# $Id: QuoteEngine.tcl,v 1.20 2004/03/30 21:52:12 James Exp $

###############################################################################
# QuoteEngine for eggdrop bots
# Copyright (C) James Michael Seward 2003
#
# This program is covered by the GPL, please refer the to LICENCE file in the
# distribution.
###############################################################################

# load the extension
# CHANGE ME: My main bot's server has broken TCL, so I need the line below:
#load /usr/local/lib/mysqltcl-2.12/libmysqltcl2.12.so
#load /home/notopic/lib/mysqltcl-2.50/libmysqltcl2.50.so
# BUT most people should get away with this if their server's setup right:
package require mysqltcl

# Use only one or other of the above!

# connect to database
# CHANGE ME
proc quote_connect { } {
	global db_handle
		
	set db_handle [mysqlconnect -host localhost -user notopic -password moo -db quotes]

	if {$db_handle != ""} {
		return 1
	} else {
		return 0
	}
}

# url to site
# CHANGE ME (use blank if you're not using the PHP script)
set php_page "http://sakaki.jamesoff.net/~notopic/"

# automatically spew "relevant" quotes?
set quote_automatic 1

# minimum number of seconds between automatic quotes
set quote_automatic_minimum [expr 3 * 3600]

# bind commands CHANGE as needed
# use ".chanset #channel [+/-]quoteengine" to enable/disable individual
# channels
bind pub "m|fov" !addquote quote_add
bind pub "m|fov" !randquote quote_rand
bind pub "m|fov" !fetchquote quote_fetch
bind pub "m|fov" !getquote quote_fetch
bind pub "m|fov" !findquote quote_search
bind pub "m|fov" !searchquote quote_search
bind pub "m|fov" !urlquote quote_url
bind pub "-|-" !quoteurl quote_url
bind pub "m|ov" !delquote quote_delete
bind pub "m|ov" !deletequote quote_delete
bind pub "m|ov" !quotestats quote_stats
bind pub "-|-" !quoteversion quote_version
bind pub "-|-" !quotehelp quote_help
bind pubm "-|ov" * quote_auto

# a user with this flag(s) can't use the script at all
set quote_noflags "Q|Q"

# maximum number of quotes to show in channel when searching before switching
# to /msg'ing the user
set quote_chanmax 5

# shrink multiple spaces to single spaces when fetching a quote?
set quote_shrinkspaces 1

### code starts here (no need to edit stuff below currently)
#1.00
set quote_version "cvs"
set quote_auto_last(blah) 0

#add setting to channel
setudef flag quoteengine

### procedures start here

################################################################################
# quote_ping
# Check we're still connected to mysql
################################################################################
proc quote_ping { } {
	global db_handle

	if [::mysql::ping $db_handle] {
		return 1
	} else {
		return [quote_connect]
	}
}

################################################################################
# quote_add
# !addquote <text>
#   Adds a quote to the database
################################################################################
proc quote_add { nick host handle channel text } {
  global db_handle quote_noflags

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

  if {($handle == "") || ($handle == "*")} {
    set handle $nick
  }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

  set sql "INSERT INTO quotes VALUES(null, "
  append sql "'$handle', "
  append sql "'$nick!$host', "
  set text [mysqlescape $text]
  append sql "'$text', "
  append sql "'$channel', "
  append sql "'[clock seconds]')"

  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlexec $db_handle $sql]
  if {$result != 1} {
    putlog "An error occurred with the sql :("
  } else {
    set id [mysqlinsertid $db_handle]
    puthelp "PRIVMSG $channel :Quote \002$id\002 added"
		if [regexp {[^]> ]\|[[<0-9(]} $text] {
			puthelp "PRIVMSG $nick :It's possible you didn't split the lines quite right on the quote you just added. For best results, split lines in quotes using '|' with a space each side. To delete the quote you just added and fix it, do '!delquote $id' in the channel."
		}
  }
}


################################################################################
# quote_rand
# !randquote [--all|--channel #channel]
#   Gets a random quote from the database for the current channel
#     --all: Choose from entire database
#     --channel: Choose from given channel
#     -c: Shortcut for --channel
################################################################################
proc quote_rand { nick host handle channel text } {
  global db_handle quote_noflags quote_shrinkspaces

