# Initialization
AC_PREREQ([2.69])
AC_INIT([phosphor-fan-presence], [1.0],
[https://github.com/openbmc/phosphor-fan-presence/issues])
AC_LANG([C++])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([subdir-objects -Wall -Werror foreign dist-xz])
AM_SILENT_RULES([yes])

# Use gcc-ar and gcc-ranlib for static libraries built with -flto
AC_SUBST([AR], [${ac_tool_prefix}gcc-ar])
AC_SUBST([RANLIB], [${ac_tool_prefix}gcc-ranlib])

# Checks for programs.
AC_PROG_CXX
AM_PROG_AR
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# Python
AM_PATH_PYTHON([2.7], [AC_SUBST([PYTHON], [echo "$PYTHON"])],
[AC_MSG_ERROR([Minimum python version(2.7) not found])])

# Checks for typedefs, structures, and compiler characteristics.
AX_CXX_COMPILE_STDCXX_17([noext])
AX_APPEND_COMPILE_FLAGS([-Wall -Werror], [CXXFLAGS])

# Checks for libraries.
PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])
PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus])
PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging])
PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221])
PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces])
PKG_CHECK_MODULES([LIBEVDEV], [libevdev])
PKG_CHECK_MODULES([STDPLUS], [stdplus])

# Checks for library functions.
LT_INIT # Required for systemd linking

# Check/set gtest specific functions.
AX_PTHREAD([GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=1"],[GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=0"])
AC_SUBST(GTEST_CPPFLAGS)
AC_ARG_ENABLE([oe-sdk],
    AS_HELP_STRING([--enable-oe-sdk], [Link testcases absolutely against OE SDK so they can be ran within it.])
)
AC_ARG_VAR(OECORE_TARGET_SYSROOT,
    [Path to the OE SDK SYSROOT])
AS_IF([test "x$enable_oe_sdk" == "xyes"],
    AS_IF([test "x$OECORE_TARGET_SYSROOT" == "x"],
          AC_MSG_ERROR([OECORE_TARGET_SYSROOT must be set with --enable-oe-sdk])
    )
    AC_MSG_NOTICE([Enabling OE-SDK at $OECORE_TARGET_SYSROOT])
    [
        testcase_flags="-Wl,-rpath,\${OECORE_TARGET_SYSROOT}/lib"
        testcase_flags="${testcase_flags} -Wl,-rpath,\${OECORE_TARGET_SYSROOT}/usr/lib"
        testcase_flags="${testcase_flags} -Wl,-dynamic-linker,`find \${OECORE_TARGET_SYSROOT}/lib/ld-*.so | sort -r -n | head -n1`"
    ]
    AC_SUBST([OESDK_TESTCASE_FLAGS], [$testcase_flags])
)

AC_ARG_ENABLE([json],
    AS_HELP_STRING([--enable-json], [Use json at runtime to configure fan packages.]))
AC_ARG_ENABLE([presence],
    AS_HELP_STRING([--disable-presence], [Disable fan presence package.]))
AC_ARG_ENABLE([control],
    AS_HELP_STRING([--disable-control], [Disable fan control package.]))
AC_ARG_ENABLE([cooling-type],
    AS_HELP_STRING([--disable-cooling-type], [Disable cooling-type package.]))
AC_ARG_ENABLE([monitor],
    AS_HELP_STRING([--disable-monitor], [Disable monitor]))

AM_CONDITIONAL([WANT_JSON], [test "x$enable_json" == "xyes"])
AM_CONDITIONAL([WANT_PRESENCE], [test "x$enable_presence" != "xno"])
AM_CONDITIONAL([WANT_CONTROL], [test "x$enable_control" != "xno"])
AM_CONDITIONAL([WANT_COOLING_TYPE], [test "x$enable_cooling_type" != "xno"])
AM_CONDITIONAL([WANT_MONITOR], [test "x$enable_monitor" != "xno"])

# Package specific checks.
AS_IF([test "x$enable_presence" != "xno"], [
    # Use runtime(json) config, otherwise default to compile time(yaml) config
    AM_COND_IF([WANT_JSON],
    [
        AC_CHECK_HEADER(nlohmann/json.hpp, ,
                [AC_MSG_ERROR([Could not find nlohmann/json.hpp... nlohmann/json package required])])
        # Set config flag for runtime json usage
        AC_DEFINE([PRESENCE_USE_JSON], [1], [Fan presence use runtime json configuration])
        AC_MSG_NOTICE([Fan presence json configuration usage enabled])
    ],
    [
        # Add optional yaml file argument
        AC_ARG_VAR(PRESENCE_CONFIG, [The fan presence config file.])

       AS_IF([test "x$PRESENCE_CONFIG" == "x"],
             [PRESENCE_CONFIG="\${top_srcdir}/presence/example/example.yaml"])

       AC_DEFINE_UNQUOTED([PRESENCE_CONFIG], ["$PRESENCE_CONFIG"],
                          [The fan presence config file.])

