Add i18n support and translation for zh-CN (#394)

Relative issue: #223

---------

Co-authored-by: Erik Vroon <[email protected]>
Co-authored-by: Erik Vroon <[email protected]>

frontend/next-i18next.config.js

@@ -0,0 +1,7 @@
+/** @type {import('next-i18next').UserConfig} */
+module.exports = {
+  i18n: {
+    locales: ['en', 'zh-CN'],
+    defaultLocale: 'en',
+  },
+};

frontend/next.config.js

@@ -1,3 +1,4 @@
+const { i18n } = require('./next-i18next.config.js');
 const withBundleAnalyzer = require('@next/bundle-analyzer')({
   enabled: process.env.ANALYZE === 'true',
 });
@@ -7,4 +8,5 @@ module.exports = withBundleAnalyzer({
   eslint: {
     ignoreDuringBuilds: true,
   },
+  i18n,
 });

frontend/package.json

@@ -37,10 +37,13 @@
     "cookies-next": "^4.1.0",
     "date-fns": "^3.0.1",
     "dayjs": "^1.11.10",
+    "i18next": "^23.7.11",
     "next": "^14.0.3",
+    "next-i18next": "^15.1.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-ellipsis-text": "^1.2.1",
+    "react-i18next": "^13.5.0",
     "react-icons": "^4.12.0",
     "react-qr-code": "^2.0.12",
     "react-redux": "^9.0.2",

