local assert = require("luassert")
local scraper = require("scraper").module_doc

local get_doc_from_page = scraper.get_doc_from_page

describe("Scrap documentation", function()
   it("should return a valid AST for an empty module", function()
      local ast <const>, nodes <const> = get_doc_from_page("", "empty")
      assert.same(ast, {
         children = {
            {
               children = {},
               name = "Signal",
               token = "enum",
            }
         },
         name = "Empty",
         token = "module",
      })
      assert.same(nodes, {})
   end)

   it("should produce Variable and `property::` Signal nodes", function()
      local ast <const> = get_doc_from_page([[
            <h2 class="section-header">
               <a name="Object_properties"></a>Object properties
            </h2>
            <dl class="function">
               <dt>
                  <a class="copy-link js-copy-link" name="value" href="#value">🔗</a>
                  <strong>value</strong>
                  <span class="proptype"><span class="summary_type">number</span></span>
                  <span class="baseclass"> · 1 signal </span>
               </dt>
               <dd>
                  <h3>Constraints:</h3>
                  <span class="property_type">
                     <table class="see_also">
                     <tbody><tr class="">
                     <td style="padding-left:0px;">
                        <i>
                        Default value
                        </i>
                     </td>
                     <td>: <code>0</code></td>
                     </tr><tr>
                     </tr><tr class="">
                     <td style="padding-left:0px;">
                        <i>
                        Negative allowed
                        </i>
                     </td>
                     <td>: true</td>
                     </tr><tr>
                  </tr></tbody></table>
                  </span>
               </dd>
            </dl>
         ]], "property_signal")
      assert.same(ast, {
         children = {
            {
               children = {
                  {
                     name = "property::value",
                     token = "identifier",
                  },
               },
               name = "Signal",
               token = "enum",
            },
            {
               name = "value",
               types = { "number" },
               token = "variable",
            }
         },
         name = "Property_signal",
         token = "module",
      })
   end)

   it("should produce Enum nodes when an Object Property type is a String with constraints", function()
      local ast <const> = get_doc_from_page([[
         <h2 class="section-header">
            <a name="Object_properties"></a>Object properties
         </h2>
         <dl class="function">
         <dt>
            <a
               class="copy-link js-copy-link"
               name="horizontal_fit_policy"
               href="#horizontal_fit_policy"
               >🔗</a
            >
            <strong>horizontal_fit_policy</strong>
            <span class="proptype"><span class="summary_type">string</span></span>
            <span class="baseclass"> · 1 signal </span>
         </dt>
         <dd>
            <span class="property_type">
               <table class="see_also">
               <tbody>
                  <tr class="">
                     <td style="padding-left: 0px">
                     <i> Default value </i>
                     </td>
                     <td>: <code>"auto"</code></td>
                  </tr>
                  <tr></tr>
                  <tr class="">
                     <td style="padding-left: 0px">
                     <i> Valid values: </i>
                     </td>
                  </tr>
                  <tr></tr>
                  <tr class="see_also_sublist">
                     <td style="padding-left: 15px">
                     <i>
                        <code>"auto"</code>
                     </i>
                     </td>
                     <td>
                     : Honor the <code>resize</code> variable and preserve the aspect
                     ratio.
                     </td>
                  </tr>
                  <tr></tr>
                  <tr class="see_also_sublist">
                     <td style="padding-left: 15px">
                     <i>
                        <code>"none"</code>
                     </i>
                     </td>
                     <td>: Do not resize at all.</td>
                  </tr>
                  <tr></tr>
                  <tr class="see_also_sublist">
                     <td style="padding-left: 15px">
                     <i>
                        <code>"fit"</code>
                     </i>
                     </td>
                     <td>: Resize to the widget width.</td>
                  </tr>
                  <tr></tr>
               </tbody>
               </table>
            </span>
         </dd>
         </dl>
         ]], "property_enum")
      assert.same(ast, {
         children = {
            {
               children = {
                  {
                     name = "property::horizontal_fit_policy",
                     token = "identifier",
                  },
               },
               name = "Signal",
               token = "enum",
            },
            {
               children = {
                  {
                     name = "auto",
                     token = "identifier",
                  },
                  {
                     name = "none",
                     token = "identifier",
                  },
                  {
                     name = "fit",
                     token = "identifier",
                  },
               },
               name = "Horizontal_fit_policy",
               token = "enum",
            },
            {
               name = "horizontal_fit_policy",
               types = { "Horizontal_fit_policy" },
               token = "variable",
            },
         },
         name = "Property_enum",
         token = "module",
      })
   end)

   it("should produce a `string` typed Variable node when a String Property has no constraint", function()
      local ast <const> = get_doc_from_page([[
            <h2 class="section-header">
               <a name="Object_properties"></a>Object properties
            </h2>
            <dl class="function">
               <dt>
                  <a class="copy-link js-copy-link" name="markup" href="#markup">🔗</a>
                  <strong>markup</strong>
                  <span class="proptype"><span class="summary_type">string</span></span>
                  <span class="baseclass"> · 1 signal </span>
               </dt>
               <dd>
                  <span class="property_type">string</span>
               </dd>
            </dl>
         ]], "property_string")
      assert.same(ast, {
         children = {
            {
               children = {
                  {
                     name = "property::markup",
                     token = "identifier",
                  },
               },
               name = "Signal",
               token = "enum",
            },
            {
               name = "markup",
               types = { "string" },
               token = "variable",
            }
         },
         name = "Property_string",
         token = "module",
      })
   end)

   it("should produce Signal nodes", function()
      local ast <const> = get_doc_from_page([[
            <h2 class="section-header"><a name="Signals"></a>Signals</h2>
            <dl class="function">
            <dt>
               <a
                  class="copy-link js-copy-link"
                  name="widget::layout_changed"
                  href="#widget::layout_changed"
                  >🔗</a
               >
               <strong>widget::layout_changed</strong>
               <span class="baseclass"> ·&nbsp;Inherited from wibox.widget.base </span>
            </dt>
            <dd></dd>
            <dt>
               <a
                  class="copy-link js-copy-link"
                  name="widget::redraw_needed"
                  href="#widget::redraw_needed"
                  >🔗</a
               >
               <strong>widget::redraw_needed</strong>
               <span class="baseclass"> ·&nbsp;Inherited from wibox.widget.base </span>
            </dt>
            <dd></dd>
            </dl>
         ]], "signal")
      assert.same(ast, {
         children = {
            {
               children = {
                  {
                     name = "widget::layout_changed",
                     token = "identifier",
                  },
                  {
                     name = "widget::redraw_needed",
                     token = "identifier",
                  },
               },
               name = "Signal",
               token = "enum",
            },
         },
         name = "Signal",
         token = "module",
      })
   end)
end)