--[[
Copyright © 2015, Seth VanHeulen
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Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
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2. Redistributions in binary form must reproduce the above copyright
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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--]]

_addon.name = 'VisibleFavor'
_addon.version = '1.0.0'
_addon.command = 'visiblefavor'
_addon.commands = {'vf'}
_addon.author = 'Seth VanHeulen (Acacia@Odin)'

config = require('config')
require('chat')
require('pack')

model_to_effect = {
    [0x10] = 0x66, -- Carbuncle
    [0x11] = 0x67, -- Fenrir
    [0x12] = 0x60, -- Ifrit
    [0x13] = 0x63, -- Titan
    [0x14] = 0x65, -- Leviathan
    [0x15] = 0x62, -- Garuda
    [0x16] = 0x61, -- Shiva
    [0x17] = 0x64, -- Ramuh
    [0x19] = 0x67, -- Diabolos
    [0x1c] = 0x66, -- Cait Sith
}

refresh = true
pet_index = 0
favor_buff = false

defaults = {}
defaults.enabled = true
defaults.display = 'favor'
defaults.effect = 'debuff'

settings = config.load(defaults)

function check_incoming_chunk(id, original, modified, injected, blocked)
    if id == 0x037 then
        refresh = true
    elseif settings.enabled and id == 0x00E then
        if refresh and settings.display ~= 'all' then
            local player = windower.ffxi.get_player()
            pet_index = windower.ffxi.get_mob_by_index(player.index).pet_index
            if settings.display == 'favor' then
                for _,buff_id in pairs(player.buffs) do
                    if buff_id == 431 then
                        favor_buff = true
                        break
                    end
                    favor_buff = false
                end
            end
        end
        local npc_index = original:unpack('H', 9)
        if settings.display == 'all' or settings.display == 'self' and pet_index == npc_index or settings.display == 'favor' and favor_buff and pet_index == npc_index then
            local npc_model = original:unpack('H', 0x33)
            if model_to_effect[npc_model] then
                local effect = model_to_effect[npc_model]
                if settings.effect == 'debuff' then
                    effect = effect + 8
                end
                return modified:sub(1, 38) .. string.char(effect) .. modified:sub(40)
            end
        end
    end
end

function visiblefavor_command(...)
    local arg = {...}
    for k,v in pairs(arg) do
        arg[k] = arg[k]:lower()
    end
    if #arg == 1 and arg[1] == 'toggle' then
        settings.enabled = not settings.enabled
    elseif #arg == 1 and arg[1] == 'on' then
        settings.enabled = true
    elseif #arg == 1 and arg[1] == 'off' then
        settings.enabled = false
    elseif #arg == 2 and arg[1] == 'display' and arg[2] == 'all' then
        settings.display = 'all'
    elseif #arg == 2 and arg[1] == 'display' and arg[2] == 'self' then
        settings.display = 'self'
    elseif #arg == 2 and arg[1] == 'display' and arg[2] == 'favor' then
        settings.display = 'favor'
    elseif #arg == 2 and arg[1] == 'effect' and arg[2] == 'buff' then
        settings.effect = 'buff'
    elseif #arg == 2 and arg[1] == 'effect' and arg[2] == 'debuff' then
        settings.effect = 'debuff'
    else
        windower.add_to_chat(167, 'Command usage:')
        windower.add_to_chat(167, '    vf toggle/on/off')
        windower.add_to_chat(167, '    vf display all/self/favor')
        windower.add_to_chat(167, '    vf effect buff/debuff')
        return
    end
    windower.add_to_chat(207, 'VisibleFavor: enable = ' .. (settings.enabled and 'yes':color(204) or 'no':color(167)) .. ', display = ' .. settings.display:color(200) .. ', effect = ' .. settings.effect:color(200))
    settings:save()
end

windower.register_event('incoming chunk', check_incoming_chunk)
windower.register_event('addon command', visiblefavor_command)