Messy commit, adding a lot of changes for demonstration

new file:   api-output.scm
		Module to ask security market APIs for information
	new file:   database.scm
		Module for working with the database schema
	new file:   db.md
		Current db file
	new file:   db.md_original
		Backup db file
	new file:   holding.scm
		Module for functions that deal with holding type
	new file:   patch_2020-11-15.txt
	new file:   portfolio.scm
	new file:   sqlite_testing.scm
		Working with Sqlite
	modified:   stockminder.scm
		Main Scheme thread
	new file:   test.db
	new file:   test.json
		Playing with different data storage methods
	new file:   test.sqlite
		Using sqlite db

api-output.scm

@@ -0,0 +1,10 @@
+(import :std/net/request)
+(define api-output
+   (lambda (stock-symbol)
+      (let-values
+         (((api-url api-function api-key)
+            (values
+              "https://www.alphavantage.co/query?function=~a&symbol=~a&apikey=~a"
+              "TIME_SERIES_DAILY"
+              "EC4C0NRKZAK1Q2UG" ) ))
+         (request-text (http-get (format api-url api-function stock-symbol api-key))) ) ) )

database.scm

@@ -0,0 +1,21 @@
+(import :std/db/dbi
+	:std/db/sqlite )
+
+(define local-db
+   (sql-connect sqlite-open "test.sqlite") )
+(define query-db (lambda (query connection)
+   (cond ((not (connection? connection))
+         (error "(ARGUMENT 2) CONNECTION expected") )
+      ((not (string? query))
+         (error "(ARGUMENT 1) STRING expected"))
+      ((and (connection? connection) (string? query))
+         (sql-query (sql-prepare connection query)))
+      (else error "Unkown Error. Please report a bug :)") ) ))
+(define exec-db (lambda (exec connection)
+   (cond ((not (connection? connection))
+         (error "(ARGUMENT 2) CONNECTION expected") )
+      ((not (string? exec))
+         (error "(ARGUMENT 1) STRING expected"))
+      ((and (connection? connection) (string? exec))
+         (sql-exec (sql-prepare connection exec)))
+      (else error "Unkown Error. Please report a bug :)") ) ))

