Initialization: Loading movies and images

dependencies.lua

@@ -0,0 +1,4 @@
+
+yl_cinema.dependencies = {}
+
+yl_cinema.dependencies.json = dofile(yl_cinema.modpath .. "json.lua/json.lua")

init.lua

@@ -24,12 +24,11 @@ yl_cinema.information.additional = "This mod implements #9 of the Small Tasks: A
 dofile(yl_cinema.modpath .. "dependencies.lua")
 dofile(yl_cinema.modpath .. "config.lua")
 dofile(yl_cinema.modpath .. "setup.lua")
---dofile(yl_cinema.modpath .. "privs.lua")
 dofile(yl_cinema.modpath .. "internal.lua")
-dofile(yl_cinema.modpath .. "api.lua")
+--dofile(yl_cinema.modpath .. "api.lua")
 dofile(yl_cinema.modpath .. "initialize.lua")
-dofile(yl_cinema.modpath .. "features.lua")
-dofile(yl_cinema.modpath .. "chatcommands.lua")
+--dofile(yl_cinema.modpath .. "features.lua")
+--dofile(yl_cinema.modpath .. "chatcommands.lua")
 
 local mod_end_time = (core.get_us_time() - mod_start_time) / 1000000
 core.log("action", "[MOD] yl_cinema loaded in [" .. mod_end_time .. "s]")

initialize.lua

@@ -0,0 +1,29 @@
+local function load_movies()
+    local movie_save_path = yl_cinema.worldpath .. yl_cinema.settings.save_path
+    local movies, loaded_count, total_count = yl_cinema.load_movies(movie_save_path)
+    if loaded_count ~= total_count then
+        yl_cinema.warn(loaded_count .. "/" .. total_count .. " movies loaded.")
+    else
+        yl_cinema.action(loaded_count .. "/" .. total_count .. " movies loaded.")
+    end
+    return movies
+end
+
+local function load_images(movies)
+    for movie_id, _ in pairs(movies) do
+        local loaded_count, total_count = yl_cinema.load_images_of_movie(movie_id)
+        if loaded_count ~= total_count then
+            yl_cinema.warn(loaded_count .. "/" .. total_count .. " images loaded for movie " .. movie_id)
+        else
+            yl_cinema.action(loaded_count .. "/" .. total_count .. " images loaded for movie " .. movie_id)
+        end
+    end
+end
+
+local function run_each_serverstart()
+    local movies = load_movies()
+    core.after(0, load_images, movies)
+    yl_cinema.movies = movies
+end
+
+run_each_serverstart()

internal.lua

@@ -1,53 +1,186 @@
+-- The functions and variables in this file are only for use in the mod itself.
+-- Those that do real work should be local and wrapped in public functions
+-- Minetest connector
+local json = yl_cinema.dependencies.json
 
--- The functions and variables in this file are only for use in the mod itself. Those that do real work should be local and wrapped in public functions
-
-local debug = true
-
-local function say(text)
-    if yl_template.debug then
-        core.log("action", "[MOD] yl_template : " .. text)
-    end
+local function warn(text)
+    core.log("warning", "[yl_cinema] " .. text)
 end
 
-local function save_path(file)
-    return yl_template.worldpath .. file .. ".json"
+local function action(text)
+    core.log("action", "[yl_cinema] " .. text)
 end
 
-local function save_json(filename, content)
-    if type(filename) ~= "string" or type(content) ~= "table" then
+-- JSON decoder
+local function parse_json(json_str)
+    return json.decode(json_str)
+end
+
+local function get_files_in_directory(folderpath)
+    return core.get_dir_list(folderpath, true)
+end
+
+-- internal functions
+
+local function mediacallback(name)
+    local target_name = name or ""
+    action("mediacallback: File pushed to player " .. target_name)
+end
+
+local function string_to_recipe(s)
+    local recipe = string.split(s, ",")
+    if #recipe ~= 9 then
         return false
     end
-    local savepath = save_path(filename)
-    local savecontent = minetest.write_json(content)
-    return minetest.safe_file_write(savepath, savecontent)
+    return {{recipe[1], recipe[2], recipe[3]}, {recipe[4], recipe[5], recipe[6]}, {recipe[7], recipe[8], recipe[9]}}
 end
 
+local function path_of_movie(movie_id)
+    return yl_cinema.worldpath .. yl_cinema.settings.save_path .. DIR_DELIM .. movie_id .. DIR_DELIM .. movie_id ..
+               ".json"
+end
 
-local function load_json(filename) -- returns the saved dialog
-    local savepath = save_path(filename)
+local function path_of_image(movie_id, name)
+    return yl_cinema.worldpath .. yl_cinema.settings.save_path .. DIR_DELIM .. movie_id .. DIR_DELIM .. "textures" ..
+               DIR_DELIM .. name
+end
 
