@ -82,8 +82,13 @@ task :bom => boms
CLEAN . include ( boms )
desc " get cost estimation for BOMs "
costs = targets . collect { | target | " #{ target [ :name ] } _cost.csv " }
task :cost = > costs
cost = targets . collect { | target | " #{ target [ :name ] } _cost.csv " }
task :cost = > cost
CLEAN . include ( cost )
desc " get cost comparison for BOMs "
costs = targets . collect { | target | " #{ target [ :name ] } _costs.csv " }
task :costs = > costs
CLEAN . include ( costs )
desc " convert schematic to pcb layout "
@ -149,7 +154,7 @@ def bom2(schematic, attributes)
[ attributes . to_s ]
end
# generate bom2
list = ` gnetlist -g bom2 -Oattribs= #{ attributes * ',' } -q -o - #{ schematic } `
list = ` gnetlist -g bom2 -O attribs= #{ attributes * ',' } -q -o - #{ schematic } `
list . encode! ( " UTF-8 " , " ISO-8859-1 " )
list . gsub! ( / ( \ d[Mkmµ]?) \ ? / , '\1Ω' ) # UTF-8 characters like Ω are replaced with ? by gnetlist
list . gsub! ( / (https?: \/ \/ [^:]*): / , '"\1":' ) # ':' (like in links) are not protected
@ -168,135 +173,105 @@ end
# return actual USD $ to EUR € rate
def usd2eur_rate
unless $u2e then
rate_http = Net :: HTTP . get_response ( URI . parse ( " https://rate-exchange.appspot.com/currency?from=USD&to=EUR " ) )
rate_http = Net :: HTTP . get_response ( URI . parse ( " https://api.fixer.io/latest?base=USD " ) )
rate_json = JSON . parse ( rate_http . body )
$u2e = rate_json [ " rate " ] . to_f
$u2e = rate_json [ " rates " ] [ " EUR " ] . to_f
end
return $u2e
end
# return part price
def octopart ( seller , sku )
seller = { 'digikey-id' = > " Digi-Key " , 'farnell-id' = > " Farnell " , 'mouser-id' = > " Mouser " } [ seller ]
return nil unless seller
to_return = { stock : nil , currency : nil , prices : [ ] }
# octopart API key to get cost estimations
unless $octopart_api_key then
raise " provide octopart API key in 'octopart' file to get cost estimations " unless File . exist? " octopart "
key = IO . read ( " octopart " ) . lines [ 0 ]
raise " provide octopart API key in 'octopart' file to get cost estimations " if key . empty?
$octopart_api_key = key
end
# query octopart
query = [ { :seller = > seller , :sku = > sku } ]
url = 'http://octopart.com/api/v3/parts/match?'
url += 'queries=' + URI . encode ( JSON . generate ( query ) )
url += '&apikey=' + $octopart_api_key
resp = Net :: HTTP . get_response ( URI . parse ( url ) )
octo_info = JSON . parse ( resp . body )
# get the right response
octo_info [ 'results' ] . each do | result |
result [ 'items' ] . each do | item |
item [ 'offers' ] . each do | offer |
next unless offer [ 'seller' ] [ 'name' ] == seller
next unless offer [ 'sku' ] == sku
to_return [ :stock ] = offer [ 'in_stock_quantity' ]
offer [ 'prices' ] . each do | currency , prices |
next unless currency == " USD " or currency == " EUR "
next if to_return [ :currency ] == " EUR "
to_return [ :currency ] = currency
prices . each do | price |
price [ 1 ] = price [ 1 ] . to_f
end
to_return [ :prices ] = prices
end
end
# get part prices (and stock) from octopart
# octopart provides a nice API (requiring a key) and prices for numerous distributors, but the result aren't always accurate
# provide either the ocotopart_id, or manufacturer_name and manufacturer_part, or distributor_name and distributor_sku
APIKEY_FILE = " octopart.apikey "
def octopart_prices ( octopart_id , manufacturer_name , manufacturer_part , distributor_name , distributor_sku )
to_return = nil
# get API key
raise " octopart API key required in #{ APIKEY_FILE } " unless File . file? APIKEY_FILE
apikey = IO . read ( APIKEY_FILE ) . lines [ 0 ]
raise " octopart API key required in #{ APIKEY_FILE } " if apikey . empty?
