--[[
LICENSE
    cargBags: An inventory framework addon for World of Warcraft

    Copyright (C) 2010  Constantin "Cargor" Schomburg <xconstruct@gmail.com>

    cargBags 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 (at your option) any later version.

    cargBags 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 cargBags; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

DESCRIPTION:
    Provides a searchbar for your containers.
    If you specify a frame as arg #2, it will serve as a clickable placeholder to open it

DEPENDENCIES
    mixins/textFilter.lua
]]

local _, ns = ...
local cargBags = ns.cargBags

local function apply(self, container, text)
    if(text == "" or not text) then
        container:ApplyToButtons(self.highlightFunction, true)
    else
        container:FilterForFunction(self.highlightFunction, self.currFilters)
    end
end

local function doSearch(self, text)
    if(type(text) == "string") then
        self:SetText(text)
    else
        text = self:GetText()
    end

    if(self.currFilters) then
        self.currFilters:Empty()
    end

    self.currFilters = self.parent.implementation:ParseTextFilter(text, self.currFilters, self.textFilters)

    if(self.isGlobal) then
        for _, container in pairs(self.parent.implementation.contByName) do
            apply(self, container, text)
        end
    else
        apply(self, self.parent, text)
    end

    --self.parent.implementation:OnEvent("BAG_UPDATE") -- shouldn't have to update bags, needs review
end

local function target_openSearch(target)
    target:Hide()
    target.search:Show()
end

local function target_closeSearch(search)
    search.target:Show()
    search:Hide()
end

local function onEscape(search)
    doSearch(search, "")
    search:ClearFocus()
    if(search.OnEscapePressed) then search:OnEscapePressed() end
end

local function onEnter(search)
    search:ClearFocus()
    if(search.OnEnterPressed) then search:OnEnterPressed() end
end

local function onHide(self)
    onEscape(self.Search)
end

cargBags:RegisterPlugin("SearchBar", function(self, target)
    local search = CreateFrame("EditBox", nil, self)
    search:SetFontObject(GameFontHighlight)
    self.Search = search

    search.Clear = onEscape
    search.DoSearch = search.doSearch

    local left = search:CreateTexture(nil, "BACKGROUND")
    left:SetTexture("Interface\\Common\\Common-Input-Border")
    left:SetTexCoord(0, 0.0625, 0, 0.625)
    left:SetWidth(8)
    left:SetHeight(20)
    left:SetPoint("LEFT", -5, 0)
    search.Left = left

    local right = search:CreateTexture(nil, "BACKGROUND")
    right:SetTexture("Interface\\Common\\Common-Input-Border")
    right:SetTexCoord(0.9375, 1, 0, 0.625)
    right:SetWidth(8)
    right:SetHeight(20)
    right:SetPoint("RIGHT", 0, 0)
    search.Right = right

    local center = search:CreateTexture(nil, "BACKGROUND")
    center:SetTexture("Interface\\Common\\Common-Input-Border")
    center:SetTexCoord(0.0625, 0.9375, 0, 0.625)
    center:SetHeight(20)
    center:SetPoint("RIGHT", right, "LEFT", 0, 0)
    center:SetPoint("LEFT", left, "RIGHT", 0, 0)
    search.Center = center

    search:SetScript("OnTextChanged", doSearch)
    search:SetScript("OnEscapePressed", onEscape)
    search:SetScript("OnEnterPressed", onEnter)
    self:HookScript("OnHide", onHide)

    if(target) then
        search:SetAutoFocus(true)
        search:SetAllPoints(target)
        search:Hide()

        target.search, search.target = search, target
        target:RegisterForClicks("anyUp")
        target:SetScript("OnClick", target_openSearch)
        search:SetScript("OnEditFocusLost", target_closeSearch)
    end

    return search
end)