       AC_SUBST([PFPGEN],
                ["$PYTHON \${top_srcdir}/presence/pfpgen.py generate-cpp -i $PRESENCE_CONFIG"])
    ])
    AC_CONFIG_FILES([presence/Makefile])
])

AS_IF([test "x$enable_control" != "xno"], [
       # Add fan control Dbus attributes
       AC_ARG_VAR(CONTROL_BUSNAME, [The fan control busname to own])
       AS_IF([test "x$CONTROL_BUSNAME" == "x"],
             [CONTROL_BUSNAME="xyz.openbmc_project.Control.Thermal"])
       AC_DEFINE_UNQUOTED([CONTROL_BUSNAME], ["$CONTROL_BUSNAME"],
                          [The fan control busname to own])

       AC_ARG_VAR(CONTROL_OBJPATH, [The fan control root object path])
       AS_IF([test "x$CONTROL_OBJPATH" == "x"],
             [CONTROL_OBJPATH="/xyz/openbmc_project/control/thermal"])
       AC_DEFINE_UNQUOTED([CONTROL_OBJPATH], ["$CONTROL_OBJPATH"],
                          [The fan control root object path])

       AC_ARG_VAR(CONTROL_PERSIST_ROOT_PATH, [Root path for persisting zone property states])
       AS_IF([test "x$CONTROL_PERSIST_ROOT_PATH" == "x"],
             [CONTROL_PERSIST_ROOT_PATH="/var/lib/phosphor-fan-presence/control"])
       AC_DEFINE_UNQUOTED([CONTROL_PERSIST_ROOT_PATH], ["$CONTROL_PERSIST_ROOT_PATH"],
                          [Root path for persisting zone property states])

       # Add optional yaml file arguments
       AC_ARG_VAR(FAN_DEF_YAML_FILE,
                  [The fan definition file to use])
       AS_IF([test "x$FAN_DEF_YAML_FILE" == "x"],
             [FAN_DEF_YAML_FILE="\${top_srcdir}/control/example/fans.yaml"])
       AC_DEFINE_UNQUOTED([FAN_DEF_YAML_FILE], ["$FAN_DEF_YAML_FILE"],
                          [The fan definition file to use])

       AC_ARG_VAR(FAN_ZONE_YAML_FILE,
                  [The fan zone definition file to use])
       AS_IF([test "x$FAN_ZONE_YAML_FILE" == "x"],
             [FAN_ZONE_YAML_FILE="\${top_srcdir}/control/example/zones.yaml"])
       AC_DEFINE_UNQUOTED([FAN_ZONE_YAML_FILE], ["$FAN_ZONE_YAML_FILE"],
                          [The fan zone definition file to use])

      AC_ARG_VAR(ZONE_EVENTS_YAML_FILE,
                 [The zone events definition file to use])
      AS_IF([test "x$ZONE_EVENTS_YAML_FILE" == "x"],
             [ZONE_EVENTS_YAML_FILE="\${top_srcdir}/control/example/events.yaml"])
      AC_DEFINE_UNQUOTED([ZONE_EVENTS_YAML_FILE], ["$ZONE_EVENTS_YAML_FILE"],
                         [The zone events definition file to use])

      AC_ARG_VAR(ZONE_CONDITIONS_YAML_FILE,
                 [The zone conditions definition file to use])
      AS_IF([test "x$ZONE_CONDITIONS_YAML_FILE" == "x"],
             [ZONE_CONDITIONS_YAML_FILE="\${top_srcdir}/control/example/zone_conditions.yaml"])
      AC_DEFINE_UNQUOTED([ZONE_CONDITIONS_YAML_FILE], ["$ZONE_CONDITIONS_YAML_FILE"],
                         [The zone conditions definition file to use])

      AC_SUBST([GEN_FAN_ZONE_DEFS],
               ["$PYTHON \${top_srcdir}/control/gen-fan-zone-defs.py \
                         -f $FAN_DEF_YAML_FILE \
                         -z $FAN_ZONE_YAML_FILE \
                         -e $ZONE_EVENTS_YAML_FILE \
                         -c $ZONE_CONDITIONS_YAML_FILE"])
      AC_CONFIG_FILES([control/Makefile])
])

AS_IF([test "x$enable_cooling_type" != "xno"], [
       AC_CONFIG_FILES([cooling-type/Makefile])
])
AS_IF([test "x$enable_monitor" != "xno"], [

       AC_ARG_VAR(FAN_MONITOR_YAML_FILE,
                  [The fan monitor definition file to use])
       AS_IF([test "x$FAN_MONITOR_YAML_FILE" == "x"],
             [FAN_MONITOR_YAML_FILE="\${top_srcdir}/monitor/example/monitor.yaml"])
       AC_DEFINE_UNQUOTED([FAN_MONITOR_YAML_FILE], ["$FAN_MONITOR_YAML_FILE"],
                          [The fan monitor definition file to use])

       AC_SUBST([GEN_FAN_MONITOR_DEFS],
                ["$PYTHON \${top_srcdir}/monitor/gen-fan-monitor-defs.py \
                         -m $FAN_MONITOR_YAML_FILE"])

       AC_CONFIG_FILES([monitor/Makefile])
])

# Create configured output
AC_CONFIG_FILES([Makefile sdevent/test/Makefile evdevpp/test/Makefile presence/test/Makefile])
AC_OUTPUT