# get part information
url = " https://octopart.com/api/v3/parts/match?&apikey= #{ apikey } &queries= "
to_return = if octopart_id then
url = " https://octopart.com/api/v3/parts/ #{ octopart_id } ?apikey= #{ apikey } "
resp = Net :: HTTP . get_response ( URI . parse ( url ) )
JSON . parse ( resp . body )
elsif manufacturer_name and manufacturer_part then
url = " https://octopart.com/api/v3/parts/match?&apikey= #{ apikey } &queries= " + URI . encode ( JSON . generate ( [ { :brand = > manufacturer_name , :mpn = > manufacturer_part } ] ) )
resp = Net :: HTTP . get_response ( URI . parse ( url ) )
json = JSON . parse ( resp . body )
if json [ " results " ] . empty? or json [ " results " ] [ 0 ] [ " items " ] . empty? then
nil
else
json [ " results " ] [ 0 ] [ " items " ] [ 0 ]
end
elsif distributor_name and distributor_sku then
url = " https://octopart.com/api/v3/parts/match?&apikey= #{ apikey } &queries= " + URI . encode ( JSON . generate ( [ { :seller = > distributor_name , :sku = > distributor_sku } ] ) )
resp = Net :: HTTP . get_response ( URI . parse ( url ) )
json = JSON . parse ( resp . body )
if json [ " results " ] . empty? or json [ " results " ] [ 0 ] [ " items " ] . empty? then
nil
else
json [ " results " ] [ 0 ] [ " items " ] [ 0 ]
end
else
nil
end
sleep 0 . 33 if to_return # 3 queries/second rate limiting
return to_return
end
DIGIKEY_URL = " http://www.digikey.de/product-detail/en/all/ "
# get prices and stock for part from Digi-Key using the Digi-Key part number
def scrape_digikey ( sku )
to_return = { stock : nil , currency : " EUR " , prices : [ ] }
# get page
url = DIGIKEY_URL + sku
url = " https://www.digikey.de/product-detail/en/all/ " + sku
doc = Nokogiri :: HTML ( open ( URI . escape ( url ) ) )
return nil if doc . xpath ( '//td[@id="quantityAvailable"]' ) . empty? or doc . xpath ( '//table[@id="product-dollars"]' ) . empty?
# get stock
stock_doc = doc . xpath ( '//td[@id="quantityavailable"]' ) [ 0 ]
to_return [ :stock ] = stock_doc . text . gsub ( / [ ,]+ / , " " ) . scan ( / \ d+ / ) [ 0 ] . to_i
stock_doc = doc . xpath ( '//td[@id="quantityAvailable"]/span[@id="dkQty"]' )
to_return [ :stock ] = ( stock_doc . empty? ? 0 : stock_doc . text . gsub ( '.' , '' ) . to_i )
# get prices
doc . xpath ( '//table[@id="pricing "]/tr' ) . each do | row |
doc . xpath ( '//table[@id="product-dollars "]/tr' ) . each do | row |
next unless ( col = row . xpath ( 'td' ) ) . size == 3
qty = col [ 0 ] . text . gsub ( / [^ \ d]+ / , " " )
qty = ( qty =~ / ^ \ d+$ / ? qty . to_i : nil )
price = col [ 1 ] . text . gsub ( / [^ \ d \ .]+ / , " " )
price = col [ 1 ] . text . gsub ( / [^ \ d \ ., ]+ / , " " ) . gsub ( " . " , " " ) . gsub ( " , " , " . " )