frontend/public/locales/en/common.json

@@ -0,0 +1,218 @@
+{
+  "not_found_title": "You have found a secret place.",
+  "not_found_description": "Unfortunately, this is only a 404 page. You may have mistyped the address, or the page has been moved to another URL.",
+  "back_home_nav": "Take me back to home page",
+  "clubs_title": "Clubs",
+  "empty_name_validation": "Name cannot be empty",
+  "empty_email_validation": "Invalid email",
+  "empty_password_validation": "Password cannot be empty",
+  "too_short_name_validation": "Name is too short",
+  "too_short_dashboard_link_validation": "Dashboard link is short",
+  "too_short_password_validation": "Password is too short",
+  "invalid_email_validation": "Invalid email",
+  "invalid_password_validation": "Invalid password",
+  "create_account_title": "Create a new account",
+  "create_account_alert_title": "Unavailable",
+  "create_account_alert_description": "Account creation is disabled on this domain for now since bracket is still in beta phase",
+  "create_account_button": "Create Account",
+  "email_input_label": "Email Address",
+  "email_input_placeholder": "Your email",
+  "name_input_label": "Name",
+  "name_input_placeholder": "Your name",
+  "password_input_label": "Password",
+  "password_input_placeholder": "Your password",
+  "back_to_login_nav": "Back to login page",
+  "tournaments_title": "Tournaments",
+  "tournament_title": "Tournament",
+  "login_success_title": "Login successful",
+  "welcome_title": "Welcome to",
+  "sign_in_title": "Sign in",
+  "forgot_password_button": "Forgot password?",
+  "edit_profile_title": "Edit Profile",
+  "match_filter_option_all": "All matches",
+  "match_filter_option_past": "Hide past matches",
+  "match_filter_option_current": "Current matches",
+  "name_filter_options_team": "Team names",
+  "name_filter_options_player": "Player names",
+  "view_dashboard_button": "View Dashboard",
+  "add_court_title": "Add Court",
+  "create_court_button": "Create Court",
+  "court_name_input_placeholder": "Best Court Ever",
+  "player_title": "Players",
+  "no_matches_description": "No matches yet",
+  "drop_match_alert_title": "Drop a match here",
+  "schedule_title": "Schedule",
+  "schedule_description": "Schedule all unscheduled matches",
+  "club_choose_title": "Please choose a club",
+  "start_time_choose_title": "Please choose a start time",
+  "duration_minutes_choose_title": "Please choose a duration of the matches",
+  "margin_minutes_choose_title": "Please choose a margin between matches",
+  "tournament_name_input_placeholder": "Best Tournament Ever",
+  "club_select_placeholder": "Pick a club for this tournament",
+  "planning_of_matches_legend": "Planning of matches",
+  "planning_of_matches_description": "Start of the tournament",
+  "match_duration_label": "Match duration (minutes)",
+  "time_between_matches_label": "Time between matches (minutes)",
+  "dashboard_settings_title": "Dashboard Settings",
+  "dashboard_link_label": "Dashboard link",
+  "dashboard_link_placeholder": "best_tournament",
+  "dashboard_public_description": "Allow anyone to see the dashboard of rounds and matches",
+  "miscellaneous_title": "Miscellaneous",
+  "miscellaneous_label": "Allow players to be in multiple teams",
+  "auto_assign_courts_label": "Automatically assign courts to matches",
+  "save_button": "Save",
+  "copy_dashboard_url_button": "Copy dashboard URL",
+  "copied_dashboard_url_button": "Copied dashboard URL",
+  "filter_stage_item_label": "Filter on stage item",
+  "filter_stage_item_placeholder": "No filter",
+  "team_title": "Team",
+  "current_matches_badge": "Current matches",
+  "next_matches_badge": "Next matches",
+  "no_round_title": "No round",
+  "no_round_description": "There are no rounds in this stage item yet",
+  "add_round_button": "Add Round",
+  "no_round_found_title": "No rounds found",
+  "no_round_found_description": "Please wait for the organiser to add them.",
+  "no_round_found_in_stage_description": "There are no rounds in this stage yet",
+  "tournament_not_started_title": "Tournament has not started yet",
+  "tournament_not_started_description": "Please wait for the tournament to start.",
+  "edit_name_button": "Edit name",
+  "delete_button": "Delete",
+  "active_badge_label": "Active",
+  "auto_create_matches_button": "Add new matches automatically",
+  "add_stage_button": "Add stage",
+  "next_stage_button": "Go to next stage",
+  "previous_stage_button": "Go to previous stage",
+  "multiple_teams_input_label": "Add multiple teams. Put every team on a separate line",
+  "multiple_teams_input_placeholder": "Team 1",
+  "multiple_players_input_label": "Add multiple players. Put every player on a separate line",
+  "multiple_players_input_placeholder": "Player 1",
+  "edit_details_tab_title": "Edit details",
+  "edit_password_tab_title": "Edit password",
+  "no_team_members_description": "No members",
+  "active_next_round_modal_title": "Assign times and courts to matches of next round",
+  "active_next_round_modal_description": "This will assign times and courts to matches of next round, which is the round after the current activated (green) round.",
+  "active_next_round_modal_choose_description": "You can choose to either (check the checkbox or not):",
+  "checkbox_status_checked": "Checked",
+  "checkbox_status_unchecked": "Unchecked",
+  "active_next_round_modal_choose_option_unchecked": "Use default timing (the next matches will be planned tightly after the matches of the active round end, taking margin into account)",
+  "active_next_round_modal_choose_option_checked": "Adjust the start times of the next matches to start immediately(now). This will be done by modifying the margin times of the matches in the previous round.",
