require("config.util")

local mods = {}

function mods.recovery_ja(pat)
  pat:update_frame(306, 0, 5, { duration = 10 })
end

function mods.duration_j6a(pat, delta_6, delta_7)
  pat:update_frame(307, 0, 6, { duration = 3 + delta_6 })
  pat:update_frame(307, 0, 7, { duration = 14 - delta_7 }) 
end

function mods.hit_parameters_db(pat)
  for off = 1, 3 do
    pat:update_frame(408, off, 0, { hit_ani_ground = 0 })
  end
end

function mods.ungrazable_drills(pat)
  for off = 4, 5 do
    for idx = 0, 2 do
      pat:update_frame(800, off, idx, function(frame)
        set_aflag(frame, AF_UNGRAZABLE)
      end)
    end
  end
end

function mods.six_signs_mid_hit(pat)
  pat:update_frame(811, 6, 0, function(frame)
    set_aflag(frame, AF_HIGHBLOCK_OK)
  end)
end

function mods.six_signs_motion_cancel_b(pat)
  pat:update_frame(505, 0, 8, { duration = 5 })
  pat:update_frame(505, 0, 12, { duration = 15 })
end

function mods.six_signs_motion_cancel_c_1(pat)
  pat:update_frame(506, 0, 11, { duration = 15 })
  pat:update_frame(506, 0, 12, { duration = 15 })
end

function mods.six_signs_motion_cancel_c_2(pat)
  pat:update_frame(506, 0, 8, { duration = 15 })
  pat:update_frame(506, 0, 11, { duration = 15 })
  pat:update_frame(506, 0, 12, { duration = 15 })
end

function mods.sky_attack_startup(pat)
  for seq = 570, 571 do
    pat:update_frame(seq, 0, 0, { duration = 1 })
    pat:update_frame(seq, 0, 1, { duration = 1 })
  end
end

function mods.sky_attack_hit_parameters(pat, args)
  for i = 570, 572, 2 do
    for j = 0, 3 do
      pat:update_frame(i, 1, j, args)
    end
  end
    for i = 571, 573, 2 do
    for j = 0, 5 do
      pat:update_frame(i, 1, j, args)
    end
  end
end

function mods.heaven_and_earth_press_paramaters(pat)
  for _, off in ipairs({2, 3, 10, 11}) do
    for idx = 0, 3 do
      pat:update_frame(821, off, idx, { sp_damage = 50 })
    end
  end

  for _, off in ipairs({7, 12}) do
    pat:update_frame(821, off, 0, { sp_damage = 100 })
  end
end

function mods.heaven_and_earth_press_cancel(pat)
  for seq_id = 545, 548 do
    pat:update_frame(seq_id, 2, 3, function(frame)
      set_fflag(frame, FF_ATTACK_CANCEL + FF_MOTION_CANCEL)
    end)
  end
end

function mods.guardian_keystone_startup(pat)
  pat:update_frame(525, 0, 2, { duration = 5 })
end

function mods.sword_of_fate_catch_recovery(pat)
  pat:update_frame(514, 0, 1, { duration = 5 })
  pat:split_frame(514, 1, 1, 5, 10)
end

function mods.sword_of_fate_catch_cancel_properties(pat)
  for off = 0, 1 do
    for idx = 1, pat:get_sequence(514, off):get_frame_count() - 1 do
      pat:update_frame(514, off, idx, function(frame)
        set_fflag(frame, idx < 2 and FF_ATTACK_CANCEL or FF_ATTACK_CANCEL + FF_MOTION_CANCEL)
      end)
    end
  end
end

function mods.sword_of_fate_bullet_properties(pat)
  for idx = 0, 3 do
    pat:update_frame(812, 0, idx, { sp_damage = 50 })
  end
end

function mods.sword_of_scarlet_perception_recovery(pat)
  pat:update_frame(565, 0, 8, { blockstop_enemy = 7 })
end

return function(pat)
  if config:get("tenshi", "ja", "reduce_recovery") then
    mods.recovery_ja(pat)
  end

  mods.duration_j6a(
    config:getdef("tenshi", "j6a", "extend_active_time_by", 0),
    config:getdef("tenshi", "j6a", "reduce_recovery_by", 0)
  )

  if config:get("tenshi", "db", "remove_launch") then
    mods.hit_parameters_db(pat)
  end

  -- mods.ungrazable_drills(pat)
  if config:get("tenshi", "six_signs", "accept_high_block") then
    mods.six_signs_mid_hit(pat)
  end

  if config:get("tenshi", "six_signs", "faster_motion_cancel_b") then
    mods.six_signs_motion_cancel_b(pat)
  end

  if config:get("tenshi", "six_signs", "faster_motion_cancel_c") == 1 then
    mods.six_signs_motion_cancel_c_1(pat)
  elseif config:get("tenshi", "six_signs", "faster_motion_cancel_c") == 2 then
    mods.six_signs_motion_cancel_c_2(pat)
  end

  if config:get("tenshi", "sword_of_fate", "reduce_catch_recovery") then
    mods.sword_of_fate_catch_recovery(pat)
    mods.sword_of_fate_catch_cancel_properties(pat)
  end
  
  mods.sword_of_fate_bullet_properties(pat)
  mods.heaven_and_earth_press_cancel(pat)

  if config:get("tenshi", "heaven_and_earth_press", "increase_spirit_damage") then
    mods.heaven_and_earth_press_paramaters(pat)
  end

  if config:get("tenshi", "sword_of_scarlet_perception", "adjust_recovery") then
    mods.sword_of_scarlet_perception_recovery(pat)
  end

  if config:get("tenshi", "sky_attack", "reduce_startup") then
    mods.sky_attack_startup(pat)
  end
  
  mods.sky_attack_hit_parameters(pat, {
    damage = config:getdef("tenshi", "sky_attack", "damage", 1000),
    untech = 90,
  })

  mods.guardian_keystone_startup(pat)
end