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-- Utility include for applying and tracking Treasure Hunter effects.
--
-- Include this if  you want a means of applying TH on the first contact
-- with a mob, then resume using normal gear.
-- Thf also has modes to use TH gear for SATA and for keeping it on fulltime.
--
-- Command: include('Mote-TreasureHunter')
-- Place this in your job_setup() function, or user_setup() function if using
-- a sidecar file, or get_sets() function if your job file isn't based
-- on my includes.
-- Be sure to define your own sets.TreasureHunter gear set after the include.
-- If using a job file based on my includes, simply place it in the
-- standard init_gear_sets() function.
--
-- If you define TH gear sets for common actions (eg: Provoke, Box Step, etc),
-- then make sure they are accounted for in a th_action_check function
-- (signature: th_action_check(category, param)) in the job file.  It's passed 
-- category and param value for actions the user takes, and if it returns true,
-- that means that it's considered a valid tagging action.
--
-- If using this in a job file that isn't based on my includes, you must
-- handle cycling the options values on your own, unless you also include
-- Mote-SelfCommands.
--
-- The job file must handle the 'update' self-command (gs c update auto).
-- This is automatically handled if using my includes, but must be ensured
-- if being used with a user-built job file.
-- When called, it merely needs to equip standard melee gear for the current
-- configuration.
--
-- Create a macro or keybind to cycle the Treasure Mode value:
-- gs c cycle TreasureMode
-------------------------------------------------------------------------------------------------------------------


-------------------------------------------------------------------------------------------------------------------
-- Setup vars and events when first running the include.
-------------------------------------------------------------------------------------------------------------------

-- Ensure base tables are defined
options = options or {}
state = state or {}
info = info or {}
state.TreasureMode = M{['description']='Treasure Mode'}

-- TH mode handling
if player.main_job == 'THF' then
    state.TreasureMode:options('None','Tag','SATA','Fulltime')
    state.TreasureMode:set('Tag')
else
    state.TreasureMode:options('None','Tag')
end

-- Tracking vars for TH.
info.tagged_mobs = T{}
info.last_player_target_index = 0
state.th_gear_is_locked = false

-- Required gear set.  Expand this in the job file when defining sets.
sets.TreasureHunter = {}

-- Event registration is done at the bottom of this file.


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-- User-callable functions for TH handling utility.
-------------------------------------------------------------------------------------------------------------------

-- Can call to force a status refresh.
-- Also displays the current tagged mob table if in debug mode.
function th_update(cmdParams, eventArgs)
    if (cmdParams and cmdParams[1] == 'user') or not cmdParams then
        TH_for_first_hit()
    
        if _settings.debug_mode then
            print_set(info.tagged_mobs, 'Tagged mobs')
        end
    end
end


-------------------------------------------------------------------------------------------------------------------
-- Local functions to support TH handling.
-------------------------------------------------------------------------------------------------------------------

-- Set locked TH flag to true, and disable relevant gear slots.
function lock_TH()
    state.th_gear_is_locked = true
    local slots = T{}
    for slot,item in pairs(sets.TreasureHunter) do
        slots:append(slot)
    end
    disable(slots)
end


-- Set locked TH flag to false, and enable relevant gear slots.
function unlock_TH()
    state.th_gear_is_locked = false
    local slots = T{}
    for slot,item in pairs(sets.TreasureHunter) do
        slots:append(slot)
    end
    enable(slots)
    send_command('gs c update auto')
end


-- For any active TH mode, if we haven't already tagged this target, equip TH gear and lock slots until we manage to hit it.
function TH_for_first_hit()
    if player.status == 'Engaged' and state.TreasureMode.value ~= 'None' then
        if not info.tagged_mobs[player.target.id] then
            if _settings.debug_mode then add_to_chat(123,'Prepping for first hit on '..tostring(player.target.id)..'.') end
            equip(sets.TreasureHunter)
            lock_TH()
        elseif state.th_gear_is_locked then
            if _settings.debug_mode then add_to_chat(123,'Target '..player.target.id..' has been tagged.  Unlocking.') end
            unlock_TH()
        else
            if _settings.debug_mode then add_to_chat(123,'Prepping for first hit on '..player.target.id..'.  Target has already been tagged.') end
        end
    else
        unlock_TH()
    end
end


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-- Event handlers to allow tracking TH application.
-------------------------------------------------------------------------------------------------------------------

-- On engaging a mob, attempt to add TH gear.  For any other status change, unlock TH gear slots.
function on_status_change_for_th(new_status_id, old_status_id)
    if gearswap.gearswap_disabled or T{2,3,4}:contains(old_status_id) or T{2,3,4}:contains(new_status_id) then return end
    
    local new_status = gearswap.res.statuses[new_status_id].english
    local old_status = gearswap.res.statuses[old_status_id].english

    if new_status == 'Engaged' then
        if _settings.debug_mode then add_to_chat(123,'Engaging '..player.target.id..'.') end
        info.last_player_target_index = player.target.index
        TH_for_first_hit()
    elseif old_status == 'Engaged' then
        if _settings.debug_mode and state.th_gear_is_locked then add_to_chat(123,'Disengaging. Unlocking TH.') end
        info.last_player_target_index = 0
        unlock_TH()
    end
end


