################################################################################################
# Copyright 2023 GlobalFoundries PDK Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
################################################################################################

#================================================
#------------- LAYERS DERIVATIONS ---------------
#================================================

polygons_count = 0
logger.info('Read in polygons from layers.')

def get_polygons(layer, data_type)
  ps = polygons(layer, data_type)
  $run_mode == 'deep' ? ps : ps.merged
end

comp = get_polygons(22, 0)
count = comp.count
logger.info("comp has #{count} polygons")
polygons_count += count

dnwell = get_polygons(12, 0)
count = dnwell.count
logger.info("dnwell has #{count} polygons")
polygons_count += count

nwell = get_polygons(21, 0)
count = nwell.count
logger.info("nwell has #{count} polygons")
polygons_count += count

dualgate = get_polygons(55, 0)
count = dualgate.count
logger.info("dualgate has #{count} polygons")
polygons_count += count

poly2 = get_polygons(30, 0)
count = poly2.count
logger.info("poly2 has #{count} polygons")
polygons_count += count

nplus = get_polygons(32, 0)
count = nplus.count
logger.info("nplus has #{count} polygons")
polygons_count += count

pplus = get_polygons(31, 0)
count = pplus.count
logger.info("pplus has #{count} polygons")
polygons_count += count

otpgate = get_polygons(225, 0)
count = otpgate.count
logger.info("otpgate has #{count} polygons")
polygons_count += count

sab = get_polygons(49, 0)
count = sab.count
logger.info("sab has #{count} polygons")
polygons_count += count

esd = get_polygons(24, 0)
count = esd.count
logger.info("esd has #{count} polygons")
polygons_count += count

resistor = get_polygons(62, 0)
count = resistor.count
logger.info("resistor has #{count} polygons")
polygons_count += count

fusetop = get_polygons(75, 0)
count = fusetop.count
logger.info("fusetop has #{count} polygons")
polygons_count += count

fusetop2 = get_polygons(215, 0)
count = fusetop2.count
logger.info("fusetop2 has #{count} polygons")
polygons_count += count

nat = get_polygons(5, 0)
count = nat.count
logger.info("nat has #{count} polygons")
polygons_count += count

lvt = get_polygons(87, 0)
count = lvt.count
logger.info("lvt has #{count} polygons")
polygons_count += count

comp_dummy = get_polygons(22, 4)
count = comp_dummy.count
logger.info("comp_dummy has #{count} polygons")
polygons_count += count

poly2_dummy = get_polygons(30, 4)
count = poly2_dummy.count
logger.info("poly2_dummy has #{count} polygons")
polygons_count += count

res_mk = get_polygons(110, 5)
count = res_mk.count
logger.info("res_mk has #{count} polygons")
polygons_count += count

res_mk_type1 = get_polygons(26, 17)
count = res_mk_type1.count
logger.info("res_mk_type1 has #{count} polygons")
polygons_count += count

ndmy = get_polygons(111, 5)
count = ndmy.count
logger.info("ndmy has #{count} polygons")
polygons_count += count

ind_mk = get_polygons(151, 5)
count = ind_mk.count
logger.info("ind_mk has #{count} polygons")
polygons_count += count

diode_mk = get_polygons(115, 5)
count = diode_mk.count
logger.info("diode_mk has #{count} polygons")
polygons_count += count

lvs_bjt = get_polygons(118, 5)
count = lvs_bjt.count
logger.info("lvs_bjt has #{count} polygons")
polygons_count += count

guard_ring_mk = get_polygons(167, 5)
count = guard_ring_mk.count
logger.info("guard_ring_mk has #{count} polygons")
polygons_count += count

sramcore_1 = get_polygons(101, 5)
sramcore_2 = get_polygons(102, 5)
sramcore_3 = get_polygons(103, 5)
sramcore_4 = get_polygons(105, 5)
sramcore_5 = get_polygons(108, 5)
sramcore   = sramcore_1.join(sramcore_2).join(sramcore_3)
                       .join(sramcore_4).join(sramcore_5)
count = sramcore.count
logger.info("sramcore has #{count} polygons")
polygons_count += count

lvs_rf = get_polygons(100, 5)
count = lvs_rf.count
logger.info("lvs_rf has #{count} polygons")
polygons_count += count

lvs_drain = get_polygons(100, 7)
count = lvs_drain.count
logger.info("lvs_drain has #{count} polygons")
polygons_count += count

lvs_io = get_polygons(119, 5)
count = lvs_io.count
logger.info("lvs_io has #{count} polygons")
polygons_count += count

probe_mk = get_polygons(13, 17)
count = probe_mk.count
logger.info("probe_mk has #{count} polygons")
polygons_count += count

lvs_source = get_polygons(100, 8)
count = lvs_source.count
logger.info("lvs_source has #{count} polygons")
polygons_count += count

