import * as React from "react";
import * as System from "~/components/system";
import * as Actions from "~/common/actions";
import * as Constants from "~/common/constants";
import * as SVG from "~/common/svg";

import { css } from "@emotion/react";
import {
  ButtonPrimary,
  ButtonSecondary,
} from "~/components/system/components/Buttons";
import { dispatchCustomEvent } from "~/common/custom-events";

import ScenePage from "~/components/core/ScenePage";
import Profile from "~/components/core/Profile";

const STYLES_BUTTONS = css`
  display: inline-flex;
  flex-direction: row;
  align-items: center;
`;

const STATUS_BUTTON_MAP = {
  trusted: "Remove peer",
  untrusted: "Add peer",
  sent: "Cancel request",
  received: "Accept request",
};

export default class SceneProfile extends React.Component {
  state = {
    loading: false,
    trustStatus: "untrusted",
    followStatus: false,
    followLoading: false,
    trustLoading: false,
  };

  componentDidMount = () => {
    this.setStatus(this.props.viewer);
  };

  componentDidUpdate(prevProps) {
    if (prevProps.data.username !== this.props.data.username) {
      this.setStatus(this.props.viewer);
    }
  }

  setStatus = (viewer) => {
    let newState = {
      trustStatus: "untrusted",
      followStatus: false,
      followLoading: false,
      trustLoading: false,
    };
    let trust = viewer.trusted.filter((entry) => {
      return entry.target_user_id === this.props.data.id;
    });
    if (trust.length) {
      let relation = trust[0];
      newState.trustId = relation.id;
      if (relation.data.verified) {
        newState.trustStatus = "trusted";
      } else {
        newState.trustStatus = "sent";
      }
    }
    let pendingTrust = viewer.pendingTrusted.filter((entry) => {
      return entry.owner_user_id === this.props.data.id;
    });
    if (pendingTrust.length) {
      let relation = pendingTrust[0];
      newState.trustId = relation.id;
      if (pendingTrust[0].data.verified) {
        newState.trustStatus = "trusted";
      } else {
        newState.trustStatus = "received";
      }
    }
    if (
      viewer.subscriptions.filter((entry) => {
        return entry.target_user_id === this.props.data.id;
      }).length
    ) {
      newState.followStatus = true;
    }
    this.setState(newState);
  };

  _handleUpdate = async (e) => {
    let response = await this.props.onRehydrate();
    if (!response) {
      dispatchCustomEvent({
        name: "create-alert",
        detail: {
          alert: {
            message:
              "We're having trouble connecting right now. Please try again later",
          },
        },
      });
      return null;
    }

    if (response.error) {
      dispatchCustomEvent({
        name: "create-alert",
        detail: { alert: { decorator: response.decorator } },
      });
      return null;
    }

    let viewer = response.data;

    this.setStatus(viewer);
  };

  _handleTrust = () => {
    this.setState({ trustLoading: true }, async () => {
      let response;
      if (
        this.state.trustStatus === "untrusted" ||
        this.state.trustStatus === "sent"
      ) {
        response = await Actions.createTrustRelationship({
          userId: this.props.data.id,
        });
        console.log(response);
      } else if (this.state.trustStatus === "received") {
        response = await Actions.updateTrustRelationship({
          userId: this.props.data.id,
        });
        console.log(response);
      } else {
        response = await Actions.deleteTrustRelationship({
          id: this.state.trustId,
        });
        console.log(response);
      }
      await this._handleUpdate();
    });
  };

  _handleFollow = () => {
    this.setState({ followLoading: true }, async () => {
      let response = await Actions.createSubscription({
        userId: this.props.data.id,
      });
      console.log(response);
      await this._handleUpdate();
    });
  };

  render() {
    let buttons = (
      <div css={STYLES_BUTTONS}>
        {this.state.followStatus ? (
          <ButtonSecondary
            loading={this.state.followLoading}
            style={{ margin: "0px 8px", minWidth: 152 }}
            onClick={this._handleFollow}
          >
            Unfollow
          </ButtonSecondary>
        ) : (
          <ButtonPrimary
            loading={this.state.followLoading}
            style={{ margin: "0px 8px", minWidth: 152 }}
            onClick={this._handleFollow}
          >
            Follow
          </ButtonPrimary>
        )}
        {this.state.trustStatus === "untrusted" ||
        this.state.trustStatus === "received" ? (
          <ButtonPrimary
            loading={this.state.trustLoading}
            style={{ margin: "0px 8px", minWidth: 152 }}
            onClick={this._handleTrust}
          >
            {STATUS_BUTTON_MAP[this.state.trustStatus]}
          </ButtonPrimary>
        ) : (
          <ButtonSecondary
            loading={this.state.trustLoading}
            style={{ margin: "0px 8px", minWidth: 152 }}
            onClick={this._handleTrust}
          >
            {STATUS_BUTTON_MAP[this.state.trustStatus]}
          </ButtonSecondary>
        )}
      </div>
    );
    return (
      <ScenePage>
        <Profile
          {...this.props}
          onAction={this.props.onAction}
          creator={this.props.data}
          sceneId={this.props.sceneId}
          buttons={
            this.props.viewer.username === this.props.data.username
              ? null
              : buttons
          }
          editing={this.props.viewer.username === this.props.data.username}
        />
      </ScenePage>
    );
  }
}