(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 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

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 *)

{$INCLUDE "options.inc"}

unit uLocale;

interface

uses uTypes;

const MAX_EVENT_STRINGS = 255;

const MAX_FORMAT_STRING_SYMBOLS = 9;

procedure LoadLocale(FileName: shortstring);

function  Format(fmt: shortstring; args: array of shortstring): shortstring;

function  FormatA(fmt: ansistring; args: array of ansistring): ansistring;

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

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

function  GetEventString(e: TEventId): ansistring;

{$IFDEF HWLIBRARY}

procedure LoadLocaleWrapper(path: pchar; userpath: pchar; filename: pchar); cdecl; export;

{$ENDIF}

implementation

uses uRandom, uUtils, uVariables, uDebug, uPhysFSLayer;

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

    trevt_n: array[TEventId] of integer;

procedure LoadLocale(FileName: shortstring);

var s: ansistring;

    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);

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

s:= '';

if f <> nil then

    begin

    while not pfsEof(f) do

        begin

        pfsReadLnA(f, s);

        if Length(s) = 0 then

            continue;

        if (s[1] < '0') or (s[1] > '9') then

            continue;

        checkFails(Length(s) > 6, 'Load locale: empty string', true);

        {$IFNDEF PAS2C}

        val(s[1]+s[2], a, c);

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

        val(s[4]+s[5], b, c);

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

        {$ELSE}

        val(s[1]+s[2], a);

        val(s[4]+s[5], b);

        {$ENDIF}

        checkFails(s[3] = ':', 'Load locale: ":" expected', true);

        checkFails(s[6] = '=', 'Load locale: "=" expected', true);

        if not allOK then exit;

        Delete(s, 1, 6);

        case a of

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

                trammo[TAmmoStrId(b)]:= s;

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

                trmsg[TMsgStrId(b)]:= s;

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

                begin

                checkFails(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)]]:= s;

                inc(trevt_n[TEventId(b)]);

                end;

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

                trammoc[TAmmoStrId(b)]:= s;

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

                trammod[TAmmoStrId(b)]:= s;

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

                trgoal[TGoalStrId(b)]:= s;

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

                trcmd[TCmdHelpStrId(b)]:= s;

           end;

       end;

   pfsClose(f);

   end;

end;

function GetEventString(e: TEventId): ansistring;

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;

// Format the string fmt.

// Take a shortstring with placeholders %1, %2, %3, etc. and replace

// them with the corresponding elements of an array with up to

// MAX_FORMAT_STRING_SYMBOLS. Important! Each placeholder can only be

// used exactly once and numbers MUST NOT be skipped (e.g. using %1 and %3

// but not %2.

function Format(fmt: shortstring; args: array of shortstring): shortstring;

var i, p: LongInt;

tempstr: shortstring;

begin

tempstr:= fmt;

for i:=0 to MAX_FORMAT_STRING_SYMBOLS - 1 do

    begin

        p:= Pos('%'+IntToStr(i+1), tempstr);

        if (p = 0) or (i >= Length(args)) then

            break

        else

            begin

            delete(tempstr, p, 2);

            insert(args[i], tempstr, p);

            end;

    end;

Format:= tempstr;

end;

// Same as Format, but for ansistring

function FormatA(fmt: ansistring; args: array of ansistring): ansistring;

var i, p: LongInt;

tempstr: ansistring;

begin

tempstr:= fmt;

for i:=0 to MAX_FORMAT_STRING_SYMBOLS - 1 do

    begin

        p:= Pos('%'+IntToStr(i+1), tempstr);

        if (p = 0) or (i >= Length(args)) then

            break

        else

            begin

            delete(tempstr, p, 2);

            insert(args[i], tempstr, p);

            end;

    end;

FormatA:= tempstr;

end;

// Same as Format above, but with only one placeholder %1, replaced by arg.

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

begin

    Format:= Format(fmt, [arg]);

end;

// Same as above, but for ansistring

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

begin

    FormatA:= FormatA(fmt, [arg]);

end;

{$IFDEF HWLIBRARY}

procedure LoadLocaleWrapper(path: pchar; userpath: pchar; filename: pchar); cdecl; export;

begin

    PathPrefix := Strpas(path);

    UserPathPrefix := Strpas(userpath);

    //normally this var set in preInit of engine

    allOK := true;

    uVariables.initModule;

    PathPrefix:= PathPrefix + #0;

    UserPathPrefix:= UserPathPrefix + #0;

    uPhysFSLayer.initModule(@PathPrefix[1], @UserPathPrefix[1]);

    PathPrefix:= copy(PathPrefix, 1, length(PathPrefix) - 1);

    UserPathPrefix:= copy(UserPathPrefix, 1, length(UserPathPrefix) - 1);

    LoadLocale(Strpas(filename));

    uPhysFSLayer.freeModule;

    uVariables.freeModule;

end;

{$ENDIF}

end.