(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2014 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * 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; version 2 of the License

 *

 * 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

 *)

{$INCLUDE "options.inc"}

unit uLocale;

interface

uses uTypes;

const MAX_EVENT_STRINGS = 100;

procedure LoadLocale(FileName: shortstring);

function  FormatPChar(fmt: PChar; arg: PChar): PChar;

function  Format(fmt: shortstring; var arg: shortstring): shortstring;

function  FormatA(fmt: PChar; arg: ansistring): ansistring;

function  GetEventString(e: TEventId): PChar;

procedure initModule;

procedure freeModule;

{$IFDEF HWLIBRARY}

procedure LoadLocaleWrapper(str: pchar); cdecl; export;

{$ENDIF}

implementation

uses uRandom, uVariables, uDebug, uPhysFSLayer, sysutils, uUtils;

var trevt: array[TEventId] of array [0..Pred(MAX_EVENT_STRINGS)] of PChar;

    trevt_n: array[TEventId] of integer;

procedure LoadLocale(FileName: shortstring);

var s: PChar = nil;

    sc: PChar;

    f: pfsFile;

    a, b, c: LongInt;

    first: array[TEventId] of boolean;

    e: TEventId;

begin

for e:= Low(TEventId) to High(TEventId) do

    first[e]:= true;

f:= pfsOpenRead(FileName);

TryDo(f <> nil, 'Cannot load locale "' + FileName + '"', false);

if f <> nil then

    begin

    while not pfsEof(f) do

        begin

        pfsReadLnA(f, s);

        if (StrLength(s) > 0) and (s[0] >= '0') and (s[0] <= '9') then

            begin

            TryDo(StrLength(s) > 6, 'Load locale: empty string', true);

            val(s[0]+s[1], a, c);

            TryDo(c = 0, 'Load locale: numbers should be two-digit: ' + s, true);

            TryDo(s[2] = ':', 'Load locale: ":" expected', true);

            val(s[3]+s[4], b, c);

            TryDo(c = 0, 'Load locale: numbers should be two-digit' + s, true);

            TryDo(s[5] = '=', 'Load locale: "=" expected', true);

            sc:= StrAlloc(StrLength(s) - 5);

            StrCopy(sc, @s[6]);

            case a of

                0: if (b >=0) and (b <= ord(High(TAmmoStrId))) then

                    trammo[TAmmoStrId(b)]:= sc;

                1: if (b >=0) and (b <= ord(High(TMsgStrId))) then

                    trmsg[TMsgStrId(b)]:= sc;

                2: if (b >=0) and (b <= ord(High(TEventId))) then

                    begin

                    TryDo(trevt_n[TEventId(b)] < MAX_EVENT_STRINGS, 'Too many event strings in ' + IntToStr(a) + ':' + IntToStr(b), false);

                    if first[TEventId(b)] then

                        begin

                        trevt_n[TEventId(b)]:= 0;

                        first[TEventId(b)]:= false;

                        end;

                    trevt[TEventId(b)][trevt_n[TEventId(b)]]:= sc;

                    inc(trevt_n[TEventId(b)]);

                    end;

                3: if (b >=0) and (b <= ord(High(TAmmoStrId))) then

                    trammoc[TAmmoStrId(b)]:= sc;

                4: if (b >=0) and (b <= ord(High(TAmmoStrId))) then

                    trammod[TAmmoStrId(b)]:= sc;

                5: if (b >=0) and (b <= ord(High(TGoalStrId))) then

                    trgoal[TGoalStrId(b)]:= sc;

            end;

            end;

        StrDispose(s);

        end;

   pfsClose(f);

   end;

end;

function GetEventString(e: TEventId): PChar;

begin

    if trevt_n[e] = 0 then // no messages for this event type?

        GetEventString:= '*missing translation*'

    else

        GetEventString:= trevt[e][GetRandom(trevt_n[e])]; // Pick a random message and return it

end;

function FormatPChar(fmt: PChar; arg: PChar): PChar;

var

    s: shortstring;

begin

    s:= arg;

    FormatPChar:= Str2PChar(FormatA(fmt, s));

end;

function Format(fmt: shortstring; var arg: shortstring): shortstring;

var i: LongInt;

begin

i:= Pos('%1', fmt);

if i = 0 then

    Format:= fmt

else

    Format:= copy(fmt, 1, i - 1) + arg + Format(copy(fmt, i + 2, Length(fmt) - i - 1), arg)

end;

function FormatA(fmt: PChar; arg: ansistring): ansistring;

var i: LongInt;

    s: ansistring;

begin

s:= fmt;

i:= Pos('%1', s);

if i = 0 then

    FormatA:= s

else

    FormatA:= copy(s, 1, i - 1) + arg + FormatA(PChar(copy(s, i + 2, Length(s) - i - 1)), arg)

end;

{$IFDEF HWLIBRARY}

procedure LoadLocaleWrapper(str: pchar); cdecl; export;

begin

    LoadLocale(Strpas(str));

end;

{$ENDIF}

procedure initModule;

var e: TEventId;

    i: LongInt;

begin

    for e:= Low(TEventId) to High(TEventId) do

        for i:= 0 to Pred(MAX_EVENT_STRINGS) do

            trevt[e][i]:= nil;

end;

procedure freeModule;

var e: TEventId;

    i: LongInt;

begin

    for e:= Low(TEventId) to High(TEventId) do

        for i:= 0 to Pred(trevt_n[e]) do

            StrDispose(trevt[e][i]);

end;

end.