# ==============================================================================
# Find implot
# ==============================================================================
# Builds ImPlot from the bundled sources in deps/implot/.
#
# Targets provided:
#   implot::implot - The ImPlot library target
#
# Variables set:
#   implot_FOUND       - TRUE if implot is available
#   implot_LIBRARIES   - The implot library target (implot::implot)
#   implot_INCLUDE_DIR - Include directories for implot
#
# Configuration (set before find_package):
#   IMPLOT_BUILD_DEMO - Include demo sources (default: ON)
# ==============================================================================

if (DEFINED _FINDIMPLOT_INCLUDED)
    return()
endif()
set(_FINDIMPLOT_INCLUDED TRUE)

option(IMPLOT_BUILD_DEMO "Include ImPlot demo sources" ON)

set(_implot_source_dir "${CMAKE_CURRENT_LIST_DIR}/implot")

if (NOT EXISTS "${_implot_source_dir}/implot.cpp")
    message(FATAL_ERROR "implot sources not found at '${_implot_source_dir}'")
endif()

if (NOT TARGET imgui::imgui)
    message(FATAL_ERROR "implot requires imgui::imgui to be available before find_package(implot)")
endif()

add_subdirectory("${_implot_source_dir}" "${CMAKE_BINARY_DIR}/_deps/implot-build" EXCLUDE_FROM_ALL)

if (NOT TARGET implot::implot)
    message(FATAL_ERROR "implot: target implot::implot was not created")
endif()

set(implot_FOUND      TRUE)
set(implot_LIBRARIES  implot::implot)
get_target_property(_implot_inc implot INTERFACE_INCLUDE_DIRECTORIES)
set(implot_INCLUDE_DIR "${_implot_inc}")

if (_implot_inc AND TARGET implot)
    set_target_properties(implot PROPERTIES
        INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_implot_inc}"
    )
endif()

set(IMPLOT_LICENSE_FILE "${_implot_source_dir}/LICENSE" CACHE FILEPATH "Path to ImPlot license file")