From e2f3ccd324578bfbc43d2ddc32d5943d139b9ac5 Mon Sep 17 00:00:00 2001
From: mattmcw <matt@sixteenmillimeter.com>
Date: Thu, 28 Nov 2024 13:54:42 -0500
Subject: [PATCH] BOM script now generates table that links to minimums

---
 README.md      | 35 ++++++++++++++++++-----------------
 scripts/bom.sh | 14 ++++++++++----
 2 files changed, 28 insertions(+), 21 deletions(-)

diff --git a/README.md b/README.md
index 28189d1..5c43b50 100644
--- a/README.md
+++ b/README.md
@@ -39,23 +39,24 @@ Actual price of a full build may be higher.
 
 <!-- bom -->
 
-|                Part                 | Qty | Cost (USD) |
-|-------------------------------------|-----|------------|
-| M4 hex bolt 40mm                    | 4   | $2.40      |
-| M3 sliding t slot nut               | 25  | $1.25      |
-| M3 hex cap bolt 8mm                 | 25  | $2.00      |
-| M3 hex cap bolt 6mm                 | 8   | $0.56      |
-| M3 hex cap bolt 12mm                | 1   | $0.08      |
-| L298N Motor driver module           | 1   | $2.87      |
-| ESP32 GPIO breakout board           | 1   | $5.99      |
-| ESP32 Dev board                     | 1   | $6.66      |
-| 608-RS Ball Bearing                 | 1   | $0.17      |
-| 250RPM DC geared motor              | 2   | $29.98     |
-| 2020 Aluminum extrusion 420mm       | 2   | $5.10      |
-| 2020 Aluminum extrusion 260mm       | 4   | $6.40      |
-| 100RPM DC geared motor with encoder | 1   | $16.19     |
-|---------|---------------|--------------------------------------------------|
-| TOTAL   | 76            | $79.65                                           |
+|                Part                 | Qty | Cost (USD) |                  Minumum                  |
+|-------------------------------------|-----|------------|-------------------------------------------|
+| M4 hex bolt 40mm                    | 4   | $2.40      | [10 for $6.09](https://amzn.to/4ikpYL8)   |
+| M3 sliding t slot nut               | 25  | $1.25      | [105 for $5.99](https://amzn.to/48GRrSU)  |
+| M3 hex cap bolt 8mm                 | 25  | $2.00      | [100 for $8.99](https://amzn.to/3YEvWNB)  |
+| M3 hex cap bolt 6mm                 | 8   | $0.56      | [100 for $7.26](https://amzn.to/3AwiZxo)  |
+| M3 hex cap bolt 12mm                | 1   | $0.08      | [100 for $8.36](https://amzn.to/48CGa5Y)  |
+| L298N Motor driver module           | 1   | $2.87      | [4 for $11.49](https://amzn.to/4ellssy)   |
+| ESP32 GPIO breakout board           | 1   | $5.99      | [2 for $11.99](https://amzn.to/3UFjpbO)   |
+| ESP32 Dev board                     | 1   | $6.66      | [3 for $19.99](https://amzn.to/3NXCvGj)   |
+| 608-RS Ball Bearing                 | 1   | $0.17      | [100 for $17.79](https://amzn.to/4fKxDA7) |
+| 250RPM DC geared motor              | 2   | $29.98     | [1 for $14.99](https://amzn.to/3NWkcRL)   |
+| 2020 Aluminum extrusion 420mm       | 2   | $5.10      | [29 for $73.99](https://amzn.to/418OicC)  |
+| 2020 Aluminum extrusion 260mm       | 4   | $6.40      | [46 for $73.99](https://amzn.to/418OicC)  |
+| 100RPM DC geared motor with encoder | 1   | $16.19     | [1 for $16.19](https://amzn.to/3UF707G)   |
+|---------|-----|--------|---------|
+| TOTAL   | 76  | $79.65 | $277.11 |
+
 
 
 <!-- /bom -->
diff --git a/scripts/bom.sh b/scripts/bom.sh
index d3fa236..51cd605 100644
--- a/scripts/bom.sh
+++ b/scripts/bom.sh
@@ -54,11 +54,17 @@ echo "quantity,part,part_id,price" > "${TOTAL}"
 sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${DESTINATION} bom" -cmd ".import ${PRICES} prices"\
   'SELECT SUM(quantity),part,part_id, SUM(quantity) * (COALESCE((SELECT CEIL(prices.price / prices.quantity) FROM prices WHERE prices.part = bom.part LIMIT 1), 0)) as price FROM bom GROUP BY part ORDER BY part DESC;' >> "${TOTAL}"
 
-sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${TOTAL} bom"  -cmd '.mode markdown' \
-  "SELECT part as Part, quantity as Qty, printf('$%.2f', CAST(price AS FLOAT) / 100) as 'Cost (USD)' FROM bom ORDER BY part DESC;"
+sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${TOTAL} bom" -cmd ".import ${PRICES} prices" -cmd '.mode markdown' \
+  "SELECT part as Part, quantity as Qty, \
+  printf('$%.2f', CAST(price AS FLOAT) / 100) as 'Cost (USD)', \
+  printf( '[%s for $%.2f](%s)', (SELECT prices.quantity FROM prices WHERE prices.part = bom.part), (SELECT CAST(prices.price AS FLOAT) / 100 FROM prices WHERE prices.part = bom.part), (SELECT prices.url FROM prices WHERE prices.part = bom.part)) as 'Minumum' \
+  FROM bom ORDER BY part DESC;"
 
-sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${TOTAL} bom" -cmd '.mode markdown' \
-  "SELECT 'TOTAL', SUM(quantity), printf('$%.2f', CAST(SUM(price) AS FLOAT) / 100) FROM bom;" | grep -v 'SUM('
+sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${TOTAL} bom" -cmd ".import ${PRICES} prices" -cmd '.mode markdown' \
+  "SELECT 'TOTAL', SUM(quantity) AS qty, \
+  printf('$%.2f', CAST(SUM(price) AS FLOAT) / 100) as total, \
+  printf('$%.2f', ( SELECT CAST( SUM(price) AS FLOAT) / 100 FROM prices WHERE prices.part IN ( SELECT bom.part FROM bom ) ) ) as min \
+  FROM bom;" | grep -v 'qty'
 
 sqlite3 :memory: -cmd '.mode csv' -cmd ".import ${TOTAL} bom"\
   "SELECT SUM(quantity), 'TOTAL', 'N/A', SUM(price) FROM bom;" | tr -d '"' >> "${TOTAL}"