price = ( price =~ / ^ \ d+( \ . \ d+)?$ / ? price . to_f : nil )
to_return [ :prices ] << [ qty , price ] if qty and price
end
return to_return
end
FARNELL_URL = " http://de.farnell.com/ "
def scrape_farnell ( sku )
to_return = { stock : nil , currency : " EUR " , prices : [ ] }
# get page
url = FARNELL_URL + sku
doc = Nokogiri :: HTML ( open ( URI . escape ( url ) ) )
# get stock
stock_doc = doc . xpath ( '//td[@class="prodDetailAvailability"]' ) [ 0 ]
if stock_doc then
to_return [ :stock ] = stock_doc . text . lines . to_a [ - 1 ] . to_i
else # when several stocks are available
stock_doc = doc . xpath ( '//div[@class="stockDetail"]' ) [ 0 ]
to_return [ :stock ] = stock_doc . text . gsub ( " . " , " " ) . scan ( / \ d+ / ) [ - 1 ] . to_i # the last match should be for EU
end
# get prices
doc . xpath ( '//div[@class="price"]/*/tr' ) . each do | row |
next unless row . xpath ( 'td' ) . size == 2
qty = row . xpath ( 'td' ) [ 0 ] . text . split ( " - " ) [ 0 ] . gsub ( / [^ \ d]+ / , " " )
qty = ( qty =~ / ^ \ d+$ / ? qty . to_i : nil )
price = row . xpath ( 'td' ) [ 1 ] . text . gsub ( " , " , " . " ) . gsub ( / [^ \ d \ .]+ / , " " )
price = ( price =~ / ^ \ d+( \ . \ d+)?$ / ? price . to_f : nil )
to_return [ :prices ] << [ qty , price ] if qty and price
end
return to_return
end
MOUSER_URL = " http://www.mouser.com/Search/ProductDetail.aspx?R=0virtualkey0virtualkey "
def scrape_mouser ( sku )
to_return = { stock : nil , currency : " EUR " , prices : [ ] }
# get prices from AliExpress using SKU
def scrape_aliexpress ( sku )
to_return = { stock : nil , currency : nil , quantity : nil , price : nil } # information to return (lot price, unit quantity, unit stock)
# get page
url = MOUSER_URL + sku
url = " https://www.aliexpress.com/item// #{ sku } .html "
doc = Nokogiri :: HTML ( open ( URI . escape ( url ) , :allow_redirections = > :all ) )
# get stock
stock_doc = doc . xpath ( '//table[contains(@id,"availability")]/tr/td' ) [ 0 ]
to_return [ :stock ] = stock_doc . text . gsub ( " . " , " " ) . to_i
# get prices
doc . xpath ( '//table[@class="PriceBreaks"]/tr' ) . each do | row |
qty_doc = row . xpath ( 'td[@class="PriceBreakQuantity"]' )
qty = qty_doc [ 0 ] . text . gsub ( / [ \ s: \ .]+ / , " " ) . to_i unless qty_doc . empty?
price_doc = row . xpath ( 'td[@class="PriceBreakPrice"]' )
price = price_doc [ 0 ] . text . gsub ( / \ s+ / , " " ) . gsub ( " € " , " " ) . gsub ( " , " , " . " ) . to_f unless price_doc . empty?
price = nil if price == 0
to_return [ :prices ] << [ qty , price ] if qty and price
# all the values can be found in javascript variables (stock in even only there)
js_doc = doc . xpath ( '//div[@id="j-product-detail-bd"]//script[@type="text/javascript"]' )
return nil if js_doc . empty?
