/**
 * Scout - The Amiga System Monitor
 *
 *------------------------------------------------------------------
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * You must not use this source code to gain profit of any kind!
 *
 *------------------------------------------------------------------
 *
 * @author Andreas Gelhausen
 * @author Richard Körber <rkoerber@gmx.de>
 */

#include "system_headers.h"

struct PortsCallbackUserData {
    APTR ud_List;
    ULONG ud_Count;
};

static __asm __saveds LONG portslist_con2func(register __a2 Object *obj, register __a1 struct NList_ConstructMessage *msg, register __a0 struct Hook *hook)
{
    return AllocListEntry(msg->pool, msg->entry, sizeof(struct PortEntry));
}

MakeHook(portslist_con2hook, portslist_con2func);

static __asm __saveds LONG portslist_des2func(register __a2 Object *obj, register __a1 struct NList_DestructMessage *msg, register __a0 struct Hook *hook)
{
    FreeListEntry(msg->pool, &msg->entry);

    return 0;
}

MakeHook(portslist_des2hook, portslist_des2func);

static __asm __saveds LONG portslist_dsp2func(register __a2 Object *obj, register __a1 struct NList_DisplayMessage *msg, register __a0 struct Hook *hook)
{
    struct PortEntry *pe = (struct PortEntry *)msg->entry;

    if (pe) {
        msg->strings[0] = pe->pe_Address;
        msg->strings[1] = pe->pe_Name;
        msg->strings[2] = pe->pe_Pri;
        msg->strings[3] = pe->pe_Flags;
        msg->strings[4] = pe->pe_SigBit;
        msg->strings[5] = pe->pe_SigTask;
    } else {
        msg->strings[0] = MUIX_B "Address";
        msg->strings[1] = MUIX_B "ln_Name";
        msg->strings[2] = MUIX_B "ln_Pri";
        msg->strings[3] = MUIX_B "mp_Flags";
        msg->strings[4] = MUIX_B "mp_SigBit";
        msg->strings[5] = MUIX_B "mp_SigTask";
    }

    return 0;
}

MakeHook(portslist_dsp2hook, portslist_dsp2func);

static LONG portslist_cmp2colfunc( struct PortEntry *pe1,
                                   struct PortEntry *pe2,
                                   ULONG column )
{
    LONG pri1, pri2;

    switch (column) {
        case 0: return stricmp(pe1->pe_Address, pe2->pe_Address);
        case 1: return stricmp(pe1->pe_Name, pe2->pe_Name);
        case 2: IsDec(pe1->pe_Pri, &pri1); IsDec(pe2->pe_Pri, &pri2); return pri2 - pri1;
        case 3: return stricmp(pe1->pe_Flags, pe2->pe_Flags);
        case 4: return stricmp(pe1->pe_SigBit, pe2->pe_SigBit);
        case 5: return stricmp(pe1->pe_SigTask, pe2->pe_SigTask);
    }
}

static __asm __saveds LONG portslist_cmp2func(register __a2 Object *obj, register __a1 struct NList_CompareMessage *msg, register __a0 struct Hook *hook)
{
    LONG cmp;
    struct PortEntry *pe1, *pe2;
    ULONG col1, col2;

    pe1 = (struct PortEntry *)msg->entry1;
    pe2 = (struct PortEntry *)msg->entry2;
    col1 = msg->sort_type & MUIV_NList_TitleMark_ColMask;
    col2 = msg->sort_type2 & MUIV_NList_TitleMark2_ColMask;

    if (msg->sort_type == MUIV_NList_SortType_None) return 0;

    if (msg->sort_type & MUIV_NList_TitleMark_TypeMask) {
        cmp = portslist_cmp2colfunc(pe2, pe1, col1);
    } else {
        cmp = portslist_cmp2colfunc(pe1, pe2, col1);
    }

    if (cmp != 0 || col1 == col2) return cmp;

    if (msg->sort_type2 & MUIV_NList_TitleMark2_TypeMask) {
        cmp = portslist_cmp2colfunc(pe2, pe1, col2);
    } else {
        cmp = portslist_cmp2colfunc(pe1, pe2, col2);
    }

