local flow = require "flow/flow"

local bottom_sheet_sample = require "sample/screens/bottom_sheet/shared"

local function animate_new_multipliers(self, dt, nav)

if not nav then return false end

local current_screen = nav.current()

local params = current_screen and current_screen.params or nil

local multipliers = params and params.multipliers or nil

if not multipliers then return false end

local needs_invalidate = false

for _, mult in ipairs(multipliers) do

if mult.is_new then

mult.anim_progress = (mult.anim_progress or 0) + dt / 0.3

if mult.anim_progress >= 1 then

mult.anim_progress = 1

mult.is_new = false

else

needs_invalidate = true

end

end

end

if needs_invalidate then

nav.invalidate()

end

return needs_invalidate

end

local function handle_bottom_sheet_result(self, message_id, message)

if message_id ~= bottom_sheet_sample.DISMISSED_MESSAGE_ID then

return false

end

local nav = self.navigation

local current = nav and nav.current() or nil

if not current or current.id ~= "bottom_sheet_demo" then

return false

end

local params = current.params or {}

local sheet_params = message and message.params or {}

params.sheet_active = false

params.sheet_type = sheet_params.sheet_type or params.sheet_type or "actions"

params.sheet_size = sheet_params.sheet_size or params.sheet_size or "half"

params.last_action = sheet_params.last_action or params.last_action

params.message = message and message.result or "Dismissed by backdrop"

nav.invalidate()

return true

end

function init(self)

flow.init(self, {

on_update = animate_new_multipliers,

on_message = handle_bottom_sheet_result,

})

end

function final(self)

flow.final(self)

end

function update(self, dt)

flow.update(self, dt)

end

function on_message(self, message_id, message, sender)

flow.on_message(self, message_id, message, sender)

end

function on_input(self, action_id, action)

return flow.on_input(self, action_id, action)

end

function on_reload(self)

-- Add reload-handling code here

-- Learn more: https://defold.com/manuals/hot-reload/

-- Remove this function if not needed

end