js_text = js_doc [ 0 ] . text
# get currency
return nil unless js_text . include? ( 'window.runParams.currencyCode="' )
to_return [ :currency ] = js_text . split ( 'window.runParams.currencyCode="' ) [ 1 ] . split ( '";' ) [ 0 ]
# get other values
return nil unless js_text . include? ( " var skuProducts= " )
js_json = JSON . parse ( js_text . split ( " var skuProducts= " ) [ 1 ] . split ( " ; " ) [ 0 ] ) [ 0 ]
to_return [ :price ] = js_json [ " skuVal " ] [ " skuMultiCurrencyCalPrice " ] . to_f
if ( js_json [ " skuVal " ] [ " skuMultiCurrencyPerPiecePrice " ] ) then
to_return [ :quantity ] = ( to_return [ :price ] / js_json [ " skuVal " ] [ " skuMultiCurrencyPerPiecePrice " ] . to_f ) . round
else
to_return [ :quantity ] = 1
end
to_return [ :stock ] = ( js_json [ " skuVal " ] [ " availQuantity " ] * to_return [ :quantity ] ) . to_i
to_return [ :prices ] = [ [ to_return [ :quantity ] , to_return [ :price ] ] ]
return to_return
end
def scrape_prices ( seller , sku )
return case seller
when 'digikey-id'
scrape_digikey ( sku )
when 'farnell-id'
scrape_farnell ( sku )
when 'mouser-id'
scrape_mouser ( sku )
else
nil
end
end
# ===============
# file generation
# ===============
@ -307,7 +282,7 @@ targets.each do |target|
# embed symbols
sh " cp #{ t . prerequisites . join ( ' ' ) } #{ t . name } "
sh " gschlas -e #{ t . name } "
# on \ is to prevent ruby interpreting it, th other is for sed
# on \ is to prevent ruby interpreting it, the other is for sed
# the version
sh " sed --in-place 's/ \\ (version= \\ ) \\ $Version \\ $/ \\ 1 #{ version } /' #{ t . name } "
# the date
@ -321,7 +296,7 @@ desc "copy layout to include complete version (version, date, and run teardrops
targets . each do | target |
file target [ :vpcb ] = > target [ :pcb ] do | t |
sh " cp #{ t . prerequisites . join ( ' ' ) } #{ t . name } "
# on \ is to prevent ruby interpreting it, th other is for sed
# one \ is to prevent ruby interpreting it, the other is for sed
# the version and revision
version_revision = " v #{ version } . #{ target [ :pcb_rev ] . to_s . rjust ( 3 , '0' ) } "
sh " sed -i 's/ \\ $version \\ $/ #{ version_revision } /' #{ t . name } "
@ -367,7 +342,7 @@ end
desc " generate BOM file from schematic "
targets . each do | target |
file " #{ target [ :name ] } _bom.csv " = > target [ :sch ] do | t |
attributes = [ " category " , " device " , " value " , " description " , " manufacturer " , " manufacturer-id " , " datasheet " , " digikey-id " , " farnell-id " , " mouser-id " ]
attributes = [ " category " , " device " , " value " , " description " , " manufacturer " , " manufacturer-id " , " datasheet " , " digikey-id " , " farnell-id " , " mouser-id " , " aliexpress-id " , " alternatives " ]
bom_data = bom2 ( t . prerequisites [ 0 ] , attributes )
CSV . open ( t . name , " wb " ) do | csv |
all_attributes = [ " refdes " , " qty " ] + attributes
@ -381,76 +356,228 @@ end
desc " generate cost estimation from schematic "
targets . each do | target |
# this version uses Digi-Key and AliExpress
# Digi-Key is easily scrapable, while Mouser isn't
# Digi-Key is only one distributor, but the end prices across distributor is often similar
file " #{ target [ :name ] } _cost.csv " = > target [ :sch ] do | t |
sellers = [ 'digikey-id' , 'farnell-id' , 'mouser-id' ] # provide the (supported) seller SKU as value to this attribute name in the symbols/schematic
boards = [ 1 , 10 ] # calculate the price for as many boards
sum = Array . new ( sellers . size ) { Array . new ( boards . size , 0 . 0 ) } # total cost
stocks = Array . new ( sellers . size ) { Array . new ( boards . size ) { [ ] } } # is there enough stock
sellers = [ 'digikey-id' , 'aliexpress-id' ] # get seller SKU
boards = [ 1 , 10 , 100 ] # calculate the price for as many boards
total_price = Array . new ( sellers . size ) { Array . new ( boards . size , 0 . 0 ) } # total pri ce f or x board s
unit_price = Array . new ( sellers . size ) { Array . new ( boards . size , 0 . 0 ) } # unit price for 1 board
# get component information
attributes = [ " manufacturer " , " manufacturer-id " ] + sellers
parts = bom2 ( t . prerequisites [ 0 ] , attributes )
parts . collect! { | part | part [ 'manufacturer' ] and part [ 'manufacturer-id' ] ? part : nil }
parts . compact!
