require("config.util")

local mods = {}

function mods.crouch_hurtbox(pat)
  local function adjust(seq, off, idx)
    pat:update_frame(seq, off, idx, function(frame)
      -- msgbox.format("%d:%d:%d: %s", seq, off, idx, table.tostring(frame.hurtbox))
      frame.hurtbox[1].y1 = frame.hurtbox[2].y1
      frame.hurtbox[1].x1 = -29
      frame.hurtbox[1].x2 = 29
      frame.hurtbox = {frame.hurtbox[1]}
    end)
  end

  for idx = 1,  4 do adjust(1, 0, idx) end
  for idx = 0,  2 do adjust(3, 0, idx) end
  adjust(2, 0, 0)
end

function mods.startup_6a(pat)
  pat:update_frame(302, 0, 0, { duration = 1 })
end

function mods.startup_3a(pat)
  pat:remove_frame(304, 0, 0)
end

function mods.dc_launch_vector(pat)
  for idx = 4, 6 do
    pat:update_frame(418, 0, idx, { launch_vector_x = 1250 })
  end
end

function mods.sense_of_thrown_edge_parameters(pat)
  pat:update_frame(817, 0, 2, {
    damage = 200,
    untech = 45,
    limit = 5,
    sp_damage = 30
  })
end

function mods.sense_of_thrown_edge_delay(pat, delay)
  pat:update_frame(817, 0, 1, { duration = delay })
end

function mods.parallel_brain_motion_cancel(pat)
  for seq = 550, 551 do
    pat:update_frame(seq, 0, 9, { duration = 11 })
    pat:update_frame(seq, 0, 10, { duration = 13 })
  end

  for seq = 552, 553 do
    pat:update_frame(seq, 0, 5, { duration = 11 })
    pat:update_frame(seq, 0, 6, { duration = 13 })
  end
end

function mods.killing_doll_object_parameters(pat)
  pat:update_frame(850, 2, 0, {
    proration = 920,
    -- sp_damage = 14,
  })
end

function mods.propelling_silver_motion_cancel(pat)
  for seq = 505, 506 do
    pat:update_frame(seq, 1, 3, set_attack_and_motion_cancel)
  end
end

function mods.propelling_silver_object_parameters(pat)
  pat:update_frame(815, 0, 1, {
    sp_damage = 30,
    blockstop_enemy = 5,
  })
end

function mods.time_paradox_startup(pat)
  pat:update_frame(570, 0, 0, { duration = 2 })
  pat:update_frame(570, 0, 1, { duration = 2 })
end

function mods.time_paradox_hit_parameters(pat)
  local changes = {
    untech = 90,
    launch_vector_y = 2300,
  }

  for idx = 4, 5 do
    pat:update_frame(823, 4, idx, changes)
    pat:update_frame(571, 4, idx, changes)
  end
end

return function(pat)
  if config:get("sakuya", "6a", "reduce_startup") then
    mods.startup_6a(pat)
  end

  if config:get("sakuya", "3a", "reduce_startup") then
    mods.startup_3a(pat)
  end

  if config:get("sakuya", "dc", "modify_launch_vector") then
    mods.dc_launch_vector(pat)
  end

  if config:get("sakuya", "sense_of_thrown_edge", "adjust_object_parameters") then
    mods.sense_of_thrown_edge_parameters(pat)
  end
  
  mods.sense_of_thrown_edge_delay(pat, config:getdef("sakuya", "sense_of_thrown_edge", "delay", 180))

  if config:get("sakuya", "parallel_brain", "faster_motion_cancel") then
    mods.parallel_brain_motion_cancel(pat)
  end
  
  mods.propelling_silver_motion_cancel(pat)
  mods.propelling_silver_object_parameters(pat)

  if config:get("sakuya", "time_paradox", "reduce_startup") then
    mods.time_paradox_startup(pat)
  end

  if config:get("sakuya", "time_paradox", "modify_parameters") then
    mods.time_paradox_hit_parameters(pat)
  end

  if config:get("sakuya", "killing_doll", "adjust_parameters") then
    mods.killing_doll_object_parameters(pat)
  end

  if config:get("sakuya", "crouch", "adjust_hurtbox") then
    mods.crouch_hurtbox(pat)
  end
end