db.md

@@ -0,0 +1,341 @@
+# SQL Databases
+
+## Overview
+
+## Generic Database Interface
+
+::: tip usage
+(import :std/db/dbi)
+:::
+
+### connection?
+::: tip usage
+```
+(connection? obj) -> boolean
+```
+:::
+
+Returns #t if the arguemnt is an sql connection object.
+
+### statement?
+::: tip usage
+```
+(statement? obj) -> boolean
+```
+:::
+
+Returns #t if the argument is an sql statement object.
+
+### sql-error?
+::: tip usage
+```
+(sql-error? ...)
+```
+:::
+
+Please document me!
+
+### sql-connect
+::: tip usage
+```
+(sql-connect ...)
+```
+:::
+
+Please document me!
+
+### sql-close
+::: tip usage
+```
+(sql-close ...)
+```
+:::
+
+Please document me!
+
+### sql-prepare
+::: tip usage
+```
+(sql-prepare str) -> statement
+   str := string that is a valid sql statement
+```
+:::
+
+Converts an sql statement in string form to a statement object to be used with
+connections established via `sql-connect`.
+
+### sql-bind
+::: tip usage
+```
+(sql-bind ...)
+```
+:::
+
+Please document me!
+
+### sql-clear
+::: tip usage
+```
+(sql-clear ...)
+```
+:::
+
+Please document me!
+
+### sql-reset
+::: tip usage
+```
+(sql-reset ...)
+```
+:::
+
+Please document me!
+
+### sql-reset/clear
+::: tip usage
+```
+(sql-reset/clear ...)
+```
+:::
+
+Please document me!
+
+### sql-finalize
+::: tip usage
+```
+(sql-finalize ...)
+```
+:::
+
+Please document me!
+
+### sql-eval
+::: tip usage
+```
+(sql-eval ...)
+```
+:::
+
+Please document me!
+
+### sql-eval-query
+::: tip usage
+```
+(sql-eval-query ...)
+```
+:::
+
+Please document me!
+
+### sql-exec
+::: tip usage
+```
+(sql-exec obj)
+   obj := sql statement object
+```
+:::
+
+Accepts an sql statement object as an argument. Defaults to currently open
+connection made via `(sql-connect sqlite-open ...)`.
+
+### sql-query
+::: tip usage
+```
+(sql-query ...)
+```
+:::
+
+Please document me!
+
+### in-sql-query
+::: tip usage
+```
+(in-sql-query ...)
+```
+:::
+
+Please document me!
+
+### sql-columns
+::: tip usage
+```
+(sql-columns ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-begin
+::: tip usage
+```
+(sql-txn-begin ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-commit
+::: tip usage
+```
+(sql-txn-commit ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-abort
+::: tip usage
+```
+(sql-txn-abort ...)
+```
+:::
+
+Please document me!
+
+
+
+## SQLite driver
+
+::: tip usage
+(import :std/db/sqlite)
+:::
+
+### sqlite-open
+::: tip usage
+```
+(sql-connect sqlite-open str)
+   str	:= a relative filepath or sqlite connection string
+```
+:::
+
+Opens an sql connection to the database located at the provided path/address.
+
+
+## PostgreSQL driver
+
+::: tip usage
+(import :std/db/postgresql)
+:::
+
+### postgresql-connect
+::: tip usage
+```
+(sql-connect postgresql-connect ...)
+```
+:::
+
+Please document me!
+
+### defcatalog
+::: tip usage
+```
+(defcatalog ...)
+```
+:::
+
+Please document me!
+
+### defcatalog-default
+::: tip usage
+```
+(defcatalog-default ...)
+```
+:::
+
+Please document me!
+
+### default-catalog
+::: tip usage
+```
+(def default-catalog)
+```
+:::
+
+Please document me!
+
+### current-catalog
+::: tip usage
+```
+(current-catalog ...)
+```
+:::
+
+Please document me!
+
+
+## MySQL driver
+
+::: tip usage
+(import :std/db/mysql)
+:::
+
+### mysql-connect
+::: tip usage
+```
+(sql-connect mysql-connect ...)
+```
+:::
+
+Please document me!
+
+## Connection Pools
+
+::: tip usage
+(import :std/db/conpool)
+:::
+
+### make-conpool
+::: tip usage
+```
+(make-conpool ...)
+```
+:::
+
+Please document me!
+
+### conpool?
+::: tip usage
+```
+(conpool? ...)
+```
+:::
+
+Please document me!
+
+### conpool-get
+::: tip usage
+```
+(conpool-get ...)
+```
+:::
+
+Please document me!
+
+### conpool-put
+::: tip usage
+```
+(conpool-put ...)
+```
+:::
+
+Please document me!
+
+### conpool-release
+::: tip usage
+```
+(conpool-release ...)
+```
+:::
+
+Please document me!
+
+### conpool-close
+::: tip usage
+```
+(conpool-close ...)
+```
+:::
+
+Please document me!
+
+## Example