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

  set where_clause "WHERE channel='$channel'"
  if [regexp -- "--?all" $text] {
    set where_clause ""
  }

  if [regexp -- "--?c(hannel)?( |=)(.+)" $text matches skip1 skip2 newchan] {
    set where_clause "WHERE channel='[mysqlescape $newchan]'"
  }

  set sql "SELECT * FROM quotes $where_clause ORDER BY RAND() LIMIT 1"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlquery $db_handle $sql]

  if {[set row [mysqlnext $result]] != ""} {
    set id [lindex $row 0]
    set quote [lindex $row 3]
    set by [lindex $row 1]
    set when [clock format [lindex $row 5] -format "%Y/%m/%d %H:%M"]
		catch {
			if {$quote_shrinkspaces == 1} {
				regsub -all "  +" $quote " " quote
			}
			set quote [stripcodes bcruag $quote]
		}

    puthelp "PRIVMSG $channel :\[\002$id\002\] $quote"
  } else {
    puthelp "PRIVMSG $channel :Couldn't find a quote :("
  }
  mysqlendquery $result
}


################################################################################
# quote_fetch
# !getquote <id>
#   Fetches the given quote from the database
################################################################################
proc quote_fetch { nick host handle channel text } {
  global db_handle quote_noflags quote_shrinkspaces

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

	set verbose ""

  if {![regexp {(-v )?([0-9]+)} $text matches verbose quote_id]} {
    puthelp "PRIVMSG $channel: Use: !getquote \[-v\] <id>"
    return 0
  }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

	
	set text [mysqlescape $quote_id]
  set sql "SELECT * FROM quotes WHERE id='$text'"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlquery $db_handle $sql]

  if {[set row [mysqlnext $result]] != ""} {
    set id [lindex $row 0]
		set quote [lindex $row 3]
		catch {
			if {$quote_shrinkspaces == 1} {
				regsub -all "  +" $quote " " quote
			}
			set quote [stripcodes bcruag $quote]
		}
    set by [lindex $row 1]
    set when [clock format [lindex $row 5] -format "%Y/%m/%d %H:%M"]
    set chan [lindex $row 4]
    if {$chan != $channel} {
      puthelp "PRIVMSG $channel :\[\002$id\002\] $quote"
      if {$verbose != ""} {
				puthelp "PRIVMSG $channel :\[\002$id\002\] From $chan, by added $by at $when."
			}
    } else {
      puthelp "PRIVMSG $channel :\[\002$id\002\] $quote"
			if {$verbose != ""} {
				puthelp "PRIVMSG $channel :\[\002$id\002\] Added by $by at $when."
			}
    }
  } else {
    puthelp "PRIVMSG $channel :Couldn't find quote $text"
  }

  mysqlendquery $result
}


################################################################################
# quote_search
# !findquote [--all] [--channel #channel] [--count <int>] <text>
#   Find all quotes with "text" in them. (in random order)
#   The first 5 (by default) are listed in the channel. The rest are /msg'd to
#   you up to the maximum (default 5).
#     --all: Search all channels, not just current one
#     --channel: Search given channel
#     --count <int>: Find this many total quotes
#     -c: Shortcut for --channel
#     -n: Shortcut for --count
#   Note this is a SQL search, so use % as the wildcard (instead of *)
#   The script automatically puts %s around your text when searching.
################################################################################
proc quote_search { nick host handle channel text } {
  global db_handle php_page quote_noflags quote_chanmax

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

  if {$text == ""} {
    puthelp "PRIVMSG $channel :Use: !findquote <text>"
    return 0
  }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

  set where_clause "AND channel='[mysqlescape $channel]'"
  if [regexp -- "--?all " $text matches skip1] {
    set where_clause ""
    regsub -- $matches $text "" text
  }

  if [regexp -- {--?c(hannel)?( |=)([^ ]+)} $text matches skip1 skip2 newchan] {
    set where_clause "AND channel='[mysqlescape $newchan]'"
    regsub -- $matches $text "" text
  }

  set limit 5
  if [regexp -- {--?count( |=)([^ ]+)} $text matches skip1 count] {
    set limit [mysqlescape $count]
    regsub -- $matches $text "" text
  }

  if [regexp -- {-n( )?([^ ]+)} $text matches skip1 count] {
    set limit [mysqlescape $count]
    regsub -- $matches $text "" text
  }

  set sql "SELECT * FROM quotes WHERE quote LIKE '%[mysqlescape $text]%' $where_clause ORDER BY RAND()"

  putloglev d * "QuoteEngine: executing $sql"

