import { LiveAnnouncer } from '@angular/cdk/a11y';
import { COMMA, ENTER } from '@angular/cdk/keycodes';
import { Component, Inject, inject } from '@angular/core';
import { MatChipInputEvent } from '@angular/material/chips';
import { MatDialogRef, MAT_DIALOG_DATA } from '@angular/material/dialog';
import { LocalParticipant } from 'livekit-client';

import { EgressClient, EncodedFileOutput, EncodedFileType, EncodedOutputs, IngressInput, Room, RoomCompositeOptions, RoomServiceClient, SegmentedFileOutput, SegmentedFileProtocol, StreamOutput, StreamProtocol } from 'livekit-server-sdk';
import { RoomApiService } from 'src/app/services/room-api.service';

@Component({
    selector: 'app-room-api-dialog',
    templateUrl: './room-api-dialog.component.html',
    styleUrls: ['./room-api-dialog.component.css']
})
export class RoomApiDialogComponent {

    room: Room;
    localParticipant: LocalParticipant;
    roomServiceClient: RoomServiceClient;
    egressClient: EgressClient;

    apiRoomName: string;
    apiParticipantIdentity: string;
    apiTrackSid: string;
    muteTrack: boolean = true;

    egressRoomName: string;
    egressId: string;
    audioTrackId: string;
    videoTrackId: string;

    ROOM_COMPOSITE_LAYOUTS = ['grid', 'speaker', 'single-speaker'];
    roomCompositeLayoutSelected: string = 'grid';
    roomCompositeAudioOnly: boolean = false;
    roomCompositeVideoOnly: boolean = false;

    fileOutputSelected: boolean = true;
    streamOutputSelected: boolean = false;
    s3Endpoint: string = 'http://localhost:9100'; // 'http://minio:9000'
    rtmpUrls: string[] = ['rtmp://172.17.0.1:1936/live/']
    segmentOutputSelected: boolean = false;
    segmentDuration: number = 6;

    ingressRoomName: string;
    ingressId: string;
    inputTypeSelected: IngressInput = IngressInput.RTMP_INPUT;
    INGRESS_INPUT_TYPES: { value: IngressInput, viewValue: string }[] = [
        { value: IngressInput.RTMP_INPUT, viewValue: 'RTMP' },
        { value: IngressInput.WHIP_INPUT, viewValue: 'WHIP' },
        { value: IngressInput.URL_INPUT, viewValue: 'URL' },
    ];

    response: string;

    // s3Config = {
    //     endpoint: this.s3Endpoint,
    //     metadata: { "mytag": "myvalue" },
    //     tagging: "mytagging"
    // };

    announcer = inject(LiveAnnouncer);
    addOnBlur = true;
    readonly separatorKeysCodes = [ENTER, COMMA] as const;

    constructor(
        private roomApiService: RoomApiService,
        public dialogRef: MatDialogRef<RoomApiDialogComponent>,
        @Inject(MAT_DIALOG_DATA) public data: any
    ) {
        this.room = data.room;
        this.localParticipant = data.localParticipant;
        this.apiRoomName = this.room?.name;
        this.apiParticipantIdentity = this.localParticipant?.identity;
        this.apiTrackSid = this.localParticipant?.videoTrackPublications.values().next().value?.trackSid;
        this.egressRoomName = this.room?.name;
        this.audioTrackId = this.localParticipant?.audioTrackPublications.values().next().value?.trackSid;
        this.videoTrackId = this.localParticipant?.videoTrackPublications.values().next().value?.trackSid;
        this.ingressRoomName = this.room?.name;
    }

    async listRooms() {
        console.log('Listing rooms');
        try {
            const rooms = await this.roomApiService.listRooms();
            this.response = JSON.stringify(rooms, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async getRoom() {
        console.log('Getting room');
        try {
            const room = await this.roomApiService.getRoom(this.apiRoomName);
            this.response = JSON.stringify(room, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async deleteRoom() {
        console.log('Deleting room');
        try {
            await this.roomApiService.deleteRoom(this.apiRoomName);
            this.response = 'Room deleted';
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
            console.log(JSON.stringify(error));
        }
    }

    async listParticipants() {
        console.log('Listing participants');
        try {
            const participants = await this.roomApiService.listParticipants(this.apiRoomName);
            this.response = JSON.stringify(participants, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async getParticipant() {
        console.log('Getting participant');
        try {
            const participant = await this.roomApiService.getParticipant(this.apiRoomName, this.apiParticipantIdentity);
            this.response = JSON.stringