Input.Pressed   -- 1: Key was just pressed
Input.Released  -- 2: Key was just released

Input.Register("Jump", "SpaceBar")
Input.Register("Fire", "LeftMouseButton")
Input.Register("AltFire", "RightMouseButton")
Input.Register("Reload", "R")
Input.Register("Crouch", "LeftControl")
Input.Register("Sprint", "LeftShift")

Input.Bind("Jump", Input.Pressed, function()
    Log("Jump pressed!")
    local char = Client.GetLocalCharacter()
    if char then
        char:Jump()
    end
end)

Input.Bind("Jump", Input.Released, function()
    Log("Jump released!")
end)

-- Register movement keys
Input.Register("MoveForward", "W")
Input.Register("MoveBack", "S")
Input.Register("MoveLeft", "A")
Input.Register("MoveRight", "D")
Input.Register("Jump", "SpaceBar")
Input.Register("Crouch", "LeftControl")
Input.Register("Sprint", "LeftShift")

-- Track key states
local keys = {
    forward = false,
    back = false,
    left = false,
    right = false,
    sprint = false
}

Input.Bind("MoveForward", Input.Pressed, function() keys.forward = true end)
Input.Bind("MoveForward", Input.Released, function() keys.forward = false end)
Input.Bind("MoveBack", Input.Pressed, function() keys.back = true end)
Input.Bind("MoveBack", Input.Released, function() keys.back = false end)
Input.Bind("MoveLeft", Input.Pressed, function() keys.left = true end)
Input.Bind("MoveLeft", Input.Released, function() keys.left = false end)
Input.Bind("MoveRight", Input.Pressed, function() keys.right = true end)
Input.Bind("MoveRight", Input.Released, function() keys.right = false end)
Input.Bind("Sprint", Input.Pressed, function() keys.sprint = true end)
Input.Bind("Sprint", Input.Released, function() keys.sprint = false end)

Input.Register("Fire", "LeftMouseButton")
Input.Register("AltFire", "RightMouseButton")
Input.Register("Reload", "R")
Input.Register("SwitchWeapon", "Q")
Input.Register("Grenade", "G")

Input.Bind("Fire", Input.Pressed, function()
    local hit = Trace.FromCamera(10000)
    if hit.hit then
        Events.CallServer("PlayerFired", {
            hit_location = { x = hit.impact.x, y = hit.impact.y, z = hit.impact.z },
            hit_entity = hit.entity and hit.entity:GetId() or nil
        })
    end
end)

Input.Bind("Reload", Input.Pressed, function()
    Events.CallServer("PlayerReload", {})
end)

local is_aiming = false
Input.Bind("AltFire", Input.Pressed, function()
    is_aiming = true
    Events.CallServer("PlayerAiming", { aiming = true })
end)

Input.Bind("AltFire", Input.Released, function()
    is_aiming = false
    Events.CallServer("PlayerAiming", { aiming = false })
end)

local inventory_ui = nil
local map_ui = nil

-- Create UIs after WebUI is ready
Timer.Delay(0.5, function()
    inventory_ui = WebUI.CreateAtScale("Inventory", "inventory/index.html")
    inventory_ui:SetVisible(false)

    map_ui = WebUI.CreateAtScale("Map", "map/index.html")
    map_ui:SetVisible(false)
end)

Input.Register("ToggleInventory", "I")
Input.Register("ToggleMap", "M")
Input.Register("Escape", "Escape")

Input.Bind("ToggleInventory", Input.Pressed, function()
    if not inventory_ui then return end
    local visible = not inventory_ui:IsVisible()
    inventory_ui:SetVisible(visible)
    if visible then
        inventory_ui:BringToFront()
        WebUI.SetFocusMode("hard")  -- Cursor visible, UI gets input
    else
        WebUI.SetFocusMode("none")  -- Game gets input
    end
end)

Input.Bind("ToggleMap", Input.Pressed, function()
    if not map_ui then return end
    map_ui:SetVisible(not map_ui:IsVisible())
end)

Input.Bind("Escape", Input.Pressed, function()
    -- Close any open UI
    if inventory_ui and inventory_ui:IsVisible() then
        inventory_ui:SetVisible(false)
        WebUI.SetFocusMode("none")
    end
    if map_ui and map_ui:IsVisible() then
        map_ui:SetVisible(false)
    end
end)

Input.Register("Interact", "E")
Input.Register("Use", "F")

Input.Bind("Interact", Input.Pressed, function()
    local hit = Trace.FromCamera(300)  -- 3 meter range
    if hit.hit and hit.entity then
        Events.CallServer("PlayerInteract", {
            target_id = hit.entity:GetId()
        })
    end
end)

-- Hold to use
local use_start_time = nil
Input.Bind("Use", Input.Pressed, function()
    use_start_time = GetWorldTime()
    local hit = Trace.FromCamera(300)
    if hit.hit and hit.entity then
        hud:CallEvent("ShowUseProgress", true)
    end
end)

Input.Bind("Use", Input.Released, function()
    if use_start_time then
        local duration = GetWorldTime() - use_start_time
        if duration >= 1.0 then  -- Held for 1 second
            local hit = Trace.FromCamera(300)
            if hit.hit and hit.entity then
                Events.CallServer("PlayerUse", {
                    target_id = hit.entity:GetId(),
                    duration = duration
                })
            end
        end
        use_start_time = nil
        hud:CallEvent("ShowUseProgress", false)
    end
end)

for i = 1, 9 do
    local key_name = ({ "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine" })[i]
    Input.Register("Hotbar" .. i, key_name)

    Input.Bind("Hotbar" .. i, Input.Pressed, function()
        Events.CallServer("SelectHotbar", { slot = i })
        hud:CallEvent("SelectSlot", i)
    end)
end

Input.Register("Hotbar0", "Zero")
Input.Bind("Hotbar0", Input.Pressed, function()
    Events.CallServer("SelectHotbar", { slot = 10 })
    hud:CallEvent("SelectSlot", 10)
end)