    return cmp;
}

MakeHook(portslist_cmp2hook, portslist_cmp2func);

static void ReceiveList( void (* callback)( struct PortEntry *pe, void *userData ),
                         void *userData )
{
    struct PortEntry *pe;

    if (pe = tbAllocVecPooled(globalPool, sizeof(struct PortEntry))) {
        if (SendDaemon("GetPortList")) {
            while (ReceiveDecodedEntry((UBYTE *)pe, sizeof(struct PortEntry))) {
                callback(pe, userData);
            }
        }

        tbFreeVecPooled(globalPool, pe);
    }
}

static void IterateList( void (* callback)( struct PortEntry *pe, void *userData ),
                         void *userData )
{
    struct PortEntry *pe;

    if (pe = tbAllocVecPooled(globalPool, sizeof(struct PortEntry))) {
        struct MsgPort *port;

        port = FIRSTPORT;

        while (port->mp_Node.ln_Succ) {
            pe->pe_Addr = port;

            _snprintf(pe->pe_Address, sizeof(pe->pe_Address), "$%08lx", port);
            stccpy(pe->pe_Name, nonetest(port->mp_Node.ln_Name), sizeof(pe->pe_Name));
            _snprintf(pe->pe_Pri, sizeof(pe->pe_Pri), "%4ld", port->mp_Node.ln_Pri);
            _snprintf(pe->pe_SigBit, sizeof(pe->pe_SigBit), "%2ld", port->mp_SigBit);
            stccpy(pe->pe_SigTask, nonetest(GetTaskName((struct Task *)port->mp_SigTask)), sizeof(pe->pe_SigTask));
            healstring(pe->pe_SigTask);
            switch(port->mp_Flags) {
                case PA_SIGNAL : stccpy(pe->pe_Flags, "signal", sizeof(pe->pe_Flags)); break;
                case PA_SOFTINT: stccpy(pe->pe_Flags, "softint", sizeof(pe->pe_Flags)); break;
                case PA_IGNORE : stccpy(pe->pe_Flags, "ignore", sizeof(pe->pe_Flags)); break;
            }

            callback(pe, userData);

            port = (struct MsgPort *)port->mp_Node.ln_Succ;
        }

        tbFreeVecPooled(globalPool, pe);
    }
}

static void UpdateCallback( struct PortEntry *pe,
                            void *userData )
{
    struct PortsCallbackUserData *ud = (struct PortsCallbackUserData *)userData;

    InsertSortedEntry(ud->ud_List, pe);
    ud->ud_Count++;
}

static void PrintCallback( struct PortEntry *pe,
                           void *userData )
{
    PrintFOneLine((BPTR)userData, " %s %-25.25s %4s   %3s   %-26.26s\n", pe->pe_Address, pe->pe_Name, pe->pe_Pri, pe->pe_SigBit, pe->pe_SigTask);
}

static void SendCallback( struct PortEntry *pe,
                          void *userData )
{
    SendEncodedEntry((UBYTE *)pe, sizeof(struct PortEntry));
}

static ULONG __saveds mNew( struct IClass *cl,
                            Object *obj,
                            struct opSet *msg )
{
    APTR portslist, portstext, portscount, updateButton, printButton, removeButton, priorityButton, moreButton, exitButton;

    if (obj = (Object *)DoSuperNew(cl, obj,
        MUIA_HelpNode, PortsText,
        MUIA_Window_ID, MakeID('P','O','R','T'),
        WindowContents, VGroup,

            Child, portslist = MyNListviewObject(MakeID('P','O','L','V'), "BAR,BAR,BAR P=" MUIX_R ",BAR P=" MUIX_C ",BAR P=" MUIX_C ",BAR", &portslist_con2hook, &portslist_des2hook, &portslist_dsp2hook, &portslist_cmp2hook, TRUE),
            Child, MyBelowListview(&portstext, &portscount),