well_diode_mk = get_polygons(153, 51)
count = well_diode_mk.count
logger.info("well_diode_mk has #{count} polygons")
polygons_count += count

plfuse = get_polygons(125, 5)
count = plfuse.count
logger.info("plfuse has #{count} polygons")
polygons_count += count

efuse_mk = get_polygons(80, 5)
count = efuse_mk.count
logger.info("efuse_mk has #{count} polygons")
polygons_count += count

mcell_feol_mk = get_polygons(11, 17)
count = mcell_feol_mk.count
logger.info("mcell_feol_mk has #{count} polygons")
polygons_count += count

comp_label = labels(22, 10)
count = comp_label.count
logger.info("comp_label has #{count} polygons")
polygons_count += count

poly2_label = labels(30, 10)
count = poly2_label.count
logger.info("poly2_label has #{count} polygons")
polygons_count += count

mdiode = get_polygons(116, 5)
count = mdiode.count
logger.info("mdiode has #{count} polygons")
polygons_count += count

contact = get_polygons(33, 0)
count = contact.count
logger.info("contact has #{count} polygons")
polygons_count += count

metal1_drawn = get_polygons(34, 0)
count = metal1_drawn.count
logger.info("metal1_drawn has #{count} polygons")
polygons_count += count

metal1_dummy = get_polygons(34, 4)
count = metal1_dummy.count
logger.info("metal1_dummy has #{count} polygons")
polygons_count += count

metal1         = metal1_drawn + metal1_dummy

metal1_label = labels(34, 10)
count = metal1_label.count
logger.info("metal1_label has #{count} polygons")
polygons_count += count

metal1_slot = get_polygons(34, 3)
count = metal1_slot.count
logger.info("metal1_slot has #{count} polygons")
polygons_count += count

metal1_blk = get_polygons(34, 5)
count = metal1_blk.count
logger.info("metal1_blk has #{count} polygons")
polygons_count += count

via1 = get_polygons(35, 0)
count = via1.count
logger.info("via1 has #{count} polygons")
polygons_count += count

metal2_drawn = get_polygons(36, 0)
count = metal2_drawn.count
logger.info("metal2_drawn has #{count} polygons")
polygons_count += count

metal2_dummy = get_polygons(36, 4)
count = metal2_dummy.count
logger.info("metal2_dummy has #{count} polygons")
polygons_count += count

metal2 = metal2_drawn + metal2_dummy

metal2_label = labels(36, 10)
count = metal2_label.count
logger.info("metal2_label has #{count} polygons")
polygons_count += count

metal2_slot = get_polygons(36, 3)
count = metal2_slot.count
logger.info("metal2_slot has #{count} polygons")
polygons_count += count

metal2_blk = get_polygons(36, 5)
count = metal2_blk.count
logger.info("metal2_blk has #{count} polygons")
polygons_count += count

case METAL_LEVEL
when '3LM', '4LM', '5LM', '6LM'
  via2 = get_polygons(38, 0)
  count = via2.count
  logger.info("via2 has #{count} polygons")
  polygons_count += count

  metal3_drawn = get_polygons(42, 0)
  count = metal3_drawn.count
  logger.info("metal3_drawn has #{count} polygons")
  polygons_count += count

  metal3_dummy = get_polygons(42, 4)
  count = metal3_dummy.count
  logger.info("metal3_dummy has #{count} polygons")
  polygons_count += count

  metal3 = metal3_drawn + metal3_dummy

  metal3_label = get_polygons(42, 10)
  count = metal3_label.count
  logger.info("metal3_label has #{count} polygons")
  polygons_count += count

  metal3_slot = get_polygons(42, 3)
  count = metal3_slot.count
  logger.info("metal3_slot has #{count} polygons")
  polygons_count += count

  metal3_blk = get_polygons(42, 5)
  count = metal3_blk.count
  logger.info("metal3_blk has #{count} polygons")
  polygons_count += count
end

case METAL_LEVEL
when '4LM', '5LM', '6LM'
  via3 = get_polygons(40, 0)
  count = via3.count
  logger.info("via3 has #{count} polygons")
  polygons_count += count

  metal4_drawn = get_polygons(46, 0)
  count = metal4_drawn.count
  logger.info("metal4_drawn has #{count} polygons")
  polygons_count += count

  metal4_dummy = get_polygons(46, 4)
  count = metal4_dummy.count
  logger.info("metal4_dummy has #{count} polygons")
  polygons_count += count

  metal4 = metal4_drawn + metal4_dummy

  metal4_label = get_polygons(46, 10)
  count = metal4_label.count
  logger.info("metal4_label has #{count} polygons")
  polygons_count += count

  metal4_slot = get_polygons(46, 3)
  count = metal4_slot.count
  logger.info("metal4_slot has #{count} polygons")
  polygons_count += count

  metal4_blk = get_polygons(46, 5)
  count = metal4_blk.count
  logger.info("metal4_blk has #{count} polygons")
  polygons_count += count
end

