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path: root/lua/alpha/telescope/actions.lua
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local M = {}

local action_state = require("telescope.actions.state")
local actions = require("telescope.actions")

M.create_plugin = function(prompt_bufnr)
    local new_plugin = action_state.get_current_line()
    actions.close(prompt_bufnr)
    vim.cmd(string.format("edit ~/.config/nvim/lua/plugins/%s.lua", new_plugin))
end

local get_disable_stm_node = function(bufnr, tree)

    vim.treesitter.set_query(
        "lua",
        "alpha_plugin_is_disabled",
        [[
(return_statement
  (expression_list
    (table_constructor
      (field
        name: (identifier) @enabled (#eq? @enabled "enabled")
        value: (false) @is_false
        )
      )
    )
  )
        ]]
    )

    local query = vim.treesitter.get_query("lua", "alpha_plugin_is_disabled")


    for id, node in query:iter_captures(tree:root(), bufnr) do
        if query.captures[id] == "enabled" then

            return node
        end
    end

    return nil
end

local get_enabled_node = function(bufnr, tree)
    vim.treesitter.set_query(
        "lua",
        "alpha_plugin_has_enable_property",
        [[
(return_statement
  (expression_list
    (table_constructor
      (field
        name: (identifier) @enabled (#eq? @enabled "enabled")
        )
      )
    )
  )
        ]]
    )

    local query = vim.treesitter.get_query("lua", "alpha_plugin_has_enable_property")


    for id, node in query:iter_captures(tree:root(), bufnr) do
        if query.captures[id] == "enabled" then

            return node
        end
    end

    return nil
end

local get_return_node = function(bufnr, tree)
    vim.treesitter.set_query(
        "lua",
        "alpha_plugin_return_table_constructor",
        [[
(return_statement
  (expression_list
    (table_constructor) @table_constructor
    )
  )
        ]]
    )

    local query = vim.treesitter.get_query("lua", "alpha_plugin_return_table_constructor")


    for id, node in query:iter_captures(tree:root(), bufnr) do
        if query.captures[id] == "table_constructor" then

            return node
        end
    end

    return nil
end

M.disable_plugin = function(prompt_bufnr)
    local entry = action_state.get_selected_entry()
    local uri = vim.uri_from_fname(entry.cwd .. entry[1])
    local bufnr = vim.uri_to_bufnr(uri)
    vim.fn.bufload(bufnr)

    local parsers = require("nvim-treesitter.parsers")
    local parser = parsers.get_parser(bufnr)
    if type(parser:parse()) == "table" then
        vim.notify("Expected number but got table ???", vim.log.levels.ERROR, {})
        P(parser:parse())
        return
    end
    local tree = unpack(parser:parse())

    local disabled_stm_node = get_disable_stm_node(bufnr, tree)
    if disabled_stm_node ~= nil then
        vim.notify("Plugin is already disable", vim.log.levels.WARN, {})
        return
    end

    local start_line
    local end_line

    local enable_node = get_enabled_node(bufnr, tree)
    if enable_node == nil then
        -- node does not exists need to assume line
        local return_node = get_return_node(bufnr, tree)

        if return_node == nil then
            vim.notify("Can determine how to diable the plugin", vim.log.levels.ERROR, {})
            return
        end

        start_line = return_node:start() + 2
        end_line = start_line
    else
        start_line = enable_node:start()
        end_line = start_line + 1
    end


    vim.api.nvim_buf_set_lines(bufnr, start_line, end_line, false, { "    enabled = false," })
    vim.notify("Plugin " .. entry[1] .. " Disabled", vim.log.levels.INFO, {})
    actions.close(prompt_bufnr)
    vim.api.nvim_buf_call(bufnr, function()
        vim.cmd("write")
    end)
end

M.enable_plugin = function (prompt_bufnr)
    local entry = action_state.get_selected_entry()
    local uri = vim.uri_from_fname(entry.cwd .. entry[1])
    local bufnr = vim.uri_to_bufnr(uri)
    vim.fn.bufload(bufnr)

    local parsers = require("nvim-treesitter.parsers")
    local parser = parsers.get_parser(bufnr)

    if type(parser:parse()) == "table" then
        vim.notify("Expected number but got table ???", vim.log.levels.ERROR, {})
        P(parser:parse())
        return
    end
    local tree = unpack(parser:parse())

    local disabled_stm_node = get_disable_stm_node(bufnr, tree)
    if disabled_stm_node == nil then
        vim.notify("Plugin is already Enable", vim.log.levels.WARN, {})
        return
    end

    local enable_line = disabled_stm_node:start()
    vim.api.nvim_buf_set_lines(bufnr, enable_line, enable_line + 1, false, {})
    vim.notify("Plugin " .. entry[1] .. " Enabled", vim.log.levels.INFO, {})
    actions.close(prompt_bufnr)
    vim.api.nvim_buf_call(bufnr, function()
        vim.cmd("write")
    end)
end

return M