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pass the api/v1/playlists with videos before the offset

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diogo 2021-07-17 19:43:03 +02:00 committed by Samantaz Fox
parent 65e45c4079
commit 0a9e19646a
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2 changed files with 29 additions and 8 deletions
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7
src/invidious/playlists.cr
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@ -439,7 +439,8 @@ def get_playlist_videos(db, playlist, offset, locale = nil, continuation = nil)
else
videos = [] of PlaylistVideo
until videos.size >= 50 || videos.size == playlist.video_count || offset >= playlist.video_count
original_offset = offset
until videos.size >= 100 || videos.size == playlist.video_count || offset >= playlist.video_count
if offset >= 100
# Normalize offset to match youtube's behavior (100 videos chunck per request)
normalized_offset = (offset / 100).to_i64 * 100_i64
@ -459,7 +460,7 @@ def get_playlist_videos(db, playlist, offset, locale = nil, continuation = nil)
end
end
else
until videos[0].index == offset
until videos[0].index == original_offset
videos.shift
if videos.size == 0
break
@ -550,7 +551,7 @@ def template_playlist(playlist)
playlist["videos"].as_a.each do |video|
html += <<-END_HTML
<li class="pure-menu-item">
<li class="pure-menu-item" id="#{video["videoId"]}">
<a href="/watch?v=#{video["videoId"]}&list=#{playlist["playlistId"]}&index=#{video["index"]}">
<div class="thumbnail">
<img class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">

28
src/invidious/routes/api/v1/misc.cr
View File

@ -24,7 +24,7 @@ module Invidious::Routes::API::V1::Misc
offset ||= env.params.query["page"]?.try &.to_i?.try { |page| (page - 1) * 100 }
offset ||= 0
continuation = env.params.query["continuation"]?
video_id = env.params.query["continuation"]?
format = env.params.query["format"]?
format ||= "json"
@ -46,12 +46,32 @@ module Invidious::Routes::API::V1::Misc
return error_json(404, "Playlist does not exist.")
end
# includes into the playlist a maximum of 20 videos, before the offset
lookback = 20
if offset > 0
lookback = offset < lookback ? offset : lookback
response = playlist.to_json(offset - lookback, locale)
json_response = JSON.parse(response)
else
# Unless the continuation is really the offset 0, it becomes expensive.
# It happens when the offset is not set.
# First we find the actual offset, and then we lookback
# it shouldn't happen often though
response = playlist.to_json(offset, locale, continuation: continuation)
json_response = JSON.parse(response)
if json_response["videos"].as_a[0]["index"] != offset
offset = json_response["videos"].as_a[0]["index"].as_i
lookback = offset < 50 ? offset : 50
response = playlist.to_json(offset - lookback, locale)
json_response = JSON.parse(response)
end
end
if format == "html"
response = JSON.parse(response)
playlist_html = template_playlist(response)
index, next_video = response["videos"].as_a.skip(1).select { |video| !video["author"].as_s.empty? }[0]?.try { |v| {v["index"], v["videoId"]} } || {nil, nil}
playlist_html = template_playlist(json_response)
index, next_video = json_response["videos"].as_a.skip(1 + lookback).select { |video| !video["author"].as_s.empty? }[0]?.try { |v| {v["index"], v["videoId"]} } || {nil, nil}
response = {
"playlistHtml" => playlist_html,