local M = {}
M.opts = {}

function M.setup(opts)
        M.opts = vim.tbl_deep_extend("force", {}, require("Polydev.configs").get("terminal"), opts or {})
end

function M.exists(path)
        return (io.open(path, "r") ~= nil)
end

---@return string
function M.get_project_root()
        local plugin_dir = vim.fn.fnamemodify(debug.getinfo(1, "S").source:sub(2), ":h:h:h")

        local dir = vim.fn.system(plugin_dir .. "/bash_scripts/walkup.sh"):gsub("%s+$", "")
        return dir
end

---@return string
function M.get_project_name()
        return vim.fn.fnamemodify(M.get_project_root(), ":t")
end

---@param path_segments table
---@param content string
function M.write_file(path_segments, content)
        local path = table.concat(path_segments, "/")
        local file = assert(io.open(path, "w"), "Error creating file: " .. path)
        file:write(content)
        file:close()
        vim.cmd("edit " .. path)
end

---@param path string
---@param gitignore_lines table
function M.init_git(path, gitignore_lines)
        vim.fn.mkdir(path, "p")
        vim.fn.system({ "git", "-C", path, "init" })

        if gitignore_lines and #gitignore_lines > 0 then
                local contents = table.concat(gitignore_lines, "\n")
                M.write_file({ path, ".gitignore" }, contents)
        end
end

---@param cmd table
---@return integer, integer?
function M.terminal(cmd)
        if M.opts.mode == "floating" then
                local opts = require("Polydev.presets").getPresets(M.opts.win.anchor)

                local ui = vim.api.nvim_list_uis()[1]
                local width, height, row, col

                if opts ~= nil then
                        width = math.max(1, math.floor(ui.width * 0.9) - opts.left - opts.right)
                        height = math.max(1, math.floor(ui.height * 0.9) - opts.top - opts.bottom)
                        row = math.floor((ui.height - height) / 2) + opts.top
                        col = math.floor((ui.width - width) / 2) + opts.left
                end
                if opts == nil then
                        width = math.max(1, math.floor(ui.width * 0.9))
                        height = math.max(1, math.floor(ui.height * 0.9))
                        row = math.floor((ui.height - height) / 2)
                        col = math.floor((ui.width - width) / 2)
                end
                local buf = vim.api.nvim_create_buf(false, true)
                local win = vim.api.nvim_open_win(buf, true, {
                        relative = "editor",
                        width = width,
                        height = height,
                        row = row,
                        col = col,
                        style = "minimal",
                        border = M.opts.border.enabled and M.opts.border.type,
                })
                vim.api.nvim_set_option_value("winhighlight", "Normal:PolydevNormal,FloatBorder:PolydevBorder",
                        { win = win })
                vim.fn.jobstart(table.concat(cmd, "/"), { term = true })
                vim.api.nvim_buf_set_keymap(buf, "n", "<ESC>", "i<C-\\><C-n>:q<CR>", { noremap = true, silent = true })
                return buf, win
        end
        if M.opts.mode == "split" then
                if M.opts.win.type == "vertical" then
                        if M.opts.win.anchor == "right" then
                                vim.cmd("set splitright")
                        end
                end
                if M.opts.win.type == "horizontal" then
                        if M.opts.win.anchor == "bottom" then
                                vim.cmd("set splitbelow")
                        end
                end

                if M.opts.win.type == "vertical" then
                        vim.cmd(M.opts.win.size .. " vsplit")
                end
                if M.opts.win.type == "horizontal" then
                        vim.cmd(M.opts.win.size .. " split")
                end
                local buf = vim.api.nvim_create_buf(false, true)
                local win = vim.api.nvim_get_current_win()

                vim.api.nvim_win_set_buf(0, buf)

                vim.fn.jobstart(table.concat(cmd, "/"), { term = true })
                vim.api.nvim_buf_set_keymap(buf, "n", "<ESC>", "i<C-\\><C-n>:q<CR>", { noremap = true, silent = true })
                return buf, win
        end
        return 0
end

return M