import React, { PureComponent } from "react"
import PropTypes from "prop-types"
import { getList } from "core/utils"
import { Iterable } from "immutable"

export default class Operation extends PureComponent {
  static propTypes = {
    operation: PropTypes.instanceOf(Iterable).isRequired,

    toggleShown: PropTypes.func.isRequired,
    onTryoutClick: PropTypes.func.isRequired,
    onCancelClick: PropTypes.func.isRequired,
    onExecute: PropTypes.func.isRequired,

    getComponent: PropTypes.func.isRequired,
    authActions: PropTypes.object,
    authSelectors: PropTypes.object,
    specActions: PropTypes.object.isRequired,
    specSelectors: PropTypes.object.isRequired,
    layoutActions: PropTypes.object.isRequired,
    layoutSelectors: PropTypes.object.isRequired,
    fn: PropTypes.object.isRequired
  }

  static defaultProps = {
    showSummary: true,
    response: null,
    allowTryItOut: true,
    displayOperationId: false,
    displayRequestDuration: false
  }

  shouldComponentUpdate(nextProps) {
    return this.props.operation !== nextProps.operation
  }

  render() {
    let {
      toggleShown,
      onTryoutClick,
      onCancelClick,
      onExecute,
      fn,
      getComponent,
      specActions,
      specSelectors,
      authActions,
      authSelectors
    } = this.props
    let operationProps = this.props.operation

    let {
      isShown,
      isShownKey,
      jumpToKey,
      path,
      method,
      op,
      showSummary,
      operationId,
      allowTryItOut,
      displayOperationId,
      displayRequestDuration,
      isDeepLinkingEnabled,
      tryItOutEnabled,
      executeInProgress
    } = operationProps.toJS()
    let response = operationProps.get("response")
    let request = operationProps.get("request")

    let {
      summary,
      description,
      deprecated,
      externalDocs,
      schemes
    } = op.operation

    let operation = operationProps.getIn(["op", "operation"])
    let responses = operation.get("responses")
    let produces = operation.get("produces")
    let security = operation.get("security") || specSelectors.security()
    let parameters = getList(operation, ["parameters"])
    let operationScheme = specSelectors.operationScheme(path, method)

    const Responses = getComponent("responses")
    const Parameters = getComponent( "parameters" )
    const Execute = getComponent( "execute" )
    const Clear = getComponent( "clear" )
    const AuthorizeOperationBtn = getComponent( "authorizeOperationBtn" )
    const JumpToPath = getComponent("JumpToPath", true)
    const Collapse = getComponent( "Collapse" )
    const Markdown = getComponent( "Markdown" )
    const Schemes = getComponent( "schemes" )

    // Merge in Live Response
    if(responses && response && response.size > 0) {
      let notDocumented = !responses.get(String(response.get("status")))
      response = response.set("notDocumented", notDocumented)
    }

    let onChangeKey = [ path, method ] // Used to add values to _this_ operation ( indexed by path and method )

    return (
        <div className={deprecated ? "opblock opblock-deprecated" : isShown ? `opblock opblock-${method} is-open` : `opblock opblock-${method}`} id={isShownKey.join("-")} >
          <div className={`opblock-summary opblock-summary-${method}`} onClick={toggleShown} >
              <span className="opblock-summary-method">{method.toUpperCase()}</span>
              <span className={ deprecated ? "opblock-summary-path__deprecated" : "opblock-summary-path" } >
                <a
                  className="nostyle"
                  onClick={(e) => e.preventDefault()}
                  href={ isDeepLinkingEnabled ? `#/${isShownKey[1]}/${isShownKey[2]}` : ""} >
                  <span>{path}</span>
                </a>
                <JumpToPath path={jumpToKey} />
              </span>

            { !showSummary ? null :
                <div className="opblock-summary-description">
                  { summary }
                </div>
            }

            { displayOperationId && operationId ? <span className="opblock-summary-operation-id">{operationId}</span> : null }

            {
              (!security || !security.count()) ? null :
                <AuthorizeOperationBtn authActions={ authActions }
                  security={ security }
                  authSelectors={ authSelectors }/>
            }
          </div>

          <Collapse isOpened={isShown}>
            <div className="opblock-body">
              { deprecated && <h4 className="opblock-title_normal"> Warning: Deprecated</h4>}
              { description &&
                <div className="opblock-description-wrapper">
                  <div className="opblock-description">
                    <Markdown source={ description } />
                  </div>
                </div>
              }
              {
                externalDocs && externalDocs.get("url") ?
                <div className="opblock-external-docs-wrapper">
                  <h4 className="opblock-title_normal">Find more details</h4>
                  <div className="opblock-external-docs">
                    <span className="opblock-external-docs__description">
                      <Markdown source={ externalDocs.get("description") } />
                    </span>
                    <a className="opblock-external-docs__link" href={ externalDocs.get("url") }>{ externalDocs.get("url") }</a>
                  </div>
                </div> : null
              }
              <Parameters
                parameters={parameters}
                operation={operation}
                onChangeKey={onChangeKey}
                onTryoutClick = { onTryoutClick }
                onCancelClick = { onCancelClick }
                tryItOutEnabled = { tryItOutEnabled }
                allowTryItOut={allowTryItOut}

                fn={fn}
                getComponent={ getComponent }
                specActions={ specActions }
                specSelectors={ specSelectors }
                pathMethod={ [path, method] }
              />

              {!tryItOutEnabled || !allowTryItOut ? null : schemes && schemes.size ? <div className="opblock-schemes">
                    <Schemes schemes={ schemes }
                             path={ path }
                             method={ method }
                             specActions={ specActions }
                             currentScheme={ operationScheme } />
                  </div> : null
              }

            <div className={(!tryItOutEnabled || !response || !allowTryItOut) ? "execute-wrapper" : "btn-group"}>
              { !tryItOutEnabled || !allowTryItOut ? null :

                  <Execute
                    operation={ operation }
                    specActions={ specActions }
                    specSelectors={ specSelectors }
                    path={ path }
                    method={ method }
                    onExecute={ onExecute } />
              }

              { (!tryItOutEnabled || !response || !allowTryItOut) ? null :
                  <Clear
                    specActions={ specActions }
                    path={ path }
                    method={ method }/>
              }
            </div>

            {executeInProgress ? <div className="loading-container"><div className="loading"></div></div> : null}

              { !responses ? null :
                  <Responses
                    responses={ responses }
                    request={ request }
                    tryItOutResponse={ response }
                    getComponent={ getComponent }
                    specSelectors={ specSelectors }
                    specActions={ specActions }
                    produces={ produces }
                    producesValue={ operation.get("produces_value") }
                    pathMethod={ [path, method] }
                    displayRequestDuration={ displayRequestDuration }
                    fn={fn} />
              }
            </div>
          </Collapse>
        </div>
    )
  }

}