|
| 1 | +from parser_utils import make_soup |
| 2 | +from markdownify import markdownify as md |
| 3 | + |
| 4 | +## Language-specific resource name overrides: |
| 5 | +flutter_resource_overrides = { |
| 6 | + "generic_component": "Generic", |
| 7 | + "movement_sensor": "MovementSensor", |
| 8 | + "power_sensor": "PowerSensor", |
| 9 | + "vision": "VisionClient", |
| 10 | + "robot": "RobotClient", |
| 11 | + "data": "DataClient", |
| 12 | + "dataset": "DataClient", |
| 13 | + "data_sync": "DataClient" |
| 14 | +} |
| 15 | + |
| 16 | +## Ignore these specific APIs if they error, are deprecated, etc: |
| 17 | +flutter_ignore_apis = [ |
| 18 | + 'getRoverRentalRobots' # internal use |
| 19 | +] |
| 20 | + |
| 21 | +## Use these URLs for data types that are built-in to the language: |
| 22 | +flutter_datatype_links = {} |
| 23 | + |
| 24 | +class FlutterParser: |
| 25 | + def __init__(self, proto_map_file, flutter_staging_url = None): |
| 26 | + self.proto_map_file = proto_map_file |
| 27 | + self.sdk_url = "https://flutter.viam.dev" |
| 28 | + |
| 29 | + if flutter_staging_url: |
| 30 | + self.scrape_url = flutter_staging_url |
| 31 | + self.staging = True |
| 32 | + else: |
| 33 | + self.scrape_url = "https://flutter.viam.dev" |
| 34 | + self.staging = False |
| 35 | + self.flutter_methods = {} |
| 36 | + |
| 37 | + |
| 38 | + def parse(self, type, viam_resources, args): |
| 39 | + self.flutter_methods[type] = {} |
| 40 | + |
| 41 | + # Skip resources not supported in Flutter |
| 42 | + unsupported_resources = [ |
| 43 | + "base_remote_control", "button", "encoder", "input_controller", |
| 44 | + "data_manager", "generic_service", "mlmodel", "motion", |
| 45 | + "navigation", "slam", "switch", "app", "billing", "mltraining" |
| 46 | + ] |
| 47 | + |
| 48 | + for resource in viam_resources: |
| 49 | + |
| 50 | + ## Determine URL form for Flutter depending on type (like 'component'). |
| 51 | + ## TEMP: Manually exclude Base Remote Control Service (Go only): |
| 52 | + ## TODO: Handle resources with 0 implemented methods for this SDK better. |
| 53 | + |
| 54 | + # Initialize Flutter methods dictionary if it doesn't exist |
| 55 | + self.flutter_methods[type][resource] = {} |
| 56 | + |
| 57 | + if resource in unsupported_resources: |
| 58 | + if args.verbose: |
| 59 | + print(f'DEBUG: Skipping unsupported Flutter resource: {resource}') |
| 60 | + continue |
| 61 | + elif resource in flutter_resource_overrides: |
| 62 | + url = f"{self.scrape_url}/viam_sdk/{flutter_resource_overrides[resource]}-class.html" |
| 63 | + if args.verbose: |
| 64 | + print(f'DEBUG: Parsing Flutter URL: {url}') |
| 65 | + else: |
| 66 | + url = f"{self.scrape_url}/viam_sdk/{resource.capitalize()}-class.html" |
| 67 | + |
| 68 | + ## Scrape each parent method tag and all contained child tags for Flutter by resource. |
| 69 | + ## TEMP: Manually exclude Base Remote Control Service (Go only). |
| 70 | + ## TODO: Handle resources with 0 implemented methods for this SDK better. |
| 71 | + if resource not in unsupported_resources: |
| 72 | + |
| 73 | + soup = make_soup(url) |
| 74 | + |
| 75 | + if resource in flutter_resource_overrides: |
| 76 | + flutter_resource = flutter_resource_overrides[resource] |
| 77 | + else: |
| 78 | + flutter_resource = resource.capitalize() |
| 79 | + ## Limit matched class to either 'callable' or 'callable inherited' and remove the constructor (proto id) itself: |
| 80 | + flutter_methods_raw = soup.find_all( |
| 81 | + lambda tag: tag.name == 'dt' |
| 82 | + and not tag.get('id') == flutter_resource |
| 83 | + and tag.has_attr("class") |
| 84 | + and "callable" in tag.get("class")) |
| 85 | + |
| 86 | + ## Loop through scraped tags and select salient data: |
| 87 | + for tag in flutter_methods_raw: |
| 88 | + |
| 89 | + ## Create new empty dictionary for this specific method, to be appended to ongoing flutter_methods dictionary, |
| 90 | + ## in form: flutter_methods[type][resource][method_name] = this_method_dict |
| 91 | + this_method_dict = {} |
| 92 | + |
| 93 | + method_name = tag.get('id') |
| 94 | + |
| 95 | + if not method_name in flutter_ignore_apis: |
| 96 | + |
| 97 | + ## Look up method_name in proto_map file, and return matching proto: |
| 98 | + with open(self.proto_map_file, 'r') as f: |
| 99 | + for row in f: |
| 100 | + ## Because Flutter is the final entry in the mapping CSV, we must also rstrip() to |
| 101 | + ## strip the trailing newline (\n) off the row itself: |
| 102 | + row = row.rstrip() |
| 103 | + |
| 104 | + if not row.startswith('#') \ |
| 105 | + and row.startswith(resource + ',') \ |
| 106 | + and row.split(',')[5] == method_name: |
| 107 | + this_method_dict["proto"] = row.split(',')[1] |
| 108 | + |
| 109 | + ## Determine method link: |