attributes = [ " value " , " manufacturer " , " manufacturer-id " ] + sellers # BOM fields to get
parts = bom2 ( t . prerequisites [ 0 ] , attributes ) # get field values
# put result in CVS
CSV . open ( t . name , " wb " ) do | csv |
csv << [ " refdes " , " quantity " , " manufacturer " , " part number " ] + ( sellers . collect { | seller | [ seller , " stock " , " currency " ] + boards . collect { | qty | [ " unit price for #{ qty } board(s) " , " total price for #{ qty } board(s) " ] } } ) . flatten
csv << [ " refdes " , " quantity " , " manufacturer " , " part number " ] + ( sellers . collect { | seller | [ seller , " stock " ] + boards . collect { | qty | [ " unit price for #{ qty } board(s) " , " total price for #{ qty } board(s) " ] } } ) . flatten
parts . each do | part |
part [ 'qty' ] = part [ 'qty' ] . to_i
line = [ part [ 'refdes' ] , part [ 'qty' ] , part [ 'manufacturer' ] , part [ 'manufacturer-id' ] ]
sellers . each_index do | i |
seller = sellers [ i ]
if part [ seller ] then
begin
prices = scrape_prices ( seller , part [ seller ] )
rescue
$stderr . puts " #{ part [ 'manufacturer' ] } #{ part [ 'manufacturer-id' ] } not available using #{ seller } #{ part [ seller ] } "
line += [ part [ seller ] ] + [ nil ] * ( 2 + boards . size * 2 )
next
end
part [ 'qty' ] = part [ 'qty' ] . to_i # converted quantity from BOM string to integer for later calculation
line = [ part [ 'refdes' ] , part [ 'qty' ] , part [ 'manufacturer' ] , part [ 'manufacturer-id' ] ] # start CSV line
sellers . each_index do | seller_i | # go through all seller
seller = sellers [ seller_i ] # current seller
if part [ seller ] and ! part [ seller ] . empty? then
line << part [ seller ]
line << prices [ :stock ]
line << prices [ :currency ]
unit = [ ] # the unit price
boards . each_index do | j |
if prices [ :prices ] . empty? then
line += [ nil ] * 2
else
prices [ :prices ] . each do | price |
unit [ j ] = price [ 1 ] if ( ! unit [ j ] or price [ 1 ] < unit [ j ] ) and price [ 0 ] < = part [ 'qty' ] * boards [ j ]
price = case seller
when 'aliexpress-id'
scrape_aliexpress ( part [ seller ] )
when 'digikey-id'
scrape_digikey ( part [ seller ] )
else
nil
end
if price then
line << price [ :stock ]
boards . each_index do | boards_i |
quantity = boards [ boards_i ]
# find lowest price (considering the quantity and quantity prices)
unit = nil
total = nil
price [ :prices ] . each do | p |
if ! unit or ! total then
unit = p [ 1 ] . to_f
total = [ quantity , p [ 0 ] . to_i ] . max * unit
end
if [ quantity , p [ 0 ] . to_i ] . max * p [ 1 ] . to_f < total then
unit = p [ 1 ] . to_f
total = [ quantity , p [ 0 ] . to_i ] . max * unit
end
end
if unit [ j ] then
line << unit [ j ]
line << unit [ j ] * part [ 'qty' ] * boards [ j ]
stocks [ i ] [ j ] << true if part [ 'qty' ] * boards [ j ] < = prices [ :stock ]
sum [ i ] [ j ] += unit [ j ] * part [ 'qty' ] * boards [ j ]
else # use the minimum quantity
line << prices [ :prices ] [ 0 ] [ 1 ]
line << prices [ :prices ] [ 0 ] [ 1 ] * prices [ :prices ] [ 0 ] [ 0 ]
stocks [ i ] [ j ] << true
sum [ i ] [ j ] += prices [ :prices ] [ 0 ] [ 1 ] * prices [ :prices ] [ 0 ] [ 0 ]
if " USD " == price [ :currency ] then
unit *= usd2eur_rate ( )
total *= usd2eur_rate ( )
end
line << unit
unit_price [ seller_i ] [ boards_i ] += line [ - 1 ]
line << total
total_price [ seller_i ] [ boards_i ] += line [ - 1 ]
end
else
line += [ nil ] * ( 1 + boards . size * 2 )
end
else
line += [ nil ] * ( 3 + boards . size * 2 )
end
end
line += [ nil ] * ( 2 + boards . size * 2 )
end # seller
end # sellers
csv << line
end # parts
# summary
line = [ nil ] * 4
sellers . each_index do | seller_i |
line += [ nil , nil ]
