#include "compiler/common.h"
#include "compiler.h"
#include "compiler/types.h"
#include "pref_structs.h"
#include "compiler/CompilerTools.h"
#include "compiler/CPrep.h"

Boolean systemHandles;

static Boolean using_license_manager;
Boolean crippled;
SInt32 license_cookie;
CParams 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(CParams));
    cparams.context = context;

    if (CWGetPluginRequest(context, &cparams.pluginRequest) != cwNoErr)
        return 0;
    if (CWGetAPIVersion(context, &cparams.apiVersion) != cwNoErr)
        return 0;
    if (CWGetProjectFile(context, &cparams.projectFile) != cwNoErr)
        return 0;
    if (CWGetProjectFileCount(context, &cparams.projectFileCount) != cwNoErr)
        return 0;
    if (CWGetMainFileNumber(context, &cparams.mainFileNumber) != cwNoErr)
        return 0;
    if (CWGetMainFileSpec(context, &cparams.mainFileSpec) != cwNoErr)
        return 0;
    if (CWGetMainFileText(context, &cparams.mainFileText, &cparams.mainFileTextLength) != cwNoErr)
        return 0;
    if (CWIsPrecompiling(context, &cparams.isPrecompiling) != cwNoErr)
        return 0;
    if (CWIsAutoPrecompiling(context, &cparams.isAutoPrecompiling) != cwNoErr)
        return 0;
    if (CWIsPreprocessing(context, &cparams.isPreprocessing) != cwNoErr)
        return 0;
    if (CWIsGeneratingDebugInfo(context, &cparams.isGeneratingDebugInfo) != cwNoErr)
        return 0;
    if (CWIsCachingPrecompiledHeaders(context, &cparams.isCachingPrecompiledHeaders) != cwNoErr)
        return 0;
    if (CWGetBrowseOptions(context, &cparams.browseOptions) != cwNoErr)
        return 0;
    cparams.field276 = cparams.isPreprocessing == 0;
    if (CWGetMainFileID(context, &cparams.mainFileID) != cwNoErr)
        return 0;
    if (CWGetTargetInfo(context, &tinfo) != cwNoErr)
        return 0;

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

static short store_compile_results() {
    CWResult result;

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

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

    return result;
}

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

    memclrw(&copts, sizeof(COpts));

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

    copts.little_endian = 0;
    copts.cplusplus = 1;
    copts.objective_c = pFrontEnd.objective_c;
    get_extension(params->mainFileSpec.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.require_prototypes = pFrontEnd.checkprotos;
    copts.ARM_conform = pFrontEnd.arm;
    copts.ARM_scoping = pFrontEnd.arm;
    copts.trigraphs = pFrontEnd.trigraphs;
    copts.only_std_keywords = pFrontEnd.onlystdkeywords;
    copts.enumsalwaysint = pFrontEnd.enumsalwaysint;
    copts.mpwc_relax = pFrontEnd.mpwpointerstyle;
    copts.ANSI_strict = pFrontEnd.ansistrict;
    copts.mpwc_newline = pFrontEnd.mpwcnewline;
    copts.exceptions = pFrontEnd.enableexceptions;
    copts.dont_reuse_strings = pFrontEnd.dontreusestrings;
    copts.pool_strings = pFrontEnd.poolstrings;
    copts.dont_inline = pFrontEnd.dontinline;
    copts.useRTTI = pFrontEnd.useRTTI;
    copts.oldprefixname = pFrontEnd.oldprefixname;
    copts.multibyteaware = pFrontEnd.multibyteaware;
    copts.unsignedchars = pFrontEnd.unsignedchars;
    copts.autoinline = pFrontEnd.autoinline;
    copts.direct_to_som = pFrontEnd.direct_to_som;
    copts.som_env_check = pFrontEnd.som_env_check;
    copts.booltruefalse = pFrontEnd.booltruefalse;
    copts.always_inline = pFrontEnd.alwaysinline;
    copts.inlinelevel = pFrontEnd.inlinelevel;
    copts.wchar_type = pFrontEnd.wchar_type;
    copts.ecplusplus = pFrontEnd.ecplusplus;
    copts.defer_codegen = pFrontEnd.defer_codegen;
    copts.inline_max_size = 512;
    copts.inline_max_total_size = 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.optimize_for_size = (Boolean) (pGlobalOptimizer.optfor == 1);

    copts.crippled = crippled;
    copts.loop_unroll_count = 8;
    copts.loop_unroll_size_threshold = 100;
    copts.isGeneratingDebugInfo = params->isGeneratingDebugInfo;
    copts.pchCreator = CWFOURCHAR('C','W','I','E');
    copts.pchType = CWFOURCHAR('M','M','C','H');
    copts.text = CWFOURCHAR('T','E','X','T');
}

static void GetLicense() {
    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() {
    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, "");
}