2 files changed, 95 insertions, 0 deletions
diff --git a/src/ee/bom/__init__.py b/src/ee/bom/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/ee/bom/__init__.py
diff --git a/src/ee/bom/doit.py b/src/ee/bom/doit.py
new file mode 100644
index 0000000..d7407d8
--- /dev/null
+++ b/src/ee/bom/doit.py
@@ -0,0 +1,95 @@
+from typing import Mapping
+
+from configclass import Config
+
+from ee.ds import DataSetManager
+
+_dsm = None  # type: DataSetManager
+
+_data_sets = {}
+
+_config_template = Config({
+})
+
+_config = None  # type: Mapping[str, str]
+
+
+def init(data_set_manager: DataSetManager, **kwargs):
+    global _config
+    _config = _config_template.make(kwargs)
+
+    global _dsm
+    _dsm = data_set_manager
+
+
+class BomComponent(object):
+    def __init__(self, ref, mpn):
+        self.ref = ref
+        self.mpn = mpn
+
+    def to_object(self, ds):
+        return ds.create_object("bom-component", self.ref).\
+            set("ref", self.ref).\
+            set("mpn", self.mpn)
+
+
+class MpnBomComponent(object):
+    def __init__(self, ref, mpn):
+        self.ref = ref
+        self.mpn = mpn
+        self.count = 1
+
+    def to_object(self, ds):
+        return ds.create_object("mpn-bom-component", self.ref).\
+            set("ref", self.ref).\
+            set("mpn", self.mpn)
+
+
+def task_bom():
+    out_data_set = "bom"
+    in_data_sets = _data_sets[task_bom]
+
+    def action(count=1):
+        with _dsm.create_ro(in_data_sets) as in_ds:
+            with _dsm.create_rw(out_data_set, clean=True) as output:
+                components = [o for o in in_ds.items() if o.object_type.name == "component"]
+
+                bom_components = {}
+                mpn_bom_components = {}
+
+                for c in components:
+                    ref = c.get("ref")
+                    mpn = c.get("mpn")
+
+                    if not ref:
+                        raise Exception("Missing ref")
+
+                    if not mpn:
+                        output.create_object("message", "bom-{}".format(ref)). \
+                            set("level", "error"). \
+                            set("message", "Missing required field 'mpn'")
+                        continue
+
+                    if ref in bom_components:
+                        raise Exception("Duplicate ref '{}'".format("ref"))
+
+                    bom_components[ref] = BomComponent(ref, mpn)
+
+                    mpn_bom_component = mpn_bom_components[ref]
+                    if not mpn_bom_component:
+                        mpn_bom_component = MpnBomComponent(ref, mpn)
+                        mpn_bom_components[ref] = mpn_bom_component
+
+                    mpn_bom_component.count += 1
+
+                [c.to_object(output) for c in bom_components.values()]
+                [c.to_object(output) for c in mpn_bom_components.values()]
+
+    return {
+        "file_dep": [_dsm.cookie_for_ds(ds) for ds in in_data_sets],
+        "actions": [action],
+        "targets": [_dsm.cookie_for_ds(out_data_set)],
+    }
+
+
+_data_sets[task_bom] = ["components"]