  if {[mysqlsel $db_handle $sql] > 0} {

    set count 0
    mysqlmap $db_handle {id qnick qhost quote qchannel qts} {
      if {$count == $limit} {
        break
      }

      if {$count == $quote_chanmax} {
        puthelp "PRIVMSG $nick :Rest of matches for your search '$text' follow in private:"
      }

      if {$count < $quote_chanmax} {
        puthelp "PRIVMSG $channel :\[\002$id\002\] $quote"
      } else {
        puthelp "PRIVMSG $nick :\[\002$id\002\] $quote"
      }
      incr count
    }

    set remaining [mysqlresult $db_handle rows?]
    if {$remaining > 0} {
			if {$count < $quote_chanmax} {
				set command "PRIVMSG $channel :"
			} else {
				set command "PRIVMSG $nick :"
			}

      regsub "#" $channel "" chan
      if {$php_page != ""} {
        puthelp "${command}(Plus $remaining more matches: $php_page?filter=${text}&channel=${chan}&search=search)"
      } else {
        puthelp "${command}Plus $remaining other matches"
      }
    } else {
      if {$count == 1} {
        puthelp "${command}(All of 1 match)"
      } else {
        puthelp "${command}(All of $count matches)"
      }
    }
  } else {
    puthelp "PRIVMSG $channel :No matches"
  }
}


################################################################################
# quote_url
# !quoteurl
#   Gives the web of the web interface
################################################################################
proc quote_url { nick host handle channel text } {
  global php_page quote_noflags

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

  if {$php_page != ""} {
# changed for better url by dubkat
  puthelp "PRIVMSG $channel :${php_page}?channel=[string range $channel 1 end]"
  } else {
    puthelp "PRIVMSG $channel :Not available."
  }
}


################################################################################
# quote_stats
# !quotestats
#   Give some simple statistics about the db, channel, and user
################################################################################
proc quote_stats { nick host handle channel text } {
  global db_handle quote_noflags

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

  set sql "SELECT COUNT(*) AS total FROM quotes WHERE channel='$channel'"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlquery $db_handle $sql]
  set total 0
  set chan 0

  if {[set row [mysqlnext $result]] != ""} {
    set total [lindex $row 0]
  }

  mysqlendquery $result

  set sql "SELECT COUNT(*) AS total FROM quotes"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlquery $db_handle $sql]

  if {[set row [mysqlnext $result]] != ""} {
    set chan [lindex $row 0]
  }

  mysqlendquery $result

  set sql "SELECT COUNT(*) AS total FROM quotes WHERE nick='$handle' AND channel='$channel'"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlquery $db_handle $sql]

  if {[set row [mysqlnext $result]] != ""} {
    set by_handle [lindex $row 0]
  }

  mysqlendquery $result

  puthelp "PRIVMSG $channel :Quotes for $channel: \002$total\002 (total: $chan). You have added \002$by_handle\002 quotes in this channel."
}


################################################################################
# quote_delete
# !delquote <id>
#   Removes a quote from the database. You can only delete the quote if you
#   are a bot/channel master, or if you're the person who added it.
################################################################################
proc quote_delete  { nick host handle channel text } {
  global db_handle quote_noflags

  if {![channel get $channel quoteengine]} {
    return 0
  }

  if [matchattr $handle $quote_noflags] { return 0 }

	if {![quote_ping]} {
		putquick "PRIVMSG $channel :Sorry, lost database connection :("
		return 0
	}

  set text [mysqlescape $text]
  if {![matchattr $handle m|m $channel]} {
    set sql "SELECT nick FROM quotes WHERE id='$text'"
    putloglev d * "QuoteEngine: executing $sql"

    set result [mysqlquery $db_handle $sql]
    set owner [lindex [mysqlnext $result] 0]
    mysqlendquery $result
    if {$owner != $handle} {
      puthelp "NOTICE $nick :You cannot delete that quote."
      return 0
    }
  }

  set sql "DELETE FROM quotes WHERE id='$text'"
  putloglev d * "QuoteEngine: executing $sql"

  set result [mysqlexec $db_handle $sql]
  if {$result != 1} {
    puthelp "PRIVMSG $channel :An error occurred deleting the quote :("
    return 0
  } else {
    puthelp "PRIVMSG $channel :Deleted quote $text"
  }
}


