FactionDiscount AutoStock

If you're like me, you like to avoid paying unnecessary fees at vendors.
FactionDiscount AutoStock is an addon that automatically stocks up on specified items (usually reagents/poisons) when you visit a vendor providing a specified reputation level (and hence, a specified Faction Discount). I always avoided autobuy addons because they would blatantly buy at any merchant, and I'd lose my 20% exalted discount just by visiting a non-factioned vendor. Hence, I decided to write an addon that can be set to buy only when I receive a specified faction discount.
FactionDiscount AutoStock is a sister addon to FactionDiscount AutoRepair!


How is FactionDiscount AutoStock different from other autobuy addons?
As mentioned above, FactionDiscount AutoStock lets you choose what discount is required before it automatically buys for you. Don't lose pocket change by buying at a non-factioned vendor when you didn't want to!
In addition, FactionDiscount AutoStock offers a number of easy-to-use features that make configuration a breeze and highly flexible.


Features

• autobuy at vendors only when you receive a certain faction discount
• Useable and configurable for any vendor-bought item
• Comes pre-packaged with class defaults (reagents/poisons) for level 80, enabled by a simple slash command. This also checks both of your specs to see if you have a glyph that removes the reagent cost!
• Overbuyer Protection! This only queues one set of purchases in a 5-second window, lowing the chance that you'll overbuy the items by attempting to buy another set of items before your inventory records receiving them. This reduces the chance that latency will make you spend too much.
• Only buy up to the amount you enter. In the case of items that are bought in a stack (example: Symbol of Kings, sold in 20s), it will buy as many as it can without going over your preference. (If you have 81 Symbols and a preference of 100, for instance, it won't buy any)
• Extremely flexible and quickly configurable using a set of slash commands

• Always Buy (i.e. neutral and above)
• Buy w/ Honored (and above) discounts
• Buy w/ Revered (and above) discounts
• Buy w/ Exalted discounts only

/fdas                                        -   Lists available commands
/fdas enable | disable                       -   Enables/Disables autobuying for the current character
/fdas status                                 -   Disables the enable state and discount threshold
/fdas class                                  -   Sets the class defaults for the current character (1 stack per item).  Only usable at level 80.
/fdas list                                   -   Lists all items your current character is set to autobuy at a vendor w/ the appropriate discount
/fdas clear                                  -   Clears all stock preferences for the current character
/fdas always | honored | revered | exalted   -   Sets the faction discount threshold required to autobuy
/fdas # [ItemLink]                           -   Sets the autobuy preferences for the Item, # quantity.  Quantities and Links can come in any logical order.
   /fdas #1 #2 #3 [Item1] [Item2] [Item3]    -   An example of the flexibility of this command
   /fdas [Item1] #1 [Item2] #2               -   Another example

• The addon doesn't calculate free inventory slots properly if you have a special bag (e.g. Inscription Bag) and are trying to buy an item that can fit in that bag. In most cases this won't be noticeable, but sometimes it may be.
• After a patch, or if you recently cleared your cache, FactionDiscount AutoStock may not be able to generate item links. As soon as you see the item, however, it can.
• If you visit a vendor that has items that aren't in your cache, FactionDiscount AutoStock has to scan the merchant's items before it can decide if it has items which it has been told to buy. This process typically takes 1-5 sec.
• Latency can cause the purchase not to be processed if the player does not wait at the merchant long enough. (Unfixable, sorry!)
• Friendly discount threshold is not a selectable configuration.
  (I chose to forego this because the API does not support it conveniently; instead I'd have to use Tooltip Scanning - a higher memory footprint and a workaround that sometimes fails. I figured most people interested in this mod would want an Honored or above discount anyways.)
• Some messages indicate you received a Honored/Exalted discount instead of an Honored/Exalted discount. This is just a linguistic defect that I consider low-priority.

• Extend the class defaults feature to function for all levels
• Extend the preferences slash command so that ItemLinks aren't necessary if you enter an item name and have the item with you. (possibly set off by brackets)
• Implement checking special BagTypes when calculating free inventory slots
• Improve the overbuyer protection feature to be more configurable and check for inventory updates instead of a 5-second window.
• Automatically load items into your cache if they're on your preference list but not on your cache (to fix the issue mentioned above). (I'm not even sure if this is possible automatically - we'll see)
• Slash command to set the threshold to the highest reputation level you have on that character
• Lower the memory footprint when this and FactionDiscount AutoRepair are used together.