---Generates a table with available targets
---
---@return table
---@nodiscard
function tableOfTargets()
    -- Ugly way to retrieve targets, but it works
    -- Do not hesitate to change the command
    local generatorExecutable = io.popen([[sed -n "s/add_executable(\(.*\))/\1/p" CMakeLists.txt|sed "s/ .*//p"|uniq]])
        :lines()
    local choiceTable = {}
    for line in generatorExecutable do
        table.insert(choiceTable, line)
    end
    return choiceTable
end

---Displays a menu to let the user choose a target to compile
---
---@return nil
function chooseTarget(pCallbackFunction)
    vim.ui.select(tableOfTargets(), {
            prompt = 'Choose target:',
            format_item = function(item)
                return item
            end,
        },
        pCallbackFunction
    )
end

---@return nil
function createFloatingWindow()
    local max_height = vim.api.nvim_win_get_height(0)
    local max_width = vim.api.nvim_win_get_width(0)
    local window_height = math.floor(max_height / 2)
    local window_width = math.floor(max_width / 2)
    local window_buffer = vim.api.nvim_create_buf(false, true)
    vim.api.nvim_open_win(window_buffer, true, {
        border = "rounded",
        style = "minimal",
        relative = "editor",
        noautocmd = true,
        height = window_height,
        width = window_width,
        col = math.floor((max_width - window_width) / 2),
        row = math.floor((max_height - window_height) / 2)
    })
    return window_buffer
end

---@return nil
function createFloatingTerminal()
    createFloatingWindow()
    vim.cmd.term()
    vim.cmd.startinsert()
end

---@param command string
---@return nil
function executeCommandInTerminal(command)
    local channel = vim.bo.channel
    -- 'clear' is used to hide the command
    local exit_message = "\nPress enter to exit..."
    vim.api.nvim_chan_send(channel,
        "clear && " .. command .. " && echo '" .. exit_message .. "' && read -s && exit" .. "\n")
end

---Compiles a target
---
---@return nil
function compileTarget()
    function compile(pTarget)
        if not (pTarget == nil) and string.len(pTarget) > 0 then
            createFloatingTerminal()
            local command = "cmake --build build --target " .. pTarget .. " && ./build/" .. pTarget
            executeCommandInTerminal(command)
        end
    end

    chooseTarget(compile)
end

vim.keymap.set("n", "mt", compileTarget)