            Child, MyVSpace(4),

            Child, HGroup, MUIA_Group_SameSize, TRUE,
                Child, updateButton   = MakeButton(txtUpdate),
                Child, printButton    = MakeButton(txtPrint),
                Child, removeButton   = MakeButton(txtRemove),
                Child, priorityButton = MakeButton(txtPriority),
                Child, moreButton     = MakeButton(txtMore),
                Child, exitButton     = MakeButton(txtExit),
            End,
        End,
        TAG_MORE, msg->ops_AttrList))
    {
        struct PortsWinData *pwd = INST_DATA(cl, obj);
        APTR parent;

        pwd->pwd_PortList = portslist;
        pwd->pwd_PortText = portstext;
        pwd->pwd_PortCount = portscount;
        pwd->pwd_RemoveButton = removeButton;
        pwd->pwd_PriorityButton = priorityButton;
        pwd->pwd_MoreButton = moreButton;

        parent = (APTR)GetTagData(MUIA_Window_ParentWindow, (ULONG)NULL, msg->ops_AttrList);

        set(obj, MUIA_Window_Title, MyGetWindowTitle("PORTS", pwd->pwd_Title, sizeof(pwd->pwd_Title)));
        set(obj, MUIA_Window_ActiveObject, portslist);
        set(removeButton, MUIA_Disabled, TRUE);
        set(priorityButton, MUIA_Disabled, TRUE);
        set(moreButton, MUIA_Disabled, TRUE);

        DoMethod(parent,         MUIM_Window_AddChildWindow, obj);
        DoMethod(obj,            MUIM_Notify, MUIA_Window_CloseRequest, TRUE,           MUIV_Notify_Application, 5, MUIM_Application_PushMethod, parent, 2, MUIM_Window_RemChildWindow, obj);
        DoMethod(portslist,      MUIM_Notify, MUIA_NList_Active,        MUIV_EveryTime, obj,                     1, MUIM_PortsWin_ListChange);
        DoMethod(portslist,      MUIM_Notify, MUIA_NList_DoubleClick,   MUIV_EveryTime, obj,                     1, MUIM_PortsWin_More);
        DoMethod(updateButton,   MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     1, MUIM_PortsWin_Update);
        DoMethod(printButton,    MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     1, MUIM_PortsWin_Print);
        DoMethod(removeButton,   MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     1, MUIM_PortsWin_Remove);
        DoMethod(moreButton,     MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     1, MUIM_PortsWin_More);
        DoMethod(priorityButton, MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     1, MUIM_PortsWin_Priority);
        DoMethod(exitButton,     MUIM_Notify, MUIA_Pressed,             FALSE,          obj,                     3, MUIM_Set, MUIA_Window_CloseRequest, TRUE);
        DoMethod(portslist,      MUIM_NList_Sort3, MUIV_NList_Sort3_SortType_1, MUIV_NList_SortTypeAdd_None, MUIV_NList_Sort3_SortType_Both);
    }

    return (ULONG)obj;
}

static ULONG __saveds mDispose( struct IClass *cl,
                                Object *obj,
                                struct opSet *msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);

    set(obj, MUIA_Window_Open, FALSE);
    DoMethod(pwd->pwd_PortList, MUIM_NList_Clear);

    return (DoSuperMethodA(cl, obj, msg));
}

static ULONG __saveds mUpdate( struct IClass *cl,
                               Object *obj,
                               Msg msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);
    struct PortsCallbackUserData ud;

    ApplicationSleep(TRUE);
    set(pwd->pwd_PortList, MUIA_NList_Quiet, TRUE);
    DoMethod(pwd->pwd_PortList, MUIM_NList_Clear);

    ud.ud_List = pwd->pwd_PortList;
    ud.ud_Count = 0;

    if (clientstate) {
        ReceiveList(UpdateCallback, &ud);
    } else {
        IterateList(UpdateCallback, &ud);
    }

    SetCountText(pwd->pwd_PortCount, ud.ud_Count);
    MySetContents(pwd->pwd_PortText, "");

    set(pwd->pwd_PortList, MUIA_NList_Quiet, FALSE);
    set(pwd->pwd_PortList, MUIA_NList_Active, MUIV_NList_Active_Off);
    set(pwd->pwd_PriorityButton, MUIA_Disabled, TRUE);
    set(pwd->pwd_RemoveButton, MUIA_Disabled, TRUE);
    set(pwd->pwd_MoreButton, MUIA_Disabled, TRUE);
    ApplicationSleep(FALSE);