db.md_original

@@ -0,0 +1,336 @@
+# SQL Databases
+
+## Overview
+
+## Generic Database Interface
+
+::: tip usage
+(import :std/db/dbi)
+:::
+
+### connection?
+::: tip usage
+```
+(connection? ...)
+```
+:::
+
+Please document me!
+
+### statement?
+::: tip usage
+```
+(statement? ...)
+```
+:::
+
+Please document me!
+
+### sql-error?
+::: tip usage
+```
+(sql-error? ...)
+```
+:::
+
+Please document me!
+
+### sql-connect
+::: tip usage
+```
+(sql-connect ...)
+```
+:::
+
+Please document me!
+
+### sql-close
+::: tip usage
+```
+(sql-close ...)
+```
+:::
+
+Please document me!
+
+### sql-prepare
+::: tip usage
+```
+(sql-prepare ...)
+```
+:::
+
+Please document me!
+
+### sql-bind
+::: tip usage
+```
+(sql-bind ...)
+```
+:::
+
+Please document me!
+
+### sql-clear
+::: tip usage
+```
+(sql-clear ...)
+```
+:::
+
+Please document me!
+
+### sql-reset
+::: tip usage
+```
+(sql-reset ...)
+```
+:::
+
+Please document me!
+
+### sql-reset/clear
+::: tip usage
+```
+(sql-reset/clear ...)
+```
+:::
+
+Please document me!
+
+### sql-finalize
+::: tip usage
+```
+(sql-finalize ...)
+```
+:::
+
+Please document me!
+
+### sql-eval
+::: tip usage
+```
+(sql-eval ...)
+```
+:::
+
+Please document me!
+
+### sql-eval-query
+::: tip usage
+```
+(sql-eval-query ...)
+```
+:::
+
+Please document me!
+
+### sql-exec
+::: tip usage
+```
+(sql-exec ...)
+```
+:::
+
+Please document me!
+
+### sql-query
+::: tip usage
+```
+(sql-query ...)
+```
+:::
+
+Please document me!
+
+### in-sql-query
+::: tip usage
+```
+(in-sql-query ...)
+```
+:::
+
+Please document me!
+
+### sql-columns
+::: tip usage
+```
+(sql-columns ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-begin
+::: tip usage
+```
+(sql-txn-begin ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-commit
+::: tip usage
+```
+(sql-txn-commit ...)
+```
+:::
+
+Please document me!
+
+### sql-txn-abort
+::: tip usage
+```
+(sql-txn-abort ...)
+```
+:::
+
+Please document me!
+
+
+
+## SQLite driver
+
+::: tip usage
+(import :std/db/sqlite)
+:::
+
+### sqlite-open
+::: tip usage
+```
+(sql-connect sqlite-open ...)
+```
+:::
+
+Please document me!
+
+
+## PostgreSQL driver
+
+::: tip usage
+(import :std/db/postgresql)
+:::
+
+### postgresql-connect
+::: tip usage
+```
+(sql-connect postgresql-connect ...)
+```
+:::
+
+Please document me!
+
+### defcatalog
+::: tip usage
+```
+(defcatalog ...)
+```
+:::
+
+Please document me!
+
+### defcatalog-default
+::: tip usage
+```
+(defcatalog-default ...)
+```
+:::
+
+Please document me!
+
+### default-catalog
+::: tip usage
+```
+(def default-catalog)
+```
+:::
+
+Please document me!
+
+### current-catalog
+::: tip usage
+```
+(current-catalog ...)
+```
+:::
+
+Please document me!
+
+
+## MySQL driver
+
+::: tip usage
+(import :std/db/mysql)
+:::
+
+### mysql-connect
+::: tip usage
+```
+(sql-connect mysql-connect ...)
+```
+:::
+
+Please document me!
+
+## Connection Pools
+
+::: tip usage
+(import :std/db/conpool)
+:::
+
+### make-conpool
+::: tip usage
+```
+(make-conpool ...)
+```
+:::
+
+Please document me!
+
+### conpool?
+::: tip usage
+```
+(conpool? ...)
+```
+:::
+
+Please document me!
+
+### conpool-get
+::: tip usage
+```
+(conpool-get ...)
+```
+:::
+
+Please document me!
+
+### conpool-put
+::: tip usage
+```
+(conpool-put ...)
+```
+:::
+
+Please document me!
+
+### conpool-release
+::: tip usage
+```
+(conpool-release ...)
+```
+:::
+
+Please document me!
+
+### conpool-close
+::: tip usage
+```
+(conpool-close ...)
+```
+:::
+
+Please document me!
+
+## Example

holding.scm

@@ -0,0 +1,58 @@
+(import :std/format)
+;; Units
+(define is-units? (lambda (object);;; Inspector
+  (cond ((eq? 'units (car object)) #t)
+      (else #f) ) ))
+
+(define make-units (lambda (units);;; Constructor
+   (cond ((not (zero? units)) (cons 'units units))
+     (else (error "(Argument 1) Unsigned 8 bit exact non-zero INTEGER expected")) ) ))
+
+;; Asset
+(define is-asset? (lambda (object);;; Inspector
+  (cond ((eq? 'asset (car object)) #t)
+      (else #f) ) ))
+
+;; New make-asset
+(define asset-types (vector "ETF" "Stock" "Mutual Fund"))
+(define make-asset (lambda (asset asset-type)
+   (let loop
+      ((vector-index (- (vector-length asset-types) 1)))
+      ;(display (format "Evaluates ~a = ~a .\n" (vector-ref asset-types vector-index) asset-type))
+      ;(display (equal? (vector-ref asset-types vector-index) asset-type))
+      (cond ((> 0 vector-index)
+         (error `"(Argument 2) defined ASSET-TYPE expected. Is ,asset-type defined?"))
+         ((equal? (vector-ref asset-types vector-index) asset-type)
+         (list 'asset asset asset-type) )
+         (else (loop (- vector-index 1))) ) ) ))
+;(define make-asset (lambda (asset);;; Constructor
+;   (cond ((string? asset) (cons 'asset asset))
+;      (else (error "(Argument 1) STRING expected")) ) ))
+
+;;Holding
+(define is-holding? (lambda (object);;; Inspector
+  (cond ((eq? 'holding (car object)) #t)
+  (else #f) ) ))
+
+(define make-holding (lambda (asset units);;; Constructor
+  (cond ((and (is-asset? asset) (is-units? units)) (list 'holding asset units))
+     (else (error "Type Error")) ) ))
+
+(define get-units (lambda (holding);;; Selector->Units
+   (cond ((is-holding? holding)  (caddr holding))
+      (else (error "(Argument 1) HOLDING expected")) ) ))
+
+(define get-asset (lambda (holding);;; Selector->Asset
+  (cond ((is-holding? holding) (cadr holding))
+     (else (error "(Argument 1) HOLDING expected")) ) ))
+
+(define get-asset-type (lambda (holding);;; Selector->Asset
+  (cond ((is-holding? holding) (list-ref (cadr holding) 2))
+     (else (error "(Argument 1) HOLDING expected")) ) ))
+
+(define print-holding (lambda (holding);;; Print
+  (cond ((is-holding? holding)
+     (printf (format "(~a)[~d]\n"
+        (cadr (get-asset holding)) (cdr (get-units holding)) )) )
+     (else (error "(Argument 1) HOLDING expected")) ) ))
+;; Database functions

