TouchQuartz OS

-- Load and sort apps from the "apps" directory
local apps = {}
local appFiles = fs.list("apps")
for i, file in ipairs(appFiles) do
    if not fs.isDir("apps/" .. file) and file:match("%.lua$") then
        local name = file:gsub("%.lua$", "")
        local icon = string.sub(name, 1, 1):upper()
        table.insert(apps, {name = name, icon = icon, program = "apps/" .. file, key = icon:lower()})
    end
end
table.sort(apps, function(a, b) return a.name < b.name end)

-- Function to draw an app icon with key mapping
function drawIcon(x, y, char, color, name, key)
    term.setBackgroundColor(color)
    for i = 0, 3 do
        term.setCursorPos(x, y + i)
        term.write("    ")  -- 4-character wide block
    end
    term.setCursorPos(x + 1, y + 1)
    term.setTextColor(colors.white)
    term.write(char)
    term.setCursorPos(x, y + 3)
    term.setTextColor(colors.black)
    term.write(string.sub(name, 1, 4))  -- Truncated name
    term.setCursorPos(x + 2, y + 2)
    term.setTextColor(colors.yellow)
    term.write(key)  -- Display key mapping
end

-- Function to draw the home screen
function drawHomeScreen()
    term.setBackgroundColor(colors.lightBlue)
    term.clear()
    -- Draw status bar
    term.setBackgroundColor(colors.gray)
    term.setCursorPos(1, 1)
    term.clearLine()
    local timeStr = textutils.formatTime(os.time(), true)
    local status = "Time: " .. timeStr
    term.setCursorPos(26 - #status + 1, 1)
    term.setTextColor(colors.white)
    term.write(status)
    -- Draw app icons with key mappings
    for i = 1, math.min(20, #apps) do
        local row = math.floor((i - 1) / 5)
        local col = (i - 1) % 5
        local x = 1 + col * 5
        local y = 2 + row * 4
        drawIcon(x, y, apps[i].icon, colors.blue, apps[i].name, apps[i].key)
    end
end

-- Function to launch an app
function launchApp(app)
    term.setBackgroundColor(colors.black)
    term.clear()
    term.setCursorPos(1, 1)
    print("Launching " .. app.name .. "...")
    sleep(0.5)  -- Brief delay for feedback
    shell.run(app.program)
end

-- Main loop
while true do
    drawHomeScreen()
    local event, param1, param2, param3 = os.pullEvent()
    if event == "mouse_click" then
        local button, x, y = param1, param2, param3
        if y >= 2 and y <= 17 then
            local row = math.floor((y - 2) / 4) + 1
            if row >= 1 and row <= 4 then
                local col = math.floor((x - 1) / 5) + 1
                if col >= 1 and col <= 5 and (x - 1) % 5 < 4 then
                    local appIndex = (row - 1) * 5 + col
                    if appIndex <= #apps then
                        launchApp(apps[appIndex])
                    end
                end
            end
        end
    elseif event == "key" then
        local key = keys.getName(param1)
        for _, app in ipairs(apps) do
            if app.key == key then
                launchApp(app)
                break
            end
        end
    end
end