    return 0;
}

static ULONG __saveds mPrint( struct IClass *cl,
                              Object *obj,
                              Msg msg )
{
    PrintPorts(NULL);

    return 0;
}

static ULONG __saveds mRemove( struct IClass *cl,
                               Object *obj,
                               Msg msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);
    struct PortEntry *pe;

    if (pe = (struct PortEntry *)GetActiveEntry(pwd->pwd_PortList)) {
        if (MyRequest(msgYesNo, msgWantToRemovePort, pe->pe_Name)) {
            MyDoCommand("RemovePort %s", pe->pe_Address);
            DoMethod(obj, MUIM_PortsWin_Update);
        }
    }

    return 0;
}

static ULONG __saveds mPriority( struct IClass *cl,
                                 Object *obj,
                                 Msg msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);
    struct PortEntry *pe;

    if (pe = (struct PortEntry *)GetActiveEntry(pwd->pwd_PortList)) {
        LONG pri;

        pri = atol(pe->pe_Pri);
        if (GetPriority(pe->pe_Name, &pri)) {
            if (MyDoCommand("SetPriority PORT %s %ld", pe->pe_Address, pri)) {
                _snprintf(pe->pe_Pri, sizeof(pe->pe_Pri), "%4ld", pri);
                RedrawActiveEntry(pwd->pwd_PortList);
            }
        }
    }

    return 0;
}

static ULONG __saveds mMore( struct IClass *cl,
                             Object *obj,
                             Msg msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);
    struct PortEntry *pe;

    if (pe = (struct PortEntry *)GetActiveEntry(pwd->pwd_PortList)) {
        APTR detailWin;

        if (detailWin = PortsDetailWindowObject,
                MUIA_Window_ParentWindow, obj,
                MUIA_Window_MaxChildWindowCount, (opts.SingleWindows) ? 1 : 0,
            End) {
            set(detailWin, MUIA_PortsDetailWin_Port, pe);
            set(detailWin, MUIA_Window_Open, TRUE);
        }
    }

    return 0;
}

static ULONG __saveds mListChange( struct IClass *cl,
                                   Object *obj,
                                   Msg msg )
{
    struct PortsWinData *pwd = INST_DATA(cl, obj);
    struct PortEntry *pe;

    if (pe = (struct PortEntry *)GetActiveEntry(pwd->pwd_PortList)) {
        MySetContents(pwd->pwd_PortText, "%s \"%s\"", pe->pe_Address, pe->pe_Name);
        set(pwd->pwd_PriorityButton, MUIA_Disabled, FALSE);
        set(pwd->pwd_RemoveButton, MUIA_Disabled, FALSE);
        if (!clientstate) set(pwd->pwd_MoreButton, MUIA_Disabled, FALSE);
    }

    return 0;
}

ULONG __asm __saveds PortsWinDispatcher( register __a0 struct IClass *cl,
                                         register __a2 Object *obj,
                                         register __a1 Msg msg )
{
    switch (msg->MethodID) {
        case OM_NEW:                   return (mNew(cl, obj, (APTR)msg));
        case OM_DISPOSE:               return (mDispose(cl, obj, (APTR)msg));
        case MUIM_PortsWin_Update:     return (mUpdate(cl, obj, (APTR)msg));
        case MUIM_PortsWin_Print:      return (mPrint(cl, obj, (APTR)msg));
        case MUIM_PortsWin_Remove:     return (mRemove(cl, obj, (APTR)msg));
        case MUIM_PortsWin_Priority:   return (mPriority(cl, obj, (APTR)msg));
        case MUIM_PortsWin_More:       return (mMore(cl, obj, (APTR)msg));
        case MUIM_PortsWin_ListChange: return (mListChange(cl, obj, (APTR)msg));
    }

    return (DoSuperMethodA(cl, obj, msg));
}

void PrintPorts( char *filename )
{
    BPTR handle;

    if (handle = HandlePrintStart(filename)) {
        PrintFOneLine(handle, "\n  Address  Name                       Pri SigBit SigTask\n\n");
        IterateList(PrintCallback, (void *)handle);
    }

    HandlePrintStop();
}

void SendPortList( void )
{
    IterateList(SendCallback, NULL);
}