boards . each_index do | boards_i |
line << unit_price [ seller_i ] [ boards_i ]
line << total_price [ seller_i ] [ boards_i ]
end
end
csv << line
# details
csv << [ ]
csv << [ " all prices and stocks have been retrieved from Digi-Key and AliExpress on #{ Time . now . to_s } " ]
csv << [ " all prices are in EUR. prices originally in USD have been converted at a rate of #{ usd2eur_rate } " ]
end # CSV file
end # end cost file
end # end target file
desc " generate cost comparison from schematic "
targets . each do | target |
# this version uses octopart and AliExpress
# octopart has the advantage to have and API and provides prices for numerous distributors
# the disadvantage is that the octopart information are not always accurate
file " #{ target [ :name ] } _costs.csv " = > target [ :sch ] do | t |
sellers = [ 'digikey-id' , 'farnell-id' , 'mouser-id' , 'aliexpress-id' ] # get seller SKU
SELLER_ID = { 'digikey-id' = > 459 , 'farnell-id' = > 819 , 'mouser-id' = > 2401 } # octopart seller IDs
boards = [ 1 , 10 , 100 ] # calculate the price for as many boards
sum = Array . new ( sellers . size ) { Array . new ( boards . size , 0 . 0 ) } # total cost
stocks = Array . new ( sellers . size ) { Array . new ( boards . size , true ) } # is there enough stock
# get component information
attributes = [ " value " , " manufacturer " , " manufacturer-id " , " octopart-id " ] + sellers # BOM fields to get
parts = bom2 ( t . prerequisites [ 0 ] , attributes ) # get field values
# put result in CVS
CSV . open ( t . name , " wb " ) do | csv |
csv << [ " refdes " , " quantity " , " manufacturer " , " part number " ] + ( sellers . collect { | seller | [ seller , " stock " ] + boards . collect { | qty | [ " unit price for #{ qty } board(s) " , " total price for #{ qty } board(s) " ] } } ) . flatten
parts . each do | part |
part [ 'qty' ] = part [ 'qty' ] . to_i # converted quantity from BOM string to integer for later calculation
line = [ part [ 'refdes' ] , part [ 'qty' ] , part [ 'manufacturer' ] , part [ 'manufacturer-id' ] ] # start CSV line
# get prices
prices = nil
if part [ 'octopart-id' ] and ! part [ 'octopart-id' ] . empty? then
prices = octopart_prices ( part [ 'octopart-id' ] , nil , nil , nil , nil )
elsif part [ 'manufacturer' ] and ! part [ 'manufacturer' ] . empty? and part [ 'manufacturer-id' ] and ! part [ 'manufacturer-id' ] . empty?
prices = octopart_prices ( nil , part [ 'manufacturer' ] , part [ 'manufacturer-id' ] , nil , nil )
end
# get prices per seller
sellers . each_index do | seller_i |
seller = sellers [ seller_i ] # current seller
if 'aliexpress-id' == seller then # AliExpress is an exception since it's not in octopart
if part [ seller ] and ! part [ seller ] . empty? then # AliExpress link provided
price = scrape_aliexpress ( part [ seller ] )
if price then
line << part [ seller ]
line << price [ :stock ]
boards . each_index do | boards_i |
quantity = boards [ boards_i ]
line << price [ :price ]
if quantity < price [ :quantity ] then
line << price [ :price ] * usd2eur_rate ( )
else
line << price [ :price ] * usd2eur_rate ( ) * ( quantity / price [ :quantity ] ) . ceil
end
sum [ seller_i ] [ boards_i ] += line [ - 1 ]
stocks [ seller_i ] [ boards_i ] & = ( quantity < = price [ :stock ] )
end
else # no prices available
if part [ 'manufacturer' ] and part [ 'manufacturer-id' ] then
$stderr . print " #{ part [ 'manufacturer' ] } #{ part [ 'manufacturer-id' ] } "
else
$stderr . print " part "
end
$stderr . puts " not available using #{ seller } #{ part [ seller ] } "
line += [ nil ] * ( 2 + boards . size * 2 )
end
else # no aliexpress-id provided
line += [ nil ] * ( 2 + boards . size * 2 )