################################################################################
# quote_version
# !quoteversion
#   Gives the version of the script
################################################################################
proc quote_version { nick host handle channel text } {
  global quote_version quote_noflags

  if [matchattr $handle $quote_noflags] { return 0 }

  puthelp "PRIVMSG $channel :This is the QuoteEngine version $quote_version by JamesOff (http://www.jamesoff.net/go/quoteengine)"
  return 0
}


################################################################################
# quote_help
# !quotehelp
#   Handle help requests
################################################################################
 proc quote_help { nick host handle channel text } {
  global quote_noflags

  if [matchattr $handle $quote_noflags] { return 0 }

  puthelp "PRIVMSG $nick :Commands for the QuoteEngine script:"
  puthelp "PRIVMSG $nick :  !addquote <quote text> - adds a quote to the database"
  puthelp "PRIVMSG $nick :  !delquote <id> - deletes a quote. You must be either a bot/channel master or the person who added the quote to delete it."
  puthelp "PRIVMSG $nick :  !randquote \[--all\] \[--channel=#channel\] \[-c #channel\] - fetches a random quote from the current channel. --all chooses from all channels, not just the one the command is executed from. --channel and -c choose only from the given channel."
  puthelp "PRIVMSG $nick :  !getquote \[-v\]<id> - fetches the quote with number <id>. Gives info of who added it if -v is specified."
  puthelp "PRIVMSG $nick :  !findquote \[--all\] \[--channel=#channel\] \[-c #channel\] \[--count <int>\] \[-n <int>\] <text> - finds up to <int> (default 5) quotes containing 'text'. Optional parameters same as !randquote. -n is a shortcut for --count."
  puthelp "PRIVMSG $nick :  !quoteurl - get the URL for the web interface to the quotes"
  puthelp "PRIVMSG $nick :  !quotestats - get some information"
  puthelp "PRIVMSG $nick :  !quoteversion - get the version of the script"
  puthelp "PRIVMSG $nick :  Some commands have synonyms: !deletequote, !fetchquote, !urlquote, and !searchquote."
  puthelp "PRIVMSG $nick :  (End of help)"
  return 0
}

proc quote_auto { nick host handle channel text } {
	global quote_automatic quote_shrinkspaces
	if {$quote_automatic == 0} {
		return
	}

  if {![channel get $channel quoteengine]} {
		return
	}

	global quote_auto_last db_handle quote_automatic_minimum

	if [info exists quote_auto_last($channel)] {
		set diff [expr [clock seconds] - $quote_auto_last($channel)]
		putloglev 1 * "diff for $channel is $diff"
	} else {
		set diff [expr $quote_automatic_minimum + 1]
		putloglev d * "initialising diff for $channel"
		set quote_auto_last($channel) 0
	}

	if {$diff < $quote_automatic_minimum} {
		return
	}

	set words [split $text]
	set newwords [list]

	foreach word $words {
		if [regexp -nocase {^[a-z0-9']{4,}$} $word] {
			if {[lsearch [list "yeah" "about" "hello" "their" "there" "that's" "can't" "morning" "won't"] $word] > -1} {
				continue
			}

			if [onchan $word] {
				continue
			}

			lappend newwords [mysqlescape $word]
		}
	}

	if {[llength $newwords] == 0} {
		return
	}

	putloglev d * "quoteengine: candidate words for random quote in $channel: $newwords"

	if {![quote_ping]} {
		return
	}

	set thisword [pickRandom $newwords]
	putloglev d * "quoteengine: using $thisword"

	if {[rand 100] < 95} {
		putloglev d * "quoteengine: not random enough, ignoring"
		return
	}

	
	set where_clause "WHERE channel='[mysqlescape $channel]' AND quote LIKE '%$thisword%' ORDER BY RAND() LIMIT 1"
	putloglev d * "quoteengine: $where_clause"
	set sql "SELECT * FROM quotes $where_clause"

	set result [mysqlquery $db_handle $sql]
	if {[set row [mysqlnext $result]] != ""} {
		set id [lindex $row 0]
		set quote [lindex $row 3]

		catch {
			if {$quote_shrinkspaces == 1} {
				regsub -all "  +" $quote " " quote
			}
			set quote [stripcodes bcruag $quote]
		}

		putlog "RANDOM QUOTE: $quote ($id)"
		puthelp "PRIVMSG $channel :\[\002$id\002\] $quote"
		set quote_auto_last($channel) [clock seconds]
	}
	mysqlendquery $result

}


quote_connect
putlog "QuoteEngine $quote_version loaded"