patch_2020-11-15.txt

@@ -0,0 +1,74 @@
+--- db.md_original	2020-11-15 22:37:01.041227106 -0500
++++ db.md	2020-11-15 22:49:31.107770676 -0500
+@@ -11,20 +11,20 @@
+ ### connection?
+ ::: tip usage
+ ```
+-(connection? ...)
++(connection? obj) -> boolean
+ ```
+ :::
+ 
+-Please document me!
++Returns #t if the arguemnt is an sql connection object.
+ 
+ ### statement?
+ ::: tip usage
+ ```
+-(statement? ...)
++(statement? obj) -> boolean
+ ```
+ :::
+ 
+-Please document me!
++Returns #t if the argument is an sql statement object.
+ 
+ ### sql-error?
+ ::: tip usage
+@@ -56,11 +56,13 @@
+ ### sql-prepare
+ ::: tip usage
+ ```
+-(sql-prepare ...)
++(sql-prepare str) -> statement
++   str := string that is a valid sql statement
+ ```
+ :::
+ 
+-Please document me!
++Converts an sql statement in string form to a statement object to be used with
++connections established via `sql-connect`.
+ 
+ ### sql-bind
+ ::: tip usage
+@@ -128,11 +130,13 @@
+ ### sql-exec
+ ::: tip usage
+ ```
+-(sql-exec ...)
++(sql-exec obj)
++   obj := sql statement object
+ ```
+ :::
+ 
+-Please document me!
++Accepts an sql statement object as an argument. Defaults to currently open
++connection made via `(sql-connect sqlite-open ...)`.
+ 
+ ### sql-query
+ ::: tip usage
+@@ -199,11 +203,12 @@
+ ### sqlite-open
+ ::: tip usage
+ ```
+-(sql-connect sqlite-open ...)
++(sql-connect sqlite-open str)
++   str	:= a relative filepath or sqlite connection string
+ ```
+ :::
+ 
+-Please document me!
++Opens an sql connection to the database located at the provided path/address.
+ 
+ 
+ ## PostgreSQL driver

portfolio.scm

@@ -0,0 +1,14 @@
+;(import :std/db/dbi
+;	:std/db/sqlite )
+
+(load "database.scm")
+(load "holding.scm")
+
+(define portfolio
+   (lambda (db-connection arguments)
+      (exit)
+          ) )
+            ;(vector->list (tscar (sql-query (sql-prepare db-connection
+               ;(cdr (assoc portfolio-action action-query)))))) ) ) ) )
+;`((get-assets . "SELECT * FROM stocksymbols;")
+;(add-asset . "INSERT INTO stocksymbols (symbol, shares) VALUES ('~a', ~d);"))

sqlite_testing.scm

@@ -0,0 +1,2 @@
+(import :std/db/dbi :std/db/sqlite)
+(define dbconnection (sql-connect sqlite-open "test.sqlite"))

stockminder.scm

@@ -1,44 +1,25 @@
 #!/bin/env gxi
 
 
-(import :std/net/request
+(import :std/format
-	:std/format
-	:std/xml
 	:std/text/json)
 