-- On changing targets, attempt to add TH gear.
function on_target_change_for_th(new_index, old_index)
    -- Only care about changing targets while we're engaged, either manually or via current target death.
    if player.status == 'Engaged' then
        -- If  the current player.target is the same as the new mob then we're actually
        -- engaged with it.
        -- If it's different than the last known mob, then we've actually changed targets.
        if player.target.index == new_index and new_index ~= info.last_player_target_index then
            if _settings.debug_mode then add_to_chat(123,'Changing target to '..player.target.id..'.') end
            info.last_player_target_index = player.target.index
            TH_for_first_hit()
        end
    end
end


-- On any action event, mark mobs that we tag with TH.  Also, update the last time tagged mobs were acted on.
function on_action_for_th(action)
    --add_to_chat(123,'cat='..action.category..',param='..action.param)
    -- If player takes action, adjust TH tagging information
    if state.TreasureMode.value ~= 'None' then
        if action.actor_id == player.id then
            -- category == 1=melee, 2=ranged, 3=weaponskill, 4=spell, 6=job ability, 14=unblinkable JA
            if state.TreasureMode.value == 'Fulltime' or
               (state.TreasureMode.value == 'SATA' and (action.category == 1 or ((state.Buff['Sneak Attack'] or state.Buff['Trick Attack']) and action.category == 3))) or
               (state.TreasureMode.value == 'Tag' and action.category == 1 and state.th_gear_is_locked) or -- Tagging with a melee hit
               (th_action_check and th_action_check(action.category, action.param)) -- Any user-specified tagging actions
               then
                for index,target in pairs(action.targets) do
                    if not info.tagged_mobs[target.id] and _settings.debug_mode then
                        add_to_chat(123,'Mob '..target.id..' hit. Adding to tagged mobs table.')
                    end
                    info.tagged_mobs[target.id] = os.time()
                end
    
                if state.th_gear_is_locked then
                    unlock_TH()
                end
            end
        elseif info.tagged_mobs[action.actor_id] then
            -- If mob acts, keep an update of last action time for TH bookkeeping
            info.tagged_mobs[action.actor_id] = os.time()
        else
            -- If anyone else acts, check if any of the targets are our tagged mobs
            for index,target in pairs(action.targets) do
                if info.tagged_mobs[target.id] then
                    info.tagged_mobs[target.id] = os.time()
                end
            end
        end
    end
    
    cleanup_tagged_mobs()
end


-- Need to use this event handler to listen for deaths in case Battlemod is loaded,
-- because Battlemod blocks the 'action message' event.
--
-- This function removes mobs from our tracking table when they die.
function on_incoming_chunk_for_th(id, data, modified, injected, blocked)
    if id == 0x29 then
        local target_id = data:unpack('I',0x09)
        local message_id = data:unpack('H',0x19)%32768

        -- Remove mobs that die from our tagged mobs list.
        if info.tagged_mobs[target_id] then
            -- 6 == actor defeats target
            -- 20 == target falls to the ground
            if message_id == 6 or message_id == 20 then
                if _settings.debug_mode then add_to_chat(123,'Mob '..target_id..' died. Removing from tagged mobs table.') end
                info.tagged_mobs[target_id] = nil
            end
        end
    end
end


-- Clear out the entire tagged mobs table when zoning.
function on_zone_change_for_th(new_zone, old_zone)
    if _settings.debug_mode then add_to_chat(123,'Zoning. Clearing tagged mobs table.') end
    info.tagged_mobs:clear()
end


-- Save the existing function, if it exists, and call it after our own handling.
if job_state_change then
    job_state_change_via_th = job_state_change
end


-- Called if we change any user state fields.
function job_state_change(stateField, newValue, oldValue)
    if stateField == 'Treasure Mode' then
        if newValue == 'None' and state.th_gear_is_locked then
            if _settings.debug_mode then add_to_chat(123,'TH Mode set to None. Unlocking gear.') end
            unlock_TH()
        elseif oldValue == 'None' then
            TH_for_first_hit()
        end
    end
    
    if job_state_change_via_th then
        job_state_change_via_th(stateField, newValue, oldValue)
    end
end

-------------------------------------------------------------------------------------------------------------------
-- Extra utility functions.
-------------------------------------------------------------------------------------------------------------------

-- Remove mobs that we've marked as tagged with TH if we haven't seen any activity from or on them
-- for over 3 minutes.  This is to handle deagros, player deaths, or other random stuff where the
-- mob is lost, but doesn't die.
function cleanup_tagged_mobs()
    -- If it's been more than 3 minutes since an action on or by a tagged mob,
    -- remove them from the tagged mobs list.
    local current_time = os.time()
    local remove_mobs = S{}
    -- Search list and flag old entries.
    for target_id,action_time in pairs(info.tagged_mobs) do
        local time_since_last_action = current_time - action_time
        if time_since_last_action > 180 then
            remove_mobs:add(target_id)
            if _settings.debug_mode then add_to_chat(123,'Over 3 minutes since last action on mob '..target_id..'. Removing from tagged mobs list.') end
        end
    end
    -- Clean out mobs flagged for removal.
    for mob_id,_ in pairs(remove_mobs) do
        info.tagged_mobs[mob_id] = nil
    end
end


-------------------------------------------------------------------------------------------------------------------
-- Event function registration calls.
-- Can call these now that the above functions have been defined.
-------------------------------------------------------------------------------------------------------------------

-- Register events to allow us to manage TH application.
windower.register_event('status change', on_status_change_for_th)
windower.register_event('target change', on_target_change_for_th)
windower.raw_register_event('action', on_action_for_th)
windower.raw_register_event('incoming chunk', on_incoming_chunk_for_th)
windower.raw_register_event('zone change', on_zone_change_for_th)