+  "adjust_start_times_checkbox_label": "Adjust start time of matches in this round to the current time",
+  "plan_next_round_button": "Plan next round",
+  "edit_club_button": "Edit club",
+  "create_club_button": "Create club",
+  "club_name_input_placeholder": "Best Club Ever",
+  "team_count_select_elimination_label": "Number of teams advancing from the previous stage",
+  "team_count_select_elimination_placeholder": "2, 4, 8 etc.",
+  "team_count_input_round_robin_label": "Number of teams advancing from the previous stage",
+  "none": "None",
+  "at_least_two_team_validation": "Need at least two teams",
+  "stage_type_select_label": "Stage type",
+  "round_robin_label": "Round Robin",
+  "single_elimination_label": "Single Elimination",
+  "swiss_label": "Swiss",
+  "create_stage_item_button": "Create Stage Item",
+  "add_stage_item_modal_title": "Add stage item",
+  "remove_match_button": "Remove Match",
+  "negative_score_validation": "Score cannot be negative",
+  "negative_match_duration_validation": "Match duration cannot be negative",
+  "negative_match_margin_validation": "Match margin cannot be negative",
+  "edit_match_modal_title": "Edit Match",
+  "score_of_label": "Score of",
+  "custom_match_duration_label": "Custom match duration",
+  "customize_checkbox_label": "Customize",
+  "custom_match_margin_label": "Custom match margin",
+  "minutes": "minutes",
+  "at_least_one_player_validation": "Enter at least one player",
+  "active_players_checkbox_label": "These players are active",
+  "active_player_checkbox_label": "This player is active",
+  "player_name_input_placeholder": "Best Player Ever",
+  "save_players_button": "Save players",
+  "single_player_title": "Single Player",
+  "multiple_players_title": "Multiple Players",
+  "create_player_modal_title": "Create Player",
+  "add_player_button": "Add Player",
+  "edit_player": "Edit Player",
+  "delete_round_button": "Delete Round",
+  "edit_round": "Edit Round",
+  "round_name_input_placeholder": "Best Round Ever",
+  "active_round_checkbox_label": "This round is active",
+  "draft_round_checkbox_label": "This round is a draft round",
+  "home_title": "Home",
+  "home_spotlight_description": "Get to home page",
+  "clubs_spotlight_description": "View, add or delete clubs",
+  "user_settings_title": "User Settings",
+  "user_settings_spotlight_description": "Change name, email, password etc.",
+  "planning_title": "planning",
+  "planning_spotlight_description": "Change planning of matches",
+  "teams_title": "Teams",
+  "teams_spotlight_description": "View, add or delete teams",
+  "players_title": "Players",
+  "players_spotlight_description": "View, add or delete players",
+  "stage_title": "Stage",
+  "stage_spotlight_description": "Change the layout of the tournament",
+  "court_title": "Courts",
+  "court_spotlight_description": "View, add or delete courts",
+  "tournament_setting_title": "Tournament Settings",
+  "tournament_setting_spotlight_description": "Change the settings of the tournament",
+  "nothing_found_placeholder": "Nothing found ...",
+  "search_placeholder": "Search ...",
+  "at_least_one_team_validation": "Enter at least one team",
+  "active_teams_checkbox_label": "These teams are active",
+  "team_name_input_placeholder": "Best Team Ever",
+  "active_team_checkbox_label": "This team is active",
+  "team_member_select_placeholder": "Pick all that you like",
+  "team_member_select_title": "Team members",
+  "single_team": "Single Team",
+  "multiple_teams": "Multiple Teams",
+  "add_team_button": "Add Team",
+  "edit_team_title": "Edit Team",
+  "club_select_label": "Club",
+  "now_button": "NOW",
+  "logout_title": "Logout",
+  "user_title": "User",
+  "more_title": "More",
+  "website_title": "Website",
+  "github_title": "Github",
+  "api_docs_title": "API docs",
+  "elo_input_label": "Max ELO difference",
+  "only_recommended_input_group_label": "Only show teams that played less matches",
+  "only_recommended_radio_label": "Only recommended",
+  "all_matches_radio_label": "All matches",
+  "max_results_input_label": "Max results",
+  "iterations_input_label": "Iterations",
+  "delete_club_button": "Delete Club",
+  "title": "Title",
+  "name_field_text": "name",
+  "delete_court_button": "Delete Court",
+  "win_distribution_text_win": "wins",
+  "win_distribution_text_draws": "draws",
+  "win_distribution_text_losses": "losses",
+  "delete_player_button": "Delete Player",
+  "status": "Status",
+  "created": "Created",
+  "elo_score": "ELO score",
+  "swiss_score": "Swiss score",
+  "name_table_header": "Name",
+  "member_table_header": "Members",
+  "active": "Active",
+  "inactive": "Inactive",
+  "delete_team_button": "Delete Team",
+  "delete_tournament_button": "Delete Tournament",
+  "edit_tournament_button": "Edit Tournament",
+  "recommended_badge_title": "Recommended",
+  "upcoming_matches_empty_table_info": "upcoming matches",
+  "elo_difference": "ELO Difference",
+  "swiss_difference": "Swiss Difference",
+  "could_not_find_any_alert": "Could not find any",
+  "dropzone_accept_text": "Drop files here",
+  "dropzone_reject_text": "Image must be less than 10MB",
+  "dropzone_idle_text": "Upload logo",
+  "upload_placeholder": "Drop a file here to upload as tournament logo.",
+  "number_required": "Includes number",
+  "lowercase_required": "Includes lowercase letter",
+  "uppercase_required": "Includes uppercase letter",
+  "special_character_required": "Includes special character",
+  "8_characters_required": "Has at least 8 characters",
+  "create_tournament_button": "Create Tournament"
+}