local M = {}

local PADDING = 24
local COLOR_BG    = 0x282828FF
local COLOR_TEXT  = 0xE0E0E0FF
local COLOR_DIM   = 0xA0A0A0FF
local FONT_TITLE  = 28
local FONT_BODY   = 14

function M.render(ctx)
    local p = ctx.detail_panel_rect
    engine.render.draw_rect(p.x, p.y, p.w, p.h, COLOR_BG)

    if not ctx.selected_entry then
        -- Empty state: background image + hint text (L.10 ships the image).
        if ctx.bg_texture then
            engine.render.draw_texture(ctx.bg_texture, p.x, p.y)
        end
        local hint = ctx.t("empty_hint")
        local w, h = engine.render.measure_text(hint, FONT_BODY)
        engine.render.draw_text(hint,
            p.x + (p.w - w) / 2, p.y + (p.h - h) / 2,
            FONT_BODY, COLOR_DIM)
        return
    end

    -- Stub for L.4/L.5/L.6/L.7: full content lands later.
    engine.render.draw_text(tostring(ctx.selected_entry),
        p.x + PADDING, p.y + PADDING, FONT_TITLE, COLOR_TEXT)
end

function M.handle_click(ctx, mx, my)
    -- Stub: real hit-tests for launch button + carousel arrows in L.5/L.7.
    return false
end

return M