end
else # not AliExpress
price = nil # prices from this seller
if prices and prices [ " offers " ] and ! prices [ " offers " ] . empty? then # verify if we already have this seller in our price list
prices [ " offers " ] . each do | offer |
price = offer if ! price and offer [ " seller " ] [ " id " ] . to_i == SELLER_ID [ seller ] and ( ! offer [ " moq " ] or offer [ " moq " ] . to_i == 1 )
end
price = nil if price and part [ seller ] and ! part [ seller ] . empty? and price [ " sku " ] != part [ seller ] # check if distributor part number matches
end
if ! price and part [ seller ] and ! part [ seller ] . empty? then # get prices using distributor part number if not already found
distributor_prices = octopart_prices ( nil , nil , nil , seller . split ( " - " ) [ 0 ] , part [ seller ] )
if distributor_prices and distributor_prices [ " offers " ] and ! distributor_prices [ " offers " ] . empty? then
distributor_prices [ " offers " ] . each do | offer |
price = offer if ! price and offer [ " seller " ] [ " id " ] . to_i == SELLER_ID [ seller ] and ( ! offer [ " moq " ] or offer [ " moq " ] . to_i == 1 )
end
end
end
if price then # display price
line << part [ seller ]
line << price [ " in_stock_quantity " ]
boards . each_index do | boards_i |
quantity = boards [ boards_i ]
# find lowest price (considering the quantity and quantity prices)
unit_price = nil
total_price = nil
( price [ " prices " ] [ " EUR " ] || [ ] ) . each do | p |
if ! unit_price or ! total_price then
unit_price = p [ 1 ] . to_f
total_price = [ quantity , p [ 0 ] . to_i ] . max * unit_price
end
if [ quantity , p [ 0 ] . to_i ] . max * p [ 1 ] . to_f < total_price then
unit_price = p [ 1 ] . to_f
total_price = [ quantity , p [ 0 ] . to_i ] . max * unit_price
end
end
( price [ " prices " ] [ " USD " ] || [ ] ) . each do | p |
if ! unit_price or ! total_price then
unit_price = p [ 1 ] . to_f * usd2eur_rate ( )
total_price = [ quantity , p [ 0 ] . to_i ] . max * unit_price
end
if [ quantity , p [ 0 ] . to_i ] . max * p [ 1 ] . to_f < total_price then
unit_price = p [ 1 ] . to_f * usd2eur_rate ( )
total_price = [ quantity , p [ 0 ] . to_i ] . max * unit_price
end
end
line << unit_price
line << total_price
sum [ seller_i ] [ boards_i ] += line [ - 1 ]
stocks [ seller_i ] [ boards_i ] & = ( quantity < = price [ " in_stock_quantity " ] )
end
else # no price available
if part [ seller ] and ! part [ seller ] . empty? then
if part [ 'manufacturer' ] and part [ 'manufacturer-id' ] then
$stderr . print " #{ part [ 'manufacturer' ] } #{ part [ 'manufacturer-id' ] } "
else
$stderr . print " part "
end
$stderr . puts " not available using #{ seller } #{ part [ seller ] } "
end
line += [ nil ] * ( 2 + boards . size * 2 )
end
end # seller
end # sellers
csv << line
end # parts
# summary
line = [ nil ] * 4
sellers . each_index do | i |
line += [ nil , nil , nil ]
boards . each_index do | j |
line << ( stocks [ i ] [ j ] . size == parts . size ? " " : " not " ) + " enough stock "
line << sum [ i ] [ j ]
sellers . each_index do | seller_ i|
line += [ nil , nil ]
boards . each_index do | boards_i |
line << ( stocks [ seller_i ] [ boards_i ] ? " " : " not " ) + " enough stock "
line << sum [ seller_ i] [ boards_i ]
end
end
csv << line
end
end
end
# details
csv << [ ]
csv << [ " all prices and stocks have been retrieved from octopart and AliExpress on #{ Time . now . to_s } " ]
csv << [ " all prices are in EUR. prices originally in USD have been converted at a rate of #{ usd2eur_rate } " ]
end # CSV file
end # end cost file
end # end target file
desc " generate photo realistic picture from layout (front side) "
targets . each do | target |