+(map (lambda (x) (load x)) `("api-output.scm" "portfolio.scm"))
 #| Yahoo Finance Headers
 headers: '( ("x-rapidapi-host" . "apidojo-yahoo-finance-v1.p.rapidapi.com")
             ("x-rapidapi-key" . "98c32048f8mshe6f4d8a686ddce9p18cc5ajsn8b8888e7e256") )
 |#
-; Declare the file from which we'll load our stockminder configuration
+
+; Initialize the db connections we'll need to store stockminder's config
 ; Things like stock symbols, favourite functions, timing preferences, etc.
-(define-values
+;(define local-db
-   (stockminder-config stocklist output-file)
+;      (sql-connect sqlite-open "test.sqlite") )
-   (values
+; The procedure we'll use to iterate through portfolio values and add symbols
-      (open-input-file "stocklist.conf")
-; Initialize our stocklist so we can throw stuff in there after we parse
-; the config file.
-      `()
-      (open-output-file "test.out") ) )
-; The procedure we'll use to iterate through config values and add symbols
 ; to our stocklist
-(define read-config (lambda (config-file)
+;(define actions
-   (let read-loop ((config-chomp (read config-file)))
+;   `((get-assets . "SELECT * FROM stocksymbols;")
-      (if (eof-object? config-chomp)
+;      ;(add-asset . ,(format "INSERT INTO stocksymbols (symbol, shares) VALUES ('~a', ~d);" stock-symbol number-of-shares)))
-         (close-input-port config-file)
+;    ) )
-         (and (set! stocklist (append stocklist `(,config-chomp)))
-            (read-loop (read config-file)) ) ) ) ))
-; Now the business end; parse the config file
-(read-config stockminder-config)
 
-(define-values
+;(display (portfolio local-db `get-assets))
-   (api-function api-url api-key)
+;(display (portfolio local-db `add-asset (list "VIU" 10)))
-   (values
-      "TIME_SERIES_DAILY"
-      "https://www.alphavantage.co/"
-      "EC4C0NRKZAK1Q2UG" ) )
-(let
-   ((stock-symbols stocklist))
-   (map (lambda (x) (display (string-append
-         api-url "query?function=" api-function "&symbol=" (symbol->string x) "&apikey=" api-key "\n")))
-      stock-symbols ) )

test.json

@@ -0,0 +1,711 @@
+{
+    "Meta Data": {
+        "1. Information": "Daily Prices (open, high, low, close) and Volumes",
+        "2. Symbol": "VUN.TO",
+        "3. Last Refreshed": "2020-11-13",
+        "4. Output Size": "Compact",
+        "5. Time Zone": "US/Eastern"
+    },
+    "Time Series (Daily)": {
+        "2020-11-13": {
+            "1. open": "64.9900",
+            "2. high": "65.6000",
+            "3. low": "64.9800",
+            "4. close": "65.4700",
+            "5. volume": "23542"
+        },
+        "2020-11-12": {
+            "1. open": "65.0000",
+            "2. high": "65.0400",
+            "3. low": "64.2700",
+            "4. close": "64.5200",
+            "5. volume": "32900"
+        },
+        "2020-11-11": {
+            "1. open": "65.0000",
+            "2. high": "65.0000",
+            "3. low": "64.4800",
+            "4. close": "64.8200",
+            "5. volume": "21400"
+        },
+        "2020-11-10": {
+            "1. open": "64.3500",
+            "2. high": "64.3500",
+            "3. low": "63.4700",
+            "4. close": "64.1400",
+            "5. volume": "45300"
+        },
+        "2020-11-09": {
+            "1. open": "65.9700",
+            "2. high": "66.0000",
+            "3. low": "64.0900",
+            "4. close": "64.0900",
+            "5. volume": "73200"
+        },
+        "2020-11-06": {
+            "1. open": "64.0000",
+            "2. high": "64.0000",
+            "3. low": "63.2600",
+            "4. close": "63.5300",
+            "5. volume": "37900"
+        },
+        "2020-11-05": {
+            "1. open": "63.6000",
+            "2. high": "63.8000",
+            "3. low": "63.3900",
+            "4. close": "63.6700",
+            "5. volume": "44100"
+        },
+        "2020-11-04": {
+            "1. open": "62.0400",
+            "2. high": "63.3800",
+            "3. low": "62.0400",
+            "4. close": "62.7400",
+            "5. volume": "25500"
+        },
+        "2020-11-03": {
+            "1. open": "61.5300",
+            "2. high": "61.7600",
+            "3. low": "60.8500",
+            "4. close": "61.5300",
+            "5. volume": "33700"
+        },
+        "2020-11-02": {
+            "1. open": "60.6500",
+            "2. high": "61.1000",
+            "3. low": "60.2600",
+            "4. close": "60.6500",
+            "5. volume": "45100"
+        },
+        "2020-10-30": {
+            "1. open": "60.4600",
+            "2. high": "60.9400",
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