module IHP.IDE.SchemaDesigner.View.Columns.EditForeignKey where

import IHP.ViewPrelude
import IHP.IDE.SchemaDesigner.Types
import IHP.IDE.ToolServer.Types
import IHP.IDE.SchemaDesigner.View.Layout

data EditForeignKeyView = EditForeignKeyView
    { statements :: [Statement]
    , tableName :: Text
    , columnName :: Text
    , tableNames :: [Text]
    , referenceTable :: Text
    , constraintName :: Text
    , onDelete :: Text
    }

instance View EditForeignKeyView where
    html EditForeignKeyView { .. } = [hsx|
        <div class="row no-gutters bg-white" id="schema-designer-viewer">
            {renderObjectSelector (zip [0..] statements) (Just tableName)}
            {renderColumnSelector tableName  (zip [0..] columns) statements}
        </div>
        {migrationStatus}
        {renderModal modal}
    |]
        where
            table = findStatementByName tableName statements
            columns = maybe [] ((.columns) . unsafeGetCreateTable) table

            modalContent = [hsx|
                <form method="POST" action={UpdateForeignKeyAction}>
                    <input type="hidden" name="tableName" value={tableName}/>
                    <input type="hidden" name="columnName" value={columnName}/>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Reference Table:</label>
                        <div class="col-sm-10">
                            <select name="referenceTable" class="form-control select2" autofocus="autofocus">
                                {forEach tableNames renderTableNameSelector}
                            </select>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">Name:</label>
                        <div class="col-sm-10">
                            <input name="constraintName" type="text" class="form-control" value={constraintName}/>
                        </div>
                    </div>

                    <div class="form-group row">
                        <label class="col-sm-2 col-form-label">On Delete:</label>
                        <div class="col-sm-10">
                            <select name="onDelete" class="form-control select2">
                                {onDeleteSelector "NoAction"}
                                {onDeleteSelector "Restrict"}
                                {onDeleteSelector "SetNull"}
                                {onDeleteSelector "SetDefault"}
                                {onDeleteSelector "Cascade"}
                            </select>
                        </div>
                    </div>

                    <div class="text-right">
                        <button type="submit" class="btn btn-primary">Edit Constraint</button>
                    </div>
                </form>
                {select2}
            |]
                where
                    renderTableNameSelector tableName = if tableName == referenceTable
                        then preEscapedToHtml [plain|<option selected>#{tableName}</option>|]
                        else preEscapedToHtml [plain|<option>#{tableName}</option>|]
                    onDeleteSelector option = if option == onDelete
                        then preEscapedToHtml [plain|<option selected>#{option}</option>|]
                        else preEscapedToHtml [plain|<option>#{option}</option>|]
                    select2 = preEscapedToHtml [plain|
                        <script>
                            $('.select2').select2();
                        </script>
                    |]
            modalFooter = mempty 
            modalCloseUrl = pathTo ShowTableAction { tableName }
            modalTitle = "Edit Foreign Key Constraint"
            modal = Modal { modalContent, modalFooter, modalCloseUrl, modalTitle }