#include "compiler/CCompiler.h"
#include "compiler/CParser.h"
#include "compiler/CPrep.h"
#include "compiler/CompilerTools.h"
#include "compiler/CodeGen.h"
#include "compiler/CodeGenOptPPC.h"
#include "compiler/IrOptimizer.h"
#include "compiler/types.h"
#include "pref_structs.h"

Boolean systemHandles;

static Boolean using_license_manager;
Boolean crippled;
SInt32 license_cookie;
CompilerLinkerParamBlk cparams;

static void get_extension(ConstStringPtr src, char *dst) {
    int ep;

    dst[0] = 0;
    for (ep = src[0]; src[ep] != '.'; ep--) {}

    if (ep >= 2) {
        int x;
        for (x = 0; (x + ep) <= src[0]; x++)
            dst[x] = src[x + ep];
        dst[x] = 0;
    }
}

static int setup_param_block(CWPluginContext context) {
    static char target_name[128];
    CWTargetInfo tinfo;

    memset(&cparams, 0, sizeof(CompilerLinkerParamBlk));
    cparams.context = context;

    if (CWGetPluginRequest(context, &cparams.request) != cwNoErr)
        return 0;
    if (CWGetAPIVersion(context, &cparams.version) != cwNoErr)
        return 0;
    if (CWGetProjectFile(context, &cparams.targetfile) != cwNoErr)
        return 0;
    if (CWGetProjectFileCount(context, &cparams.numfiles) != cwNoErr)
        return 0;
    if (CWGetMainFileNumber(context, &cparams.whichfile) != cwNoErr)
        return 0;
    if (CWGetMainFileSpec(context, &cparams.sourcefile) != cwNoErr)
        return 0;
    if (CWGetMainFileText(context, &cparams.sourcetext, &cparams.sourcetextsize) != cwNoErr)
        return 0;
    if (CWIsPrecompiling(context, &cparams.precompile) != cwNoErr)
        return 0;
    if (CWIsAutoPrecompiling(context, &cparams.autoprecompile) != cwNoErr)
        return 0;
    if (CWIsPreprocessing(context, &cparams.preprocess) != cwNoErr)
        return 0;
    if (CWIsGeneratingDebugInfo(context, &cparams.SYMinfo) != cwNoErr)
        return 0;
    if (CWIsCachingPrecompiledHeaders(context, &cparams.caching_includes) != cwNoErr)
        return 0;
    if (CWGetBrowseOptions(context, &cparams.browseoptions) != cwNoErr)
        return 0;
    cparams.recordbrowseinfo = cparams.preprocess == 0;
    if (CWGetMainFileID(context, &cparams.browserfileID) != cwNoErr)
        return 0;
    if (CWGetTargetInfo(context, &tinfo) != cwNoErr)
        return 0;

    cparams.targetOS = tinfo.targetOS;
    cparams.targetCPU = tinfo.targetCPU;
    cparams.idetargetname = target_name;
    return CWGetTargetName(context, target_name, sizeof(target_name)) == cwNoErr;
}

static short store_compile_results(void) {
    CWResult result;

    if (cparams.objectdata)
        CWSecretAttachHandle(cparams.context, cparams.objectdata, &cparams.object.objectdata);
    if (cparams.browsedata)
        CWSecretAttachHandle(cparams.context, cparams.browsedata, &cparams.object.browsedata);

    if (cparams.preprocess) {
        if (cparams.object.objectdata) {
            CWNewTextDocumentInfo docinfo;
            memset(&docinfo, 0, sizeof(CWNewTextDocumentInfo));
            docinfo.text = cparams.object.objectdata;
            cparams.object.objectdata = NULL;
            result = CWCreateNewTextDocument(cparams.context, &docinfo);
        }
    } else {
        result = CWStoreObjectData(cparams.context, cparams.whichfile, &cparams.object);
    }

    return result;
}

static void initialize_compiler_options(CompilerLinkerParamBlk *params) {
    static PFrontEndC pFrontEnd;
    PWarningC pWarningC;
    PGlobalOptimizer pGlobalOptimizer;
    Handle prefsdata;
    char extension[256];

    memclrw(&copts, sizeof(CompilerLinkerOptions));

    CWSecretGetNamedPreferences(cparams.context, "C/C++ Compiler", &prefsdata);
    pFrontEnd = *((PFrontEndC *) *prefsdata);

    copts.littleendian = 0;
    copts.cplusplus = 1;
    copts.objective_c = pFrontEnd.objective_c;
    get_extension(params->sourcefile.name, extension);
    if (!strcmp(extension, ".c") || !strcmp(extension, ".h") || !strcmp(extension, ".pch")) {
        copts.cplusplus = pFrontEnd.cplusplus;
    } else if (!strcmp(extension, ".m")) {
        copts.cplusplus = pFrontEnd.cplusplus;
        copts.objective_c = 1;
    } else if (!strcmp(extension, ".mm") || !strcmp(extension, ".M")) {
        copts.cplusplus = 1;
        copts.objective_c = 1;
    }

