# -*-python-*-
#################### 
import sys, os

g_url = ""
def GetMyPLCURL(): return g_url
def SetMyPLCURL(url):
    global g_url
    g_url = url

# Get all currently registered roles
g_role_names = [ role['name'] for role in GetRoles()]
g_role_names.sort()

def SetRole(level, role):
    global g_role_names
    if role not in g_role_names:
        AddRole(level, role)
        g_role_names.append(role)
        g_role_names.sort()

# Get list of existing tag types
g_known_tag_types = [tag_type['tagname'] for tag_type in GetTagTypes()]
g_known_tag_types.sort()

def AllPersonRoles (): return [ 'pi','user','tech' ]

def SetTagType(tag_type):
    try:
        tagname=tag_type['tagname']
        global g_known_tag_types
        # handle 'roles' field differently
        if 'roles' in tag_type:
            roles=tag_type['roles']
            del tag_type['roles']
        else:
            roles=['admin']
        # just in case
        if 'min_role_id' in tag_type:
            print "WARNING: ignoring deprecated field min_role_id for tagtype %s"%tagname
            del tag_type['min_role_id']
        # Create/update default slice tag types
        if tagname not in g_known_tag_types:
            AddTagType(tag_type)
            g_known_tag_types.append(tagname)
            g_known_tag_types.sort()
        else:
            UpdateTagType(tagname, tag_type)
        # enforce provided roles if present
        old_roles=GetTagTypes(tagname)[0]['roles']
        for minus_role in set(old_roles).difference(set(roles)):
            DeleteRoleFromTagType(minus_role,tagname)
        for plus_role in set(roles).difference(set(old_roles)):
            AddRoleToTagType(plus_role,tagname)
    except:
        # something went wrong for that tagname, 
        # but don't want to break the whole startup sequence
        print "Could not enforce tagtype %s --- beg"%tagname
        import traceback
        traceback.print_exc()
        print "Could not enforce tagtype %s --- end"%tagname

# Get list of existing (enabled, global) files
g_conf_files = GetConfFiles()
g_conf_files = filter(lambda conf_file: conf_file['enabled'] and \
                    not conf_file['node_ids'] and \
                    not conf_file['nodegroup_ids'],
                    g_conf_files)
g_dests = [conf_file['dest'] for conf_file in g_conf_files]
g_conf_files = dict(zip(g_dests, g_conf_files))

# Get list of existing initscripts
g_oldinitscripts = GetInitScripts()
g_oldinitscript_names = [script['name'] for script in g_oldinitscripts]
g_oldinitscripts = dict(zip(g_oldinitscript_names, g_oldinitscripts))

def SetInitScript(initscript):
    global g_oldinitscripts, g_oldinitscript_names
    if initscript['name'] not in g_oldinitscript_names:
        initscript_id = AddInitScript(initscript)
        g_oldinitscript_names.append(initscript['name'])
        initscript['initscript_id']=initscript_id
        g_oldinitscripts[initscript['name']]=initscript
    else:
        orig_initscript = g_oldinitscripts[initscript['name']]
        initscript_id = orig_initscript['initscript_id']
        UpdateInitScript(initscript_id, initscript)
        
def SetConfFile(conf_file):
    global g_conf_files, g_dests
    if conf_file['dest'] not in g_dests:
        AddConfFile(conf_file)
    else:
        orig_conf_file = g_conf_files[conf_file['dest']]
        conf_file_id = orig_conf_file['conf_file_id']
        UpdateConfFile(conf_file_id, conf_file)

def SetSlice(slice, tags):
    try:
        # Create or Update slice
        slice_name = slice['name']
        slices = GetSlices([slice_name])
        if len(slices)==1:
            slice_id = slices[0]['slice_id']
            if slice.has_key('name'):
                del slice['name']
            UpdateSlice(slice_id, slice)
            slice['name']=slice_name
        else:
            expires = None
            if slice.has_key('expires'):
                expires = slice['expires']
                del slice['expires']
            slice_id = AddSlice(slice)
            if expires <> None:
                UpdateSlice(slice_id, {'expires':expires})
    
        # Get slice structure with all fields
        slice = GetSlices([slice_name])[0]
    
        # Create/delete all tags
        # NOTE: update is not needed, since unspecified tags are deleted, 
        #       and new tags are added
        slice_tags = []
        if slice['slice_tag_ids']:
            # Delete unknown attributes
            for slice_tag in GetSliceTags(slice['slice_tag_ids']):
                # ignore sliver tags, as those are custom/run-time values
                if slice_tag['node_id'] <> None: continue
                if (slice_tag['tagname'], slice_tag['value']) not in tags:
                    DeleteSliceTag(slice_tag['slice_tag_id'])
                else:
                    slice_tags.append((slice_tag['tagname'],slice_tag['value']))
    
        # only add slice tags that are new
        for (name, value) in tags:
            if (name,value) not in slice_tags:
                AddSliceTag(slice_name, name, value)            
            else:
                # NOTE: this confirms that the user-specified tag is 
                #       returned by GetSliceTags
                pass
    except:
        # something went wrong for that tagname, 
        print "Could not create init slice %s --- beg"%slice['name']
        import traceback
        traceback.print_exc()
        print "Could not create init slice %s --- end"%slice['name']

def SetMessage(message):
    messages = GetMessages([message['message_id']])
    if len(messages)==0:
        AddMessage(message)
    ### Thierry 2012-03
    # let people customize their messages if they want to
    #else:
    #    UpdateMessage(message['message_id'],message)

# Get all model names
g_pcu_models = [type['model'] for type in GetPCUTypes()]

def SetPCUType(pcu_type):
    global g_pcu_models
    if 'pcu_protocol_types' in pcu_type:
        protocol_types = pcu_type['pcu_protocol_types']
        # Take this value out of the struct.
        del pcu_type['pcu_protocol_types']
    else:
        protocol_types = []

    if pcu_type['model'] not in g_pcu_models:
        # Add the name/model info into DB
        id = AddPCUType(pcu_type)
        # for each protocol, also add this.
        for ptype in protocol_types:
            AddPCUProtocolType(id, ptype)