-    local file, err = io.open(savepath, "r")
-    if err then
-        return {}
-    end
-    io.input(file)
-    local savecontent = io.read()
-    local content = minetest.parse_json(savecontent)
-    io.close(file)
-
-    if type(content) ~= "table" then
-        content = {}
+local function read_json_file(path)
+    local file = io.open(path, "r")
+    if not file then
+        return false, "Error opening file: " .. path
     end
 
-    return content
+    local content = file:read("*all")
+    file:close()
+
+    if not content then
+        return false, "Error reading file: " .. path
+    end
+
+    return true, parse_json(content)
+end
+
+local function get_movie(movie_id)
+    return yl_cinema.movies[movie_id] or {}
+end
+
+local function load_image(path)
+    local options = {
+        filepath = path
+    }
+    return core.dynamic_add_media(options, mediacallback)
+end
+
+local function load_images_of_movie(movie_id)
+    local movie = get_movie(movie_id)
+    local loaded_count = 0
+    for _, file in ipairs(movie.files) do
+        local path = path_of_image(movie_id, file)
+        local success = load_image(path)
+        if success then
+            loaded_count = loaded_count + 1
+        end
+    end
+
+    return loaded_count, #movie.files
+end
+
+local function load_movie(movie_id)
+    local file_path = path_of_movie(movie_id)
+    local success, movie_data = read_json_file(file_path)
+    local movie = "Error loading movie metadata from file " .. dump(file_path) .. ": " .. dump(movie_data)
+    if success then
+        movie = movie_data
+    else
+        warn(movie)
+    end
+    return success, movie
+end
+
+local function load_movies(movies_directory)
+    local movies = {}
+    local loaded_count = 0
+    local total_count = 0
+
+    local movie_files = get_files_in_directory(movies_directory)
+    for _, movie_id in ipairs(movie_files) do
+        local success, movie = load_movie(movie_id)
+        if success then
+            movies[movie_id] = movie
+            loaded_count = loaded_count + 1
+        end
+    end
+
+    return movies, loaded_count, #movie_files
+end
+
+local function search_movies(movies, search_term)
+    local results = {}
+    for _, movie in ipairs(movies) do
+        if string.match(movie.id, search_term) or string.match(movie.name, search_term) or
+            string.match(movie.description, search_term) then
+            table.insert(results, movie.id)
+        end
+    end
+    return results
 end
 
 -- Public functions wrap the private ones, so they can be exchanged easily
 
-function yl_template.load(filename, ...)
-    return load_json(filename, ...)
+function yl_cinema.load(filename, ...)
+    return read_json_file(filename, ...)
 end
 
-function yl_template.save(filename, content, ...)
-    return save_json(filename, content, ...)
-end
+---
+-- Loads the metadata for all movies in the given directory.
+--
+-- @param movies_directory (string) The directory to search for movie metadata files.
+-- @return A table of movies, where each movie is represented as a table with the following fields:
+--  - id (string): The ID of the movie.
+--  - name (string): The name of the movie.
+--  - description (string): A description of the movie.
+--  - title_texture (string): The path to the texture to use as the movie's title.
+--  - replay (boolean): Whether the movie can be replayed.
+--  - pages (table): A table of pages for the movie. Each page is represented as a table with the following fields:
+--    - order (number): The order in which the page should be displayed.
+--    - texturename (string): The path to the texture to use for the page.
+--    - caption (string): The caption to display for the page.
+--    - captionposx (number): The x position of the caption.
+--    - captionposy (number): The y position of the caption.
+--    - duration (number): The duration to display the page in seconds.
+-- @return The number of successfully loaded movies.
+-- @return The total number of movies attempted to load.
+--
+
+function yl_cinema.load_movies(movies_directory, ...)
+    return load_movies(movies_directory, ...)
+end
+
+---
+-- Searches the list of movies for a given search term.
+--
+-- @param movies (table) The list of movies to search.
+-- @param searchterm (string) The search term to match against.
+-- @return A table of movieids that match the search term.
+--
+-- Each movie is represented as a table with the following fields:
+--  - id (string): The ID of the movie.
+--  - name (string): The name of the movie.
+--  - description (string): A description of the movie.
+--
+
+function yl_cinema.search_movies(movies, search_term, ...)
+    return search_movies(movies, search_term, ...)
+end
+
+function yl_cinema.path_of_movie(movie_id, ...)
+    return path_of_movie(movie_id, ...)
+end
+
+function yl_cinema.load_images_of_movie(movie_id, ...)
+    return load_images_of_movie(movie_id, ...)
+end
+
+yl_cinema.action = action
+yl_cinema.warn = warn