    copts.checkprotos = pFrontEnd.checkprotos;
    copts.ARMconform = pFrontEnd.arm;
    copts.ARMscoping = pFrontEnd.arm;
    copts.trigraphs = pFrontEnd.trigraphs;
    copts.onlystdkeywords = pFrontEnd.onlystdkeywords;
    copts.enumsalwaysint = pFrontEnd.enumsalwaysint;
    copts.mpwc_relax = pFrontEnd.mpwpointerstyle;
    copts.ANSIstrict = pFrontEnd.ansistrict;
    copts.mpwc_newline = pFrontEnd.mpwcnewline;
    copts.exceptions = pFrontEnd.enableexceptions;
    copts.dont_reuse_strings = pFrontEnd.dontreusestrings;
    copts.poolstrings = pFrontEnd.poolstrings;
    copts.dontinline = pFrontEnd.dontinline;
    copts.RTTI = pFrontEnd.useRTTI;
    copts.oldprefixname = pFrontEnd.oldprefixname;
    copts.multibyteaware = pFrontEnd.multibyteaware;
    copts.unsigned_char = pFrontEnd.unsignedchars;
    copts.auto_inline = pFrontEnd.autoinline;
    copts.direct_to_som = pFrontEnd.direct_to_som;
    copts.som_env_check = pFrontEnd.som_env_check;
    copts.booltruefalse = pFrontEnd.booltruefalse;
    copts.alwaysinline = pFrontEnd.alwaysinline;
    copts.inlinelevel = pFrontEnd.inlinelevel;
    copts.wchar_type = pFrontEnd.wchar_type;
    copts.ecplusplus = pFrontEnd.ecplusplus;
    copts.defer_codegen = pFrontEnd.defer_codegen;
    copts.inlinemaxsize = 512;
    copts.inlinemaxtotalsize = 100000;

    CWSecretGetNamedPreferences(cparams.context, "C/C++ Warnings", &prefsdata);
    pWarningC = *((PWarningC *) *prefsdata);

    copts.warn_illpragma = pWarningC.warn_illpragma;
    copts.warn_emptydecl = pWarningC.warn_emptydecl;
    copts.warn_possunwant = pWarningC.warn_possunwant;
    copts.warn_unusedvar = pWarningC.warn_unusedvar;
    copts.warn_unusedarg = pWarningC.warn_unusedarg;
    copts.warn_extracomma = pWarningC.warn_extracomma;
    copts.pedantic = pWarningC.pedantic;
    copts.warningerrors = pWarningC.warningerrors;
    copts.warn_hidevirtual = pWarningC.warn_hidevirtual;
    copts.warn_implicitconv = pWarningC.warn_implicitconv;
    copts.warn_notinlined = pWarningC.warn_notinlined;
    copts.warn_structclass = pWarningC.warn_structclass;

    CWSecretGetNamedPreferences(cparams.context, "PPC Global Optimizer", &prefsdata);
    pGlobalOptimizer = *((PGlobalOptimizer *) *prefsdata);

    copts.optimizationlevel = pGlobalOptimizer.optimizationlevel;
    copts.optimizesize = (Boolean) (pGlobalOptimizer.optfor == 1);

    copts.crippled = crippled;
    copts.unrollfactor = 8;
    copts.unrollinstrfactor = 100;
    copts.filesyminfo = params->SYMinfo;
    copts.appltype = CWFOURCHAR('C', 'W', 'I', 'E');
    copts.headtype = CWFOURCHAR('M', 'M', 'C', 'H');
    copts.texttype = CWFOURCHAR('T','E','X','T');
}

static void GetLicense(void) {
    if (!license_cookie) {
        crippled = 1;
        CWCheckoutLicense(cparams.context, "MacOS_Plugins_MacOS_Unlimited", "7", 2, NULL, &license_cookie);
        if (license_cookie) {
            CWCheckinLicense(cparams.context, license_cookie);
            crippled = 0;
        }

        CWCheckoutLicense(cparams.context, "MacOS_Plugins_MacOS_Limited", "7", 0, NULL, &license_cookie);
        using_license_manager = 1;
    }
}

static void ReleaseLicense(void) {
    if (license_cookie && using_license_manager)
        CWCheckinLicense(cparams.context, license_cookie);
    using_license_manager = 0;
    license_cookie = 0;
}

CWPLUGIN_ENTRY(MWC_main)(CWPluginContext context) {
    CWResult result;
    SInt32 request;

    result = cwNoErr;
    CWGetPluginRequest(context, &request);

    switch (request) {
        case reqInitialize:
            cparams.context = context;
            license_cookie = 0;
            CodeGen_InitCompiler();
            break;
        case reqTerminate:
            cparams.context = context;
            CodeGen_TermCompiler();
            ReleaseLicense();
            break;
        case reqCompile:
            setup_param_block(context);
            GetLicense();
            if (license_cookie) {
                initialize_compiler_options(&cparams);
                CodeGen_UpdateOptimizerOptions();
                CodeGen_InitBackEndOptions();
                CodeGen_UpdateOptimizerOptions();
                CodeGen_UpdateBackEndOptions();
                if (C_Compiler(&cparams))
                    result = store_compile_results();
                else
                    result = cwErrRequestFailed;
            } else {
                result = cwErrSilent;
            }
            break;
    }

    return CWDonePluginRequest(context, result);
}

void PrintProgressFunction(const char *str) {
    char buf[96];
    sprintf(buf, "Compiling function:\t%.64s", str);
    CWShowStatus(cparams.context, buf, "");
}