GuildOnTarget.lua

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--
-- ESO GuildOnTarget
--
-- This Add-on is not created by, affiliated with or sponsored by ZeniMax Media Inc. or its affiliates. 
-- The Elder Scrolls® and related logos are registered trademarks or trademarks of ZeniMax Media Inc. in the United States and/or other countries. 
-- All rights reserved
--
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local AddonInfo = {
  addon = "GuildOnTarget",
  version = "1.0",
  author = "Sophie Kuehn",
  savename = "GuildOnTarget"
}

local GOT = {}
GOT.guild = {}

-- localize calls to ESO API
local GetUnitType = GetUnitType
local GetUnitName = GetUnitName
local GetGuildMemberInfo = GetGuildMemberInfo
local GetGuildMemberCharacterInfo = GetGuildMemberCharacterInfo
local GetGuildId = GetGuildId
local GetGuildName = GetGuildName
local GetNumGuildMembers = GetNumGuildMembers
local IsUnitIgnored = IsUnitIgnored

-- GUILD METHODS ---------------------------------------------------------------------------------------------------

local function getGuildMembership()    
    local guildNum = 0
        
    GOT.guild = {}
    GOT.guild.member = {}
    
    for guildNum = 1,5,1 do
        local id = GetGuildId(guildNum)

        if id then 
            local members = GetNumGuildMembers(id)
            local guildname = GetGuildName(id)
            local member = 0
      
            for member = 1,members,1 do
                local player, note, rank, status, activelast = GetGuildMemberInfo(id,member)
                local hasCharacter, characterName, zoneName, classid, alliance, level, championRank = GetGuildMemberCharacterInfo(id,member)

                if hasCharacter and members > 1 then
                    local caret = string.len(characterName) - 3
                    local character = ""
                    if caret > 0 then
                        character = string.sub(characterName,1,caret)
                    end

                    GOT.guild.member[player]={}
                    GOT.guild.member[player].character = character
                    GOT.guild.member[player].firstguild = GOT.guild.member[player].firstguild or { size = 0, name = "" }
                    if GOT.guild.member[player].firstguild.size < members then
                        GOT.guild.member[player].firstguild.name = guildname
                        GOT.guild.member[player].firstguild.size = members
                    end            
                end
            end
        end
    end
end   

local function IsUnitGuild(player)
    local guild = nil
    local inguild = player and GOT and GOT.guild and GOT.guild.member and GOT.guild.member[player]
    if inguild then
        guild = GOT.guild.member[player].firstguild.name
    end
    return inguild, guild
end

local function guildMemberAdded(eventCode, guildId, displayName)
    getGuildMembership()
end 

local function guildMemberRemoved(eventCode, guildId, displayName, characterName)
    getGuildMembership()
end   
   
local function guildSelfLeft(eventCode, guildId, guildName)
    getGuildMembership()
end   

local function guildSelfJoined(eventCode, guildId, guildName)
    getGuildMembership()
end 

-- TARGET CHANGE EVENT --------------------------------------------------------------------------------------------- 
-- this fires when the target changes, then sets everything up for the next UI update   

function OnTargetChange(eventCode)
    local unitTag = "reticleover"
    local type = GetUnitType(unitTag)
    local name = GetUnitName(unitTag)
    local player = GetUnitDisplayName(unitTag)
    
    if name == nil or name == "" or type ~= UNIT_TYPE_PLAYER or IsUnitIgnored(unitTag) then return end

    local inguild, guild = IsUnitGuild(player) 

    if not inguild then return end
    
    local guildName = "<"..guild..">"
    ZO_TargetUnitFramereticleoverCaption:SetText(ZO_TargetUnitFramereticleoverCaption:GetText() .. " " .. guildName)
end

-- REGISTER AND INIT -----------------------------------------------------------------------------------------------

local function LoadAddon(eventCode, addOnName)
    if(addOnName ~= AddonInfo.addon) then return end

    getGuildMembership()

    if (LibNorthCastle) then LibNorthCastle:Register(AddonInfo.addon,AddonInfo.version) end
    
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_GUILD_MEMBER_CHARACTER_UPDATED, guildMemberAdded)
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_GUILD_MEMBER_ADDED, guildMemberAdded)
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_GUILD_MEMBER_REMOVED, guildMemberRemoved)
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_GUILD_SELF_JOINED_GUILD, guildSelfJoined)
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_GUILD_SELF_LEFT_GUILD, guildSelfLeft) 
    EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_RETICLE_TARGET_CHANGED, OnTargetChange)
    EVENT_MANAGER:UnregisterForEvent(AddonInfo.addon, EVENT_ADD_ON_LOADED)    
end
   
EVENT_MANAGER:RegisterForEvent(AddonInfo.addon, EVENT_ADD_ON_LOADED, LoadAddon)