tas_persistence.lua

local persistence = require("persistence")
local Tas = require("tas")

local module = {}

function module.save_tas(tas, file_name)
    local status = nil
    local save_data = tas:to_raw(Tas.SERIAL_MODS.NORMAL)
    local save_json = json.encode(save_data)

    local file, err
    local pcall_success, pcall_err = pcall(function()
        file, err = io.open_data(file_name, "w")
    end)
    if not pcall_success then
        err = pcall_err
    end
    if not file then
        status = "Failed to open TAS file for writing: "..tostring(err)
    else
        _, err = file:write(save_json)
        if err then
            status = "Failed to write to TAS file: "..tostring(err)
        else
            status = "TAS saved successfully"
        end
        file:close()
    end
    return status
end

function module.load_tas(file_name)
    local file, err
    local pcall_success, pcall_err = pcall(function()
        file, err = io.open_data(file_name, "r")
    end)
    if not pcall_success then
        err = pcall_err
    end
    if not file then
        return nil, "Failed to open TAS file for reading: "..tostring(err)
    end

    local load_json = file:read("*all")
    file:close()
    local success, result = persistence.json_decode(load_json, false)
    if not success then
        return nil, "Failed to decode TAS data from JSON: "..tostring(result)
    else
        local tas = Tas:from_raw(result, Tas.SERIAL_MODS.NORMAL)
        return tas, "TAS loaded successfully"
    end
end

function module.trim_tas_file_history()
    for i = #options.tas_file_history, options.tas_file_history_max_size + 1, -1 do
        options.tas_file_history[i] = nil
    end
end

function module.add_tas_file_history(new_file_name, new_name)
    if options.tas_file_history_max_size <= 0 then
        return
    end
    for i, item in ipairs(options.tas_file_history) do
        if item.file_name == new_file_name then
            table.remove(options.tas_file_history, i)
            break
        end
    end
    table.insert(options.tas_file_history, 1, {
        file_name = new_file_name,
        name = new_name
    })
    module.trim_tas_file_history()
end

return module