case METAL_LEVEL
when '5LM', '6LM'
  via4 = get_polygons(41, 0)
  count = via4.count
  logger.info("via4 has #{count} polygons")
  polygons_count += count

  metal5_drawn = get_polygons(81, 0)
  count = metal5_drawn.count
  logger.info("metal5_drawn has #{count} polygons")
  polygons_count += count

  metal5_dummy = get_polygons(81, 4)
  count = metal5_dummy.count
  logger.info("metal5_dummy has #{count} polygons")
  polygons_count += count

  metal5 = metal5_drawn + metal5_dummy

  metal5_label = get_polygons(81, 10)
  count = metal5_label.count
  logger.info("metal5_label has #{count} polygons")
  polygons_count += count

  metal5_slot = get_polygons(81, 3)
  count = metal5_slot.count
  logger.info("metal5_slot has #{count} polygons")
  polygons_count += count

  metal5_blk = get_polygons(81, 5)
  count = metal5_blk.count
  logger.info("metal5_blk has #{count} polygons")
  polygons_count += count
end

case METAL_LEVEL
when '6LM'
  via5 = get_polygons(82, 0)
  count = via5.count
  logger.info("via5 has #{count} polygons")
  polygons_count += count

  metaltop_drawn = get_polygons(53, 0)
  count = metaltop_drawn.count
  logger.info("metaltop_drawn has #{count} polygons")
  polygons_count += count

  metaltop_dummy = get_polygons(53, 4)
  count = metaltop_dummy.count
  logger.info("metaltop_dummy has #{count} polygons")
  polygons_count += count

  metaltop       = metaltop_drawn + metaltop_dummy

  metaltop_label = get_polygons(53, 10)
  count = metaltop_label.count
  logger.info("metaltop_label has #{count} polygons")
  polygons_count += count

  metaltop_slot = get_polygons(53, 3)
  count = metaltop_slot.count
  logger.info("metaltop_slot has #{count} polygons")
  polygons_count += count

  metaltop_blk = get_polygons(53, 5)
  count = metaltop_blk.count
  logger.info("metaltop_blk has #{count} polygons")
  polygons_count += count
end

case METAL_LEVEL
when '2LM'
  top_via       = via1
  topmin1_via   = contact
  top_metal     = metal2
  topmin1_metal = metal1
  top_metal_label = metal2_label
when '3LM'
  top_via       = via2
  topmin1_via   = via1
  top_metal     = metal3
  topmin1_metal = metal2
  top_metal_label = metal3_label
when '4LM'
  top_via       = via3
  topmin1_via   = via2
  top_metal     = metal4
  topmin1_metal = metal3
  top_metal_label = metal4_label
when '5LM'
  top_via       = via4
  topmin1_via   = via3
  top_metal     = metal5
  topmin1_metal = metal4
  top_metal_label = metal5_label
when '6LM'
  top_via       = via5
  topmin1_via   = via4
  top_metal     = metaltop
  topmin1_metal = metal5
  top_metal_label = metaltop_label
else
  logger.error("Unknown metal stack #{METAL_LEVEL}")
  raise
end

metalrdl = get_polygons(171, 0)
count = metalrdl.count
logger.info("metalrdl has #{count} polygons")
polygons_count += count

metalrdl_label = labels(171, 10)
count = metalrdl_label.count
logger.info("metalrdl_label has #{count} polygons")
polygons_count += count

viardl = get_polygons(170, 0)
count = viardl.count
logger.info("viardl has #{count} polygons")
polygons_count += count

piscap = get_polygons(120, 0)
count = piscap.count
logger.info("piscap has #{count} polygons")
polygons_count += count

lvs_cap = get_polygons(117, 5)
count = lvs_cap.count
logger.info("lvs_cap has #{count} polygons")
polygons_count += count

pad = get_polygons(37, 0)
count = pad.count
logger.info("pad has #{count} polygons")
polygons_count += count

pad_label = labels(37, 10)
count = pad_label.count
logger.info("pad_label has #{count} polygons")
polygons_count += count

ubmpperi = get_polygons(183, 0)
count = ubmpperi.count
logger.info("ubmpperi has #{count} polygons")
polygons_count += count

ubmparray = get_polygons(184, 0)
count = ubmparray.count
logger.info("ubmparray has #{count} polygons")
polygons_count += count

ubmeplate = get_polygons(185, 0)
count = ubmeplate.count
logger.info("ubmeplate has #{count} polygons")
polygons_count += count

pr_bndry = get_polygons(0, 0)
count = pr_bndry.count
logger.info("pr_bndry has #{count} polygons")
polygons_count += count

logger.info("Total no. of polygons in the design is #{polygons_count}")

logger.info("Starting deriving base layers.")

#=== BULK LAYER ===
sub = polygon_layer