local dap = require('dap')
local async = require('plenary.async')

--- Gets a path for a given program in the environment
---@param program @The string of a program in the PATH
---@return @The full path to the program if found, or nil if not
local function get_program_path(program)
    local fd = io.popen('which ' .. program)
    local program_path = fd:read('*all')
    fd:close()
    program_path = program_path.gsub(program_path, '\n', '')

    if program_path == nil or program_path == '' then
        async.run(function()
            vim.notify.async(('Failed to find (%s) in your path'):format(program), 'error', {
                title = 'DAP',
            }).events.close()
        end)
        program_path = nil
    end
    return program_path
end

local lldb_path = get_program_path('lldb-vscode')
-- Adapaters
dap.adapters.lldb = {
    type = 'executable',
    command = lldb_path,
    name = 'lldb',
}
-- configurations
dap.configurations.cpp = {
    {
        name = 'Launch',
        type = 'lldb',
        request = 'launch',
        program = function()
            return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
        end,
        cwd = '${workspaceFolder}',
        stopOnEntry = false,
        targetArchitecture = 'arm64',
        args = {},

        -- if you change `runInTerminal` to true, you might need to change the yama/ptrace_scope setting:
        --
        --    echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope
        --
        -- Otherwise you might get the following error:
        --
        --    Error on launch: Failed to attach to the target process
        --
        -- But you should be aware of the implications:
        -- https://www.kernel.org/doc/html/latest/admin-guide/LSM/Yama.html
        runInTerminal = false,
    },
}

dap.configurations.c = dap.configurations.cpp
dap.configurations.rust = dap.configurations.cpp