From 122850d7a90428b6d7b92fe6100a1f2a6df2a1eb Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sat, 30 Sep 2017 23:05:00 +0200
Subject: o Switching from YAML to INI files for downloaded facts. o Improved
 fact downloader.

---
 src/ee/digikey/__init__.py | 80 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 63 insertions(+), 17 deletions(-)

(limited to 'src/ee/digikey')

diff --git a/src/ee/digikey/__init__.py b/src/ee/digikey/__init__.py
index af5977b..1315f96 100644
--- a/src/ee/digikey/__init__.py
+++ b/src/ee/digikey/__init__.py
@@ -6,7 +6,8 @@ import re
 import requests
 import os
 import os.path
-import yaml
+import configparser
+import glob
 from cachecontrol import CacheControl
 from cachecontrol.caches.file_cache import FileCache
 from cachecontrol.heuristics import ExpiresAfter
@@ -90,13 +91,32 @@ class DigikeyProduct(object):
     def __hash__(self):
         return self.part_number.__hash__()
 
-    def to_yaml(self):
-        yaml = {"part_number": self.part_number}
+    def to_ini(self):
+        c = configparser.ConfigParser()
+        c["overview"] = {}; overview = c["overview"]
+        overview["part_number"] = self.part_number
         if self.mpn:
-            yaml["mpn"] = self.mpn
-        yaml["attributes"] = [{"type": {"id": a.attribute_type.id, "label": a.attribute_type.label}, "value": a.value}
-                              for a in self.attributes]
-        return yaml
+            overview["mpn"] = self.mpn
+        c["attributes"] = {}; attributes = c["attributes"]
+        for a in self.attributes:
+            key = "{}/{}".format(a.attribute_type.id, a.attribute_type.label)
+            key = key.replace("%", "_")
+            value = a.value.replace("%", "%%")
+            attributes[key] = value
+        return c
+
+    from_ini_r = re.compile("([^/]*)/(.*)")
+
+    @staticmethod
+    def from_ini(digikey, c):
+        overview = c["overview"]
+        attributes = []
+        for k, value in c.items("attributes"):
+#            print("k={}".format(k))
+            (type_id, label) = DigikeyProduct.from_ini_r.match(k).groups()
+            a_type = digikey.get_attribute_type(type_id, label)
+            attributes.append(DigikeyAttributeValue(value, a_type))
+        return DigikeyProduct(overview["part_number"], overview["mpn"], attributes)
 
 
 class DigikeyAttributeType(object):
@@ -228,8 +248,8 @@ class DigikeyClient(object):
         products = tree.xpath("//*[@itemtype='http://schema.org/Product']")
 
         for product in products:
-            part_number = _first(product.xpath("//*[@itemprop='productid' and @content]"))
-            mpn = _first(product.xpath("//*[@itemprop='name']"))
+            part_number = _first(product.xpath(".//*[@itemprop='productid' and @content]"))
+            mpn = _first(product.xpath(".//*[@itemprop='name']"))
 
             if part_number is not None and mpn is not None:
                 res.append(DigikeyProduct(
@@ -272,19 +292,45 @@ class DigikeyClient(object):
                 return DigikeySearchResponse(1, SearchResponseTypes.NO_MATCHES)
 
 class DigikeyRepository(object):
-    def __init__(self, path):
+    def __init__(self, digikey, path):
+        self._digikey = digikey
         self._path = path
+        self._products = {}
 
     def mpn_to_path(self, mpn):
-        return "{}/{}.yaml".format(self._path, mpn)
-
-    def has_product(self, mpn):
-        filename = self.mpn_to_path(mpn)
-        return os.path.isfile(filename)
+        mpn = mpn.replace("/", "_").replace(" ", "_")
+        return "{}/{}.ini".format(self._path, mpn)
+
+    def has_product(self, mpn=None, dpn=None):
+        if mpn is not None:
+            filename = self.mpn_to_path(mpn)
+            return os.path.isfile(filename)
+        if dpn is not None:
+            for p in self.products:
+                if p.part_number == dpn:
+                    return p
 
     def save(self, product: DigikeyProduct):
-        y = product.to_yaml()
+        y = product.to_ini()
         filename = self.mpn_to_path(product.mpn)
         mk_parents(filename)
         with open(filename, "w") as f:
-            yaml.dump(y, f, encoding="utf-8", allow_unicode=True)
+            y.write(f)
+
+    def load_all(self):
+        [self._load(path) for path in glob.glob(self._path + "/*.ini")]
+
+    def _load(self, path):
+        c = configparser.ConfigParser()
+        c.read(path)
+        p = DigikeyProduct.from_ini(self._digikey, c)
+        self._products[p.mpn] = p
+        return p
+
+    @property
+    def products(self):
+        self.load_all()
+        return self._products.values()
+
+    def find_by_mpn(self, mpn):
+        return [p for p in self.products if p.mpn == mpn]
-- 
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