CMakeLists.txt

cmake_minimum_required(VERSION 3.13)

project(inkshelf C)

set(CMAKE_C_STANDARD 11)
set(CMAKE_C_STANDARD_REQUIRED ON)

# PocketBook apps are plain ELF binaries renamed to <name>.app and dropped on
# the SD card under system/bin or applications/. We build the binary as
# "inkshelf.app" directly so the artifact is install-ready.
add_executable(inkshelf.app
    src/main.c
    src/app.c
    src/config.c
    src/catalogs.c
    src/ui.c
    src/screens.c
    src/xml.c
    src/opds.c
    src/opds_ui.c
    src/http.c
    src/net.c
    src/library.c
    src/library_scan.c
    src/download.c
    src/httpd.c
    src/wifi_drop_ui.c
)

target_include_directories(inkshelf.app PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/src
)

# Embed the build version for the main screen's about block: the latest
# semantic-version tag (v1.0, v1.1, ...), plus "-<n>-g<hash>" when the build is
# ahead of that tag, else a bare short hash before the first tag exists. Only
# v* tags count, so unrelated tags never become the displayed version. Passed
# as a string literal; screens.c keeps a "dev" fallback for builds outside a git
# checkout (e.g. the host test gate).
execute_process(
    COMMAND git describe --tags --always --match "v*"
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_VERSION
    OUTPUT_STRIP_TRAILING_WHITESPACE
    ERROR_QUIET
)
if(NOT GIT_VERSION)
    set(GIT_VERSION "dev")
endif()
target_compile_definitions(inkshelf.app PRIVATE INKSHELF_VERSION="${GIT_VERSION}")

# The WiFi-drop upload server (httpd.c) runs its accept loop on a pthread.
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
target_link_libraries(inkshelf.app PRIVATE Threads::Threads)

# libcurl provides HTTP for OPDS fetches and book downloads. Shipped in the
# PocketBook SDK toolchain; find it via the sysroot, fall back to -lcurl.
find_package(CURL QUIET)
if(CURL_FOUND)
    target_link_libraries(inkshelf.app PRIVATE CURL::libcurl)
else()
    find_library(CURL_LIB NAMES curl HINTS ${PB_SDK_ROOT}/lib ${PB_SYSROOT}/usr/lib)
    if(CURL_LIB)
        target_link_libraries(inkshelf.app PRIVATE ${CURL_LIB})
    else()
        message(WARNING "libcurl not found; linking with -lcurl")
        target_link_libraries(inkshelf.app PRIVATE curl)
    endif()
endif()

# InkView is the PocketBook UI/runtime library. When building inside the SDK
# image it is found via the sysroot; allow an explicit hint otherwise.
find_library(INKVIEW_LIB
    NAMES inkview
    HINTS ${PB_SDK_ROOT}/lib ${PB_SYSROOT}/usr/lib
)

if(INKVIEW_LIB)
    target_link_libraries(inkshelf.app PRIVATE ${INKVIEW_LIB})
else()
    # Fall back to a bare -linkview so configuration still succeeds on a host
    # without the SDK present (e.g. for editing / static analysis).
    message(WARNING "libinkview not found via find_library; linking with -linkview")
    target_link_libraries(inkshelf.app PRIVATE inkview)
endif()

# Release binaries are copied onto a reader, never debugged there, so strip the
# symbol table at link time — it is most of the file. Debug builds and the
# no-build-type dev loop keep their symbols. (The SDK's own generated toolchain
# file does the same for its release configuration.)
target_link_options(inkshelf.app PRIVATE $<$<CONFIG:Release>:-s>)

# No "lib" prefix, keep the .app suffix exactly.
set_target_properties(inkshelf.app PROPERTIES
    PREFIX ""
    SUFFIX ""
    OUTPUT_NAME "inkshelf.app"
)