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#include "../../plugins/EpisodeNameParser.hpp"
namespace QuickMedia {
static bool has_season_in_name(std::string_view episode_name) {
size_t sep_count = 0;
size_t index = 0;
while(true) {
size_t next_index = episode_name.find(" - ", index);
if(next_index == std::string_view::npos)
break;
index = next_index + 3;
++sep_count;
}
return sep_count >= 2;
}
static bool is_whitespace(char c) {
return c == ' ' || c == '\n' || c == '\t' || c == '\v';
}
static std::string_view strip_left(std::string_view str) {
size_t i = 0;
for(; i < str.size(); ++i) {
if(!is_whitespace(str[i]))
break;
}
return str.substr(i);
}
static std::string_view strip_right(std::string_view str) {
long i = (long)str.size() - 1;
for(; i >= 0; --i) {
if(!is_whitespace(str[i]))
break;
}
return str.substr(0, i + 1);
}
static std::string_view episode_name_extract_group(std::string_view &episode_name) {
episode_name = strip_left(episode_name);
if(episode_name[0] == '[') {
size_t group_end_index = episode_name.find(']', 1);
if(group_end_index == std::string_view::npos)
return {};
std::string_view group = episode_name.substr(1, group_end_index - 1);
episode_name.remove_prefix(group_end_index + 1);
return group;
}
return {};
}
static std::string_view episode_name_extract_anime(std::string_view &episode_name) {
episode_name = strip_left(episode_name);
size_t episode_or_season_sep_index = episode_name.find(" - ");
if(episode_or_season_sep_index == std::string_view::npos)
episode_or_season_sep_index = episode_name.size();
std::string_view anime = episode_name.substr(0, episode_or_season_sep_index);
anime = strip_right(anime);
if(episode_or_season_sep_index + 3 > episode_name.size())
episode_name = {};
else
episode_name.remove_prefix(episode_or_season_sep_index + 3);
return anime;
}
static std::string_view episode_name_extract_season(std::string_view &episode_name) {
return episode_name_extract_anime(episode_name);
}
static bool is_num_real_char(char c) {
return (c >= '0' && c <= '9') || c == '.';
}
static std::string_view episode_name_extract_episode(std::string_view &episode_name) {
episode_name = strip_left(episode_name);
size_t i = 0;
for(; i < episode_name.size(); ++i) {
if(!is_num_real_char(episode_name[i]))
break;
}
if(i == 0)
return {};
std::string_view episode = episode_name.substr(0, i);
episode_name.remove_prefix(i + 1);
return episode;
}
std::optional<EpisodeNameParts> episode_name_extract_parts(std::string_view episode_name) {
EpisodeNameParts name_parts;
const bool has_season = has_season_in_name(episode_name);
name_parts.group = episode_name_extract_group(episode_name);
name_parts.anime = episode_name_extract_anime(episode_name);
if(name_parts.anime.empty())
return std::nullopt;
if(has_season)
name_parts.season = episode_name_extract_season(episode_name);
name_parts.episode = episode_name_extract_episode(episode_name);
if(name_parts.episode.empty())
return std::nullopt;
return name_parts;
}
}
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