommon)
target_link_libraries(WorldServer dChatFilter)
target_link_libraries(WorldServer dDatabase)
target_link_libraries(WorldServer dNet)
target_link_libraries(WorldServer dGame)
target_link_libraries(WorldServer dZoneManager)
target_link_libraries(WorldServer dPhysics)
target_link_libraries(WorldServer detour)
target_link_libraries(WorldServer recast)
target_link_libraries(WorldServer raknet)
target_link_libraries(WorldServer mariadbConnCpp)
if(UNIX)
if(NOT APPLE AND __include_backtrace__)
target_link_libraries(WorldServer backtrace)
target_link_libraries(MasterServer backtrace)
target_link_libraries(AuthServer backtrace)
target_link_libraries(ChatServer backtrace)
endif()

endif(UNIX)
target_link_libraries(WorldServer tinyxml2)

# Target libraries for Auth:
target_link_libraries(AuthServer dCommon)
target_link_libraries(AuthServer dDatabase)
target_link_libraries(AuthServer dNet)
target_link_libraries(AuthServer raknet)
target_link_libraries(AuthServer mariadbConnCpp)
if(UNIX)
target_link_libraries(AuthServer pthread)
target_link_libraries(AuthServer dl)
endif(UNIX)

# Target libraries for Master:
target_link_libraries(MasterServer dCommon)
target_link_libraries(MasterServer dDatabase)
target_link_libraries(MasterServer dNet)
target_link_libraries(MasterServer raknet)
target_link_libraries(MasterServer mariadbConnCpp)
if(UNIX)
target_link_libraries(MasterServer pthread)
target_link_libraries(MasterServer dl)
endif(UNIX)

# Target libraries for Chat:
target_link_libraries(ChatServer dCommon)
target_link_libraries(ChatServer dChatFilter)
target_link_libraries(ChatServer dDatabase)
target_link_libraries(ChatServer dNet)
target_link_libraries(ChatServer raknet)
target_link_libraries(ChatServer mariadbConnCpp)
if(UNIX)
target_link_libraries(ChatServer pthread)
target_link_libraries(ChatServer dl)
endif(UNIX)

# Compiler flags:
# Disabled deprecated warnings as the MySQL includes have deprecated code in them. 
# Disabled misleading indentation as DL_LinkedList from RakNet has a weird indent.
# Disabled no-register
# Disabled unknown pragmas because Linux doesn't understand Windows pragmas.
if(UNIX)
    if(APPLE)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++17 -O2 -Wuninitialized -D_GLIBCXX_USE_CXX11_ABI=0 -D_GLIBCXX_USE_CXX17_ABI=0 -fPIC")
    else()
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++17 -O2 -Wuninitialized -D_GLIBCXX_USE_CXX11_ABI=0 -D_GLIBCXX_USE_CXX17_ABI=0 -static-libgcc -fPIC")
    endif()
    if (__dynamic)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -rdynamic")
    endif()
    if (__ggdb)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ggdb")
    endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -O2 -fPIC")
endif(UNIX)

if(WIN32)
add_dependencies(MasterServer WorldServer)
add_dependencies(MasterServer AuthServer)
add_dependencies(MasterServer ChatServer)
endif()

# Finally, add the tests
add_subdirectory(tests)