+overview = """
+*Turbot help*
+Here is an overview of commands that Turbot makes available. You can
+actually get at all functionality by just typing `/hunt` and then
+clicking buttons that are provided in the result. But many operations
+will be much more efficient by using a special-purpose command, (such
+as `/solved SOLUTION`).
+
+Type `/help <command-name>` for more details on any command below.
+
+*Hunt creation and editing*
+ `/new [hunt]`: Create a new hunt (from any channel)
+ `/edit [hunt]`: Edit the current hunt (in a hunt or puzzle channel)
+
+*Puzzle creation and editing* (in a puzzle channel unless specified)
+ `/new [puzzle]`: Create a new puzzle (in a hunt or puzzle channel)
+ `/edit [puzzle]`: Edit the current puzzle
+ `/state <update>`: Capture the current state
+ `/solved <solution>`: Mark current puzzle solved
+ `/tag [+ADD_TAG|-REMOVE_TAG]`: Tag/untag current puzzle
+
+*Hunt overview and searching for puzzles*
+ `/hunt <search_terms>`: Search for puzzles (in a hunt/puzzle channel)
+ `/round <search_terms>`: Show puzzles in current round (puzzle channel)
+ `/puzzle`: Display state of current puzzle (puzzle channel)
+
+*Solving support* (from any channel)
+ `/rot [*|COUNT] <text_to_rotate>`: Perform a Caesar shift on text
+"""
+
+commands = {
+ "edit": {
+ "summary": "Edit the puzzle or hunt for the current channel",
+ "usage": "`/edit`, `/edit hunt`, `/edit puzzle`",
+ "details": ("This command will bring up a dialog window where you " +
+ "can edit the current hunt or puzzle. With `/edit` " +
+ "alone it will edit whatever is associated with the " +
+ "current channel (hunt or puzzle). With `/edit hunt` " +
+ "you can edit the hunt from a puzzle channel.")
+ },
+ "hunt": {
+ "summary": "Search for and display puzzles in the current hunt",
+ "usage": "`/hunt [unsolved|solved|all] [meta|plain] <search_terms>`",
+ "details": ("With `/hunt` alone, this command will display all " +
+ "unsolved puzzles in the current hunt. All output from " +
+ "`/hunt` is entirely private to you, so you do not need " +
+ "to worry about cluttering up the channel's chat " +
+ "traffic with this command." +
+ "\n\n" +
+ "The output for each puzzle will include all of the " +
+ "information displayed by the `/puzzle` command so see " +
+ "`/help puzzle` for details." +
+ "\n\n"
+ "An initial argument can be used to instead display " +
+ "only `solved` puzzles or `all` puzzles (both unsolved " +
+ "and solved). Additional arguments are search terms. " +
+ "Only puzzles that match all provided terms will be " +
+ " displayed. The terms can match the puzzle title, " +
+ " round title, puzzle URL, puzzle type (`meta` or " +
+ "`plain`), tags, or a puzzle's solution." +
+ "\n\n" +
+ "Use quotation marks in search terms to search for a " +
+ "phrase such as `/hunt \"good times\"`." +
+ "\n\n" +
+ "Search terms can include regular expression syntax." +
+ "\n\n" +
+ "This command also supports `/hunt new` and " +
+ "`/hunt edit` which are identical to `/new hunt` " +
+ "and `/edit hunt` so see `/help new` or `/help edit`" +
+ "for details.")
+ },
+ "new": {
+ "summary": "Create a new puzzle (or a new hunt)",
+ "usage": "`/new`, `/new puzzle`, `/new hunt`",
+ "details": ("With `/new` alone, this command will bring up a " +
+ "dialog window where you will be prompted for " +
+ "information to create a new puzzle. The only field " +
+ "required for a new puzzle is the puzzle's name " +
+ "but any additional information you have will be " +
+ "useful to add (such as an external URL for the puzzle.)" +
+ "\n\n" +
+ "A puzzle can be marked as a meta-puzzle and can be " +
+ "assigned to one or more rounds. If the round(s) for " +
+ "this puzzle already exist, simply click on them in " +
+ "the \"Round(s)\" field. If this is the first puzzle " +
+ "for a new round, then type the name of the round in " +
+ "the \"New round(s)\" field." +
+ "\n\n" +
+ "For the new puzzle, Turbot will create a Slack channel " +
+ "and a shared spreadsheet for the puzzle. It will also " +
+ "announce the new puzzle in the hunt's channel, where " +
+ "members of the hunt can click to join the puzzle's " +
+ "channel and then click through to the puzzle's sheet." +
+ "\n\n" +
+ "This command can also be issued as `/new hunt` from " +
+ "any channel to create an entirely new hunt.")
