local Event = require 'utils.event'

local mod_gui = require('mod-gui')

local script_data = {
    finished = {},
    removed_old_gui = true,
    no_victory = false
}

local remove_old_frame = function(player)
    local gui = mod_gui.get_frame_flow(player)
    local frame = gui.silo_gui_frame
    if frame then
        frame.destroy()
    end
end

local remove_old_button = function(player)
    local button_flow = mod_gui.get_button_flow(player)
    local button = button_flow.silo_gui_sprite_button
    if button then
        button.destroy()
    end
end

local remove_old_gui = function()
    for _, player in pairs(game.players) do
        remove_old_frame(player)
        remove_old_button(player)
    end
end

local on_rocket_launched = function(event)
    if script_data.no_victory then
        return
    end

    local rocket = event.rocket
    if not (rocket and rocket.valid) then
        return
    end

    local force = rocket.force

    script_data.finished = script_data.finished or {}
    if script_data.finished[force.name] then
        return
    end

    script_data.finished[force.name] = true

    game.reset_game_state()
    game.set_game_state {
        game_finished = true,
        player_won = true,
        can_continue = true,
        victorious_force = force
    }
end

local add_remote_interface = function()
    if not remote.interfaces['silo_script'] then
        remote.add_interface(
            'silo_script',
            {
                set_no_victory = function(bool)
                    script_data.no_victory = bool
                end,
                get_no_victory = function()
                    return script_data.no_victory
                end
            }
        )
    end
end
add_remote_interface()

Event.add(defines.events.on_rocket_launched, on_rocket_launched)

Event.on_configuration_changed(
    function()
        if not script_data.removed_old_gui then
            script_data.removed_old_gui = true
            script_data.tracked_items = nil
            remove_old_gui()
            log('Remove the old silo script GUI')
        end
        script_data.finished = script_data.finished or {}

        script_data.no_victory = storage.no_victory
        storage.no_victory = nil
    end
)

Event.on_init(
    function()
        storage.silo_script = storage.silo_script or script_data
    end
)

Event.on_load(
    function()
        script_data = storage.silo_script or script_data
    end
)

return {events = {}}