require("config.util")

local mods = {}

function mods.recovery_j8a(pat)
  pat:update_frame(309, 0, 9, { duration = 5 })
  pat:update_frame(309, 0, 10, { duration = 5 })
end

function mods.modify_b_bullets(pat)
  for off = 0, 6 do
    pat:update_frame(801, off, 0, {
      hitstop_enemy = 10,
      proration = 970
    })
  end
end

function mods.modify_c_bullets(pat)
  local function modify_range(off, first, last)
    for idx = first, last do
      pat:update_frame(805, off, idx, {
        hitstop_enemy = 10
      })
    end
  end

  modify_range(0, 8, 12)
  modify_range(1, 0, 14)
  modify_range(3, 8, 12)
  modify_range(4, 0, 14)
  modify_range(6, 8, 12)
  modify_range(7, 0, 14)
  modify_range(9, 8, 12)
  modify_range(10, 0, 14)
end

function mods.modify_6c_parameters(pat)
  for idx = 0, 1 do
    pat:update_frame(815, 0, idx, { blockstop_enemy = 5 })
  end
end

function mods.star_bullets_recovery(pat)
  pat:update_frame(602, 2, 10, { duration = 4 })
end

function mods.star_bullets_object_parameters(pat)
  for idx = 0, 1 do
    pat:update_frame(852, 1, idx, {
      damage = 650,
      sp_damage = 50,
    })
  end
end

function mods.fragrant_wave_motion_cancel(pat)
  local function set_motion_cancel(frame)
    set_fflag(frame, FF_MOTION_CANCEL)
  end

  -- pat:update_frame(560, 0, 12, set_motion_cancel)
  pat:update_frame(560, 0, 13, set_motion_cancel)
  pat:update_frame(561, 0, 24, { duration = 5 })
  pat:update_frame(561, 0, 23, set_motion_cancel)
  pat:update_frame(561, 0, 24, set_motion_cancel)
end

function mods.fragrant_wave_object_parameters(pat)
  for off = 0, 2 do
    for idx = 0, 15 do
      pat:update_frame(825, off, idx, { blockstop_enemy = 6 })
    end
  end
end

function mods.fragrant_wave_startup(pat)
  pat:remove_frame(560, 0, 0)

  for idx = 0, 7 do
    pat:remove_frame(561, 0, 0)
  end
end

function mods.colorful_rain_startup(pat)
  pat:update_frame(570, 0, 3, { duration = 3 })
  pat:update_frame(571, 0, 3, { duration = 6 })
  pat:update_frame(573, 0, 3, { duration = 4 })
end

function mods.colorful_rain_object_parameters(pat)
  for off = 0, 6 do
    pat:update_frame(827, off, 0, { hitstop_enemy = 10 })
  end
end

function mods.intense_rainbow_fist_hit_parameters(pat)
  for idx = 0, 2 do
    pat:update_frame(606, 1, idx, {
      -- combo_correction = CC_NONE,
      launch_vector_y = 200 + 100 * (3 - idx),
      blockstop_enemy = 8,
      attack_level = AL_MEDIUM,
    })
  end
end

return function(pat)
  mods.recovery_j8a(pat)
  mods.modify_b_bullets(pat)
  mods.modify_c_bullets(pat)
  -- mods.modify_6c_parameters(pat)
  
  -- mods.fragrant_wave_motion_cancel(pat)
  -- mods.fragrant_wave_object_parameters(pat)
  
  if config:get("meirin", "fragrant_wave", "reduce_startup") then
    mods.fragrant_wave_startup(pat)
  end

  mods.colorful_rain_object_parameters(pat)
  -- mods.intense_rainbow_fist_hit_parameters(pat)
  -- mods.star_bullets_recovery(pat)
  mods.star_bullets_object_parameters(pat)
end