extKey = "annabunches/abase" -- this must come before we require 'abase-commands'

local cmd = require "abase-commands"
local listeners = require "abase-listeners"

function IsLayerSelectionMergable()
    for _, layer in ipairs(app.range.layers) do
        if layer.isGroup then return true end
    end
    return false
end

function init(plugin)
    -- New menu UI elements
    plugin:newMenuSeparator{
        group="layer_popup_merge"
    }

    plugin:newMenuSeparator{
        group="layer_merge"
    }

    plugin:newMenuGroup{
        id="abase_layer_settings",
        title="Advanced Export",
        group="layer_merge",
    }

    plugin:newMenuGroup{
        id="abase_layer_settings_popup",
        title="Advanced Export",
        group="layer_popup_merge",
    }

    -- Menu plumbing for export command
    plugin:newCommand{
        id="ABASEExportSpritesheetAdvanced",
        title="Export Spritesheet (Advanced)",
        group="file_export_1",
        onclick=cmd.ExportSpritesheetAdvanced,
        onenabled=function()
            return app.activeSprite ~= nil
        end,
    }

    -- Menu plumbing for ToggleIgnore
    plugin:newCommand{
        id="ABASEToggleIgnoreLayer",
        title="Toggle Ignore",
        group="abase_layer_settings",
        onclick=cmd.ToggleIgnore,
    }

    plugin:newCommand{
        id="ABASEToggleIgnoreLayerPopup",
        title="Toggle Ignore",
        group="abase_layer_settings_popup",
        onclick=cmd.ToggleIgnore,
    }

    -- Menu plumbing for ToggleExportAsSprite
    plugin:newCommand{
        id="ABASEToggleExportAsSprite",
        title="Toggle Merge Group",
        group="abase_layer_settings",
        onclick=cmd.ToggleExportAsSprite,
        onenabled=IsLayerSelectionMergable,
    }

    plugin:newCommand{
        id="ABASEToggleExportAsSpritePopup",
        title="Toggle Merge Group",
        group="abase_layer_settings_popup",
        onclick=cmd.ToggleExportAsSprite,
        onenabled=IsLayerSelectionMergable,
    }

    -- Event hooks
    app.events:on(
        "aftercommand",
        function(ev)
            if (ev.name == "NewLayer") then
                listeners.RecolorLayers()
            end
        end
    )
end