HealerInRange.lua

local _, NS = ...

local Interface = NS.Interface

local CreateFrame = CreateFrame
local IsInInstance = IsInInstance

---@type HIR
local HIR = NS.HIR
local HIRFrame = NS.HIR.frame

-- Range Checker
do
  --- @class HealerInRangeFrame
  --- @field inRange boolean|nil
  --- @field SetScript fun(scriptType: string, handler: function|nil)

  --- @type HealerInRangeFrame|Frame|nil
  local healerInRangeFrame = nil
  local timeElapsed = 0

  local function InRangeChecker(_, elapsed)
    timeElapsed = timeElapsed + elapsed
    if timeElapsed > 0.1 then
      timeElapsed = 0

      local inRange = NS.isHealerInRange()

      if healerInRangeFrame and healerInRangeFrame.inRange ~= inRange then
        healerInRangeFrame.inRange = inRange
        Interface.inRange = inRange

        NS.ToggleVisibility(inRange, NS.db.global.reverse)
      end
    end
  end

  function HIR:CheckForHealerInRange()
    if IsInInstance() then
      if NS.isInGroup() then
        if NS.noHealersInGroup() then
          NS.ToggleVisibility(false, false)

          if healerInRangeFrame then
            ---@type HealerInRangeFrame
            healerInRangeFrame:SetScript("OnUpdate", nil)
          end
        else
          local inRange = NS.isHealerInRange()

          if not healerInRangeFrame then
            healerInRangeFrame = CreateFrame("Frame")
            --- @cast healerInRangeFrame HealerInRangeFrame
            healerInRangeFrame.inRange = inRange
            Interface.inRange = inRange
          end

          NS.ToggleVisibility(inRange, NS.db.global.reverse)

          ---@type HealerInRangeFrame
          healerInRangeFrame:SetScript("OnUpdate", InRangeChecker)
        end
      else
        if healerInRangeFrame then
          ---@type HealerInRangeFrame
          healerInRangeFrame:SetScript("OnUpdate", nil)
        end

        if NS.db.global.test then
          Interface.textFrame:Show()
          Interface.textFrame:SetAlpha(1)
        else
          Interface.textFrame:SetAlpha(0)
        end
      end
    else
      if NS.db.global.showOutside then
        if NS.isInGroup() then
          if NS.noHealersInGroup() then
            NS.ToggleVisibility(false, false)

            if healerInRangeFrame then
              ---@type HealerInRangeFrame
              healerInRangeFrame:SetScript("OnUpdate", nil)
            end
          else
            local inRange = NS.isHealerInRange()

            if not healerInRangeFrame then
              healerInRangeFrame = CreateFrame("Frame")
              --- @cast healerInRangeFrame HealerInRangeFrame
              healerInRangeFrame.inRange = inRange
              Interface.inRange = inRange
            end

            NS.ToggleVisibility(inRange, NS.db.global.reverse)

            ---@type HealerInRangeFrame
            healerInRangeFrame:SetScript("OnUpdate", InRangeChecker)
          end
        else
          if healerInRangeFrame then
            ---@type HealerInRangeFrame
            healerInRangeFrame:SetScript("OnUpdate", nil)
          end

          if NS.db.global.test then
            Interface.textFrame:Show()
            Interface.textFrame:SetAlpha(1)
          else
            Interface.textFrame:SetAlpha(0)
          end
        end
      end
    end
  end

  function HIR:GROUP_ROSTER_UPDATE()
    self:CheckForHealerInRange()
  end
end

function HIR:PLAYER_UNGHOST()
  self:CheckForHealerInRange()
end

function HIR:PLAYER_DEAD()
  self:CheckForHealerInRange()
end

local DEAD_EVENTS = {
  "PLAYER_DEAD",
  "PLAYER_UNGHOST",
}

function HIR:PLAYER_ENTERING_WORLD()
  FrameUtil.RegisterFrameForEvents(HIRFrame, DEAD_EVENTS)

  if IsInInstance() then
    if NS.isInGroup() then
      if NS.isDead() then
        Interface.textFrame:SetAlpha(0)
      else
        if NS.db.global.healer then
          if NS.isHealer("player") then
            Interface.textFrame:SetAlpha(0)
          else
            if NS.noHealersInGroup() then
              Interface.textFrame:SetAlpha(0)
            else
              Interface.textFrame:SetAlpha(1)
            end
          end
        else
          if NS.noHealersInGroup() then
            Interface.textFrame:SetAlpha(0)
          else
            Interface.textFrame:SetAlpha(1)
          end
        end
      end
    end
  else
    if NS.db.global.showOutside then
      if NS.isInGroup() then
        if NS.isDead() then
          Interface.textFrame:SetAlpha(0)
        else
          if NS.db.global.healer then
            if NS.isHealer("player") then
              Interface.textFrame:SetAlpha(0)
            else
              if NS.noHealersInGroup() then
                Interface.textFrame:SetAlpha(0)
              else
                Interface.textFrame:SetAlpha(1)
              end
            end
          else
            if NS.noHealersInGroup() then
              Interface.textFrame:SetAlpha(0)
            else
              Interface.textFrame:SetAlpha(1)
            end
          end
        end
      end
    end
  end

  self:CheckForHealerInRange()

  HIRFrame:RegisterEvent("GROUP_ROSTER_UPDATE")
end

function HIR:PLAYER_LOGIN()
  HIRFrame:UnregisterEvent("PLAYER_LOGIN")

  Interface:CreateInterface()

  HIRFrame:RegisterEvent("PLAYER_ENTERING_WORLD")
end
HIRFrame:RegisterEvent("PLAYER_LOGIN")