#!/usr/bin/lua

local config = require 'lime.config'
local wireless = require 'lime.wireless'
local uci = config.get_uci_cursor()

local uci_files = { config.UCI_COMMUNITY_NAME, config.UCI_NODE_NAME  }

local function move_modes_to_specific_band(file_name)
    local modes = uci:get(file_name, 'wifi', 'modes')
    if modes == nil then
        return
    end
    local modes_2ghz = {}
    local modes_5ghz = {}
    for _, mode in pairs(modes) do
        local mode_name = utils.split(mode, '_')[1]
        local mode_band = utils.split(mode, '_')[2]
        if mode_band == nil or mode_band == '2ghz' then
            table.insert(modes_2ghz, mode_name)
        end
        if mode_band == nil or mode_band == '5ghz' then
            table.insert(modes_5ghz, mode_name)
        end
    end
    modes_2ghz = utils.tableLength(modes_2ghz) > 0 and modes_2ghz or {'manual'}
    modes_5ghz = utils.tableLength(modes_5ghz) > 0 and modes_5ghz or {'manual'}
    uci:set(file_name, '2ghz', 'lime-wifi-band')
    uci:set(file_name, '2ghz', 'modes', modes_2ghz)
    uci:set(file_name, '5ghz', 'lime-wifi-band')
    uci:set(file_name, '5ghz', 'modes', modes_5ghz)
    uci:delete(file_name, 'wifi', 'modes')
end


local function move_restof_to_specific_band(file_name)
    local options = uci:get_all(file_name, 'wifi')
    if options == nil then
        return
    end
    for key, value in pairs(options) do
        local band_name = utils.split(key, '_')[2]
        if band_name == '2ghz' or band_name == '5ghz' then
            uci:set(file_name, band_name, 'lime-wifi-band')
            local derived_key = utils.split(key, '_')[1]
            uci:set(file_name, band_name, derived_key, value)
            uci:delete(file_name, 'wifi', key)
        end
    end
end

local function migrate_file(file_name)
    move_modes_to_specific_band(file_name)
    move_restof_to_specific_band(file_name)
    local changes = uci:changes()
    if utils.tableLength(changes) > 0 then
        uci:commit(file_name)
    end
end

for _, file_name in pairs(uci_files) do
    migrate_file(file_name)
end

print('migrate-wifi-modes: migration finished, now run lime-config')