| 110 | + method_link = tag.find("span", class_="name").a['href'].replace("..", self.sdk_url) |
| 111 | + this_method_dict["method_link"] = method_link |
| 112 | + |
| 113 | + ## While some method info is available to us on this current Flutter SDK page, the code sample is only found on the |
| 114 | + ## method_link page. So we scrape that page for everything: |
| 115 | + method_soup = make_soup(method_link) |
| 116 | + |
| 117 | + ## Method description and code samples are both found within the same section tag: |
| 118 | + desc_or_code_sample = method_soup.find('section', class_ = 'desc markdown') |
| 119 | + |
| 120 | + if desc_or_code_sample: |
| 121 | + if desc_or_code_sample.p: |
| 122 | + this_method_dict["method_description"] = desc_or_code_sample.p.text |
| 123 | + if desc_or_code_sample.pre: |
| 124 | + this_method_dict["code_sample"] = desc_or_code_sample.pre.text |
| 125 | + |
| 126 | + parameter_tags = method_soup.find_all( |
| 127 | + lambda tag: tag.name == 'span' |
| 128 | + and tag.get('class') == ['parameter']) |
| 129 | + |
| 130 | + ## Parse parameters, if any are found: |
| 131 | + if len(parameter_tags) != 0: |
| 132 | + |
| 133 | + ## Create new empty dictionary for this_method_dict named "parameters": |
| 134 | + this_method_dict["parameters"] = {} |
| 135 | + |
| 136 | + optional = False |
| 137 | + |
| 138 | + # If there is a curly brace before the parameter list all parameters are optional |
| 139 | + prev = parameter_tags[0].find_previous('section') |
| 140 | + if prev: |
| 141 | + if "{<ol" in str(prev): |
| 142 | + optional = True |
| 143 | + |
| 144 | + for parameter_tag in parameter_tags: |
| 145 | + |
| 146 | + ## Create new empty dictionary this_method_parameters_dict to house all parameter |
| 147 | + ## keys for this method, to allow for multiple parameters. Also resets the |
| 148 | + ## previous parameter's data when looping through multiple parameters: |
| 149 | + this_method_parameters_dict = {} |
| 150 | + |
| 151 | + ## Parse for param name and usage string, convert to string (for markdownify): |
| 152 | + param_name = parameter_tag.find('span', class_ = 'parameter-name').text |
| 153 | + param_usage = str(parameter_tag.find('span', class_ = 'type-annotation')).replace('>>', '>\\>') |
| 154 | + |
| 155 | + ## Markdownify parameter usage and replace relative links with absolute: |
| 156 | + formatted_param_usage = md(param_usage, strip=['wbr']).replace("../../", "https://flutter.viam.dev/") |
| 157 | + this_method_parameters_dict["param_usage"] = formatted_param_usage |
| 158 | + |
| 159 | + # if a parameter is optional the previous parameter has a curly brace before it |
| 160 | + this_method_parameters_dict["optional"] = optional |
| 161 | + |
| 162 | + this_method_dict["parameters"][param_name] = this_method_parameters_dict |
| 163 | + |
| 164 | + if parameter_tag.text.endswith("{"): |
| 165 | + optional = True |
| 166 | + |
| 167 | + return_tags = method_soup.find_all( |
| 168 | + lambda tag: tag.name == 'span' |
| 169 | + and tag.get('class') == ['returntype']) |
| 170 | + |
| 171 | + if len(return_tags) != 0: |
| 172 | + |
| 173 | + ## Create new empty dictionary for this_method_dict named "return": |
| 174 | + this_method_dict["return"] = {} |
| 175 | + |
| 176 | + for return_tag in return_tags: |
| 177 | + |
| 178 | + ## Create new empty dictionary this_method_returns_dict to house all return |
| 179 | + ## keys for this method, to allow for multiple returns. Also resets the |
| 180 | + ## previous return's data when looping through multiple returns: |
| 181 | + this_method_return_dict = {} |
| 182 | + |
| 183 | + # Parse return usage string, convert to string (for markdownify): |
| 184 | + return_usage = str(return_tag) |
| 185 | + |
| 186 | + ## Markdownify return usage and replace relative links with absolute: |
| 187 | + formatted_return_usage = md(return_usage, strip=['wbr']).replace("../../", "https://flutter.viam.dev/") |
| 188 | + this_method_return_dict["return_usage"] = formatted_return_usage.replace('>>', '>\\>').replace("dart-core/Future-class.html", "dart-async/Future-class.html") |
| 189 | + |
| 190 | + # Parse return type: |
| 191 | + if return_tag.find('span', class_ = 'type-parameter'): |
| 192 | + return_type = return_tag.find('span', class_ = 'type-parameter').text |
| 193 | + else: |
| 194 | + return_type = return_tag.text |
| 195 | + |
| 196 | + this_method_dict["return"][return_type] = this_method_return_dict |
| 197 | + |
| 198 | + self.flutter_methods[type][resource][method_name] = this_method_dict |
| 199 | + |
| 200 | + elif type == "app": |
| 201 | + ##Flutter SDK has no APP API! |
| 202 | + pass |
| 203 | + |
| 204 | + return self.flutter_methods |
| 205 | + |
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