+ },
+ "puzzle": {
+ "summary": "Display the status of the current puzzle",
+ "usage": "`/puzzle`, `/puzzle new`, `/puzzle edit",
+ "details": ("When you issue `/puzzle` alone in a puzzle channel, " +
+ "Turbot will reply (privately to you) with all the " +
+ "information it has about the current puzzle. For all " +
+ "puzzles this includes the solved status (either an " +
+ "unchecked or checked checkbox), the puzzle title, " +
+ "links to the puzzle's external web page and sheet, " +
+ "the rounds of the puzzle, and tags, and the puzzle's " +
+ "state string." +
+ "\n\n" +
+ "If this is a meta-puzzle the output will also include " +
+ "the names (and solutions where known) of all other " +
+ "puzzles in the same round as the current puzzle." +
+ "\n\n" +
+ "This command also support `/puzzle new` and " +
+ "`/puzzle edit` which are identical to `/new puzzle` " +
+ "and `/edit puzzle` so see `/help new` and `/help edit` " +
+ "for details.")
+ },
+ "round": {
+ "summary": "Display puzzles in the same round as the current puzzle",
+ "usage": "`/round [unsolved|solved|all] [meta|plain] <search_terms>`",
+ "details": ("The `/round` command can be issued from any puzzle " +
+ "channel and will display (by default) all puzzles " +
+ "belonging to the same round(s) as the current puzzle." +
+ "\n\n"
+ "To filter to only solved or unsolved puzzles, issue " +
+ "`/round solved` or `/round unsolved` instead." +
+ "\n\n" +
+ "This command also supports all of the same options as " +
+ "the `/hunt` command for searching/filtering which " +
+ "puzzles to display. So see `/help hunt` for details.")
+ },
+ "rot": {
+ "summary": "Perform a Caesar shift rotation on some text",
+ "usage": "`/rot TEXT`, `/rot * TEXT`, `/rot COUNT TEXT`",
+ "details": ("This command performs a Caesar shift rotation on the " +
+ "text you provide to the command. An initial numeric " +
+ "argument indicates how many places through the " +
+ "alphabet each character should be rotated." +
+ "\n\n" +
+ "If the numeric argument is omitted, or is the " +
+ "character `*` this command will emit every possible " +
+ "rotation of the provided text." +
+ "\n\n"
+ "Note: Unlike commands such as `/hunt` or `/puzzle` the " +
+ "output from `/rot` will be presented to the current " +
+ "channel rather than privately to you. The idea behind " +
+ "this is that others working on the same puzzle might " +
+ "benefit from this output as well." +
+ "\n\n" +
+ "If you would like to execute this command privately, " +
+ "may issue it in a direct-message conversation with " +
+ "Turbot.")
+ },
+ "state": {
+ "summary": "Updates the state of this puzzle",
+ "usage": "`/state <WHERE THINGS STAND>`",
+ "details": ("This command allows you to capture a high-level " +
+ "description of the state of a puzzle. This is " +
+ "particularly useful when you are switching away from " +
+ "a puzzle to let the next solvers know the state of " +
+ "things." +
+ "\n\n" +
+ "Turbot will present the state string in every view it " +
+ "generates for the puzzle." +
+ "\n\n" +
+ "An example state string might be something like: " +
+ "`/state Grid is filled, but we need help on extraction`" +
+ " or similar.")
+ },
+ "solved": {
+ "summary": "Record the solution of a puzzle",
+ "usage": "`/solved SOLUTION HERE`",
+ "details": ("Once you've submitted a solution to the hunt's website " +
+ "and it has been confirmed, issue the `/solved` command " +
+ "so that Turbot knows the puzzle is solved. Turbot will " +
+ "report to the hunt's channel that the puzzle has been " +
+ "solved.")
+ },
+ "tag": {
+ "summary": "Add or remove a tag to a puzzle",
+ "usage": "`/tag NEW_TAG`",
+ "details": ("This command allows you to add brief descriptive tags " +
+ "to a puzzle. This might include puzzle types, specific " +
+ "domain knowledge, or metadata from the puzzle’s " +
+ "presentation which might be used elsewhere." +
+ "\n\n" +
+ "Tags can only consist of letters, numbers, and the " +
+ "underscore character `_`." +
+ "\n\n" +
+ "You can also add a tag by typing `/tag +TAG_TO_ADD` " +
+ "and remove a tag with `/tag -TAG_TO_REMOVE`.")
+ }
+}
+
+def turbot_help(args):
+ """The top-level implementation of the Turbot help system
+
+ With empty args, gives a summary of available commands.
+
+ With any command name, gives detailed help on that command.
+ """
+
+ if not args:
+ return overview
+
+ # We only look at the first word here
+ command = args.split(" ", 1)[0]
+
+ # Ignore any slash prefix the user may have given
+ if command[0] == '/':
+ command = command[1:]
+
+ if command not in commands:
+ valid = list(commands.keys())
+ valid.sort()
+ return "Unknown command: {}. Valid commands are: {}".format(
+ command, ", ".join(valid))
+
+ dict = commands[command]
+ return ("*Help on `/{}`*".format(command) +
+ "\n`/{}`: {}".format(command, dict["summary"]) +
+ "\nUsage: {}".format(dict["usage"]) +
+ "\n\n{}".format(dict["details"]))