require("config.util")

local mods = {}

function mods.modify_dash(pat)
  local function set_graze(frame)
    set_fflag(frame, FF_GRAZE)
  end

  pat:update_frame(204, 0, 3, { duration = 10 })

  for idx = 3, 5 do
    pat:update_frame(204, 0, idx, set_graze)
  end
end

function mods.startup_daa(pat)
  for idx = 0, 5 do
    pat:update_frame(305, 1, idx, { duration = 2 })
  end
end

function mods.cancel_priority_daa(pat)
  pat:get_sequence(305, 1):set_priority(50, 50)
end

function mods.hitbox_j2a(pat)
  pat:update_frame(308, 1, 0, function(frame)
    frame.attackbox[1].x2 = 128
    frame.attackbox[2].x2 = 144
  end)
end

function mods.cancel_priority_j2a(pat)
  pat:get_sequence(308, 2):set_priority(20, 50)
end

function mods.lotus_stance_cut_motion_cancel(pat)
  for seq = 505, 506 do
    pat:update_frame(seq, 0, 7, { duration = 8 })
  end

  for seq = 507, 508 do
    pat:update_frame(seq, 0, 8, { duration = 8 })
  end

  pat:update_frame(506, 0, 3, { duration = 10 })
  pat:update_frame(508, 0, 4, { duration = 10 })
end

function mods.heart_carving_slash_startup(pat)
  pat:update_frame(545, 0, 2, { duration = 5 })
  pat:update_frame(546, 0, 2, { duration = 10 })
end

function mods.sword_of_cycles_damage(pat)
  pat:update_frame(612, 2, 6, { damage = 1100 })
end

function mods.ascension_to_nirvana_damage(pat)
  local function change(frame)
    -- frame.proration = 950
    frame.damage = 560
    frame.chip_damage = 56
  end

  for idx = 2, 6 do
    pat:update_frame(857, 0, idx, change)
  end

  for idx = 0, 5 do
    pat:update_frame(857, 1, idx, change)
  end
end

function mods.blue_sword_parameters(pat)
  for idx = 12, 17 do
    pat:update_frame(604, 0, idx, { limit = 5 })
  end
end

return function(pat)
  if config:get("youmu", "dash", "continuous_graze") then
    mods.modify_dash(pat)
  end

  if config:get("youmu", "j2a", "old_hitbox") then
    mods.hitbox_j2a(pat)
  end

  if config:get("youmu", "j2a", "skill_cancelable") then
    mods.cancel_priority_j2a(pat)
  end

  mods.startup_daa(pat)
  mods.cancel_priority_daa(pat)

  mods.heart_carving_slash_startup(pat)
  -- mods.sword_of_cycles_damage(pat)
  -- mods.ascension_to_nirvana_damage(pat)
  mods.blue_sword_parameters(pat)
end