init

scripts/auto-save-state.lua

@@ -0,0 +1,70 @@
+-- Runs write-watch-later-config periodically
+
+local options = require 'mp.options'
+local msg = require 'mp.msg'
+
+o = {
+    save_interval = 60,
+    percent_pos = 99,
+}
+options.read_options(o)
+
+local can_delete = true
+local can_save = true
+local path = nil -- only set after file success load, reset to nil when file unload.
+
+local function reset()
+    path = nil
+end
+
+-- set vars when file success load
+local function init()
+    path = mp.get_property("path")
+end
+
+local function save()
+    if not can_save then return end
+    local watch_later_list = mp.get_property("watch-later-options", {})
+    if mp.get_property_bool("save-position-on-quit") then
+        msg.debug("saving state")
+        if not watch_later_list:find("start") then
+            mp.commandv("change-list", "watch-later-options", "append", "start")
+        end
+        mp.command("write-watch-later-config")
+    end
+end
+
+local function save_if_pause(_, pause)
+    if pause then save() end
+end
+
+local function pause_timer_while_paused(_, pause)
+    if pause then timer:stop() else timer:resume() end
+end
+
+-- save watch-later-config when file unloading
+local function save_or_delete()
+    if not can_delete then return end
+    local eof = mp.get_property_bool("eof-reached")
+    local percent_pos = mp.get_property_number("percent-pos")
+    if eof or percent_pos and (percent_pos == 0 or percent_pos >= o.percent_pos) then
+        can_delete = true
+        if path ~= nil then
+            msg.debug("deleting state: percent_pos=0 or eof")
+            mp.commandv("delete-watch-later-config", path)
+        end
+    elseif path ~= nil then
+        save()
+    end
+    reset()
+end
+
+mp.register_script_message("skip-delete-state", function() can_delete = false end)
+
+timer = mp.add_periodic_timer(o.save_interval, save)
+mp.observe_property("pause", "bool", pause_timer_while_paused)
+
+mp.observe_property("pause", "bool", save_if_pause)
+
+mp.register_event("file-loaded", init)
+mp.add_hook("on_unload", 50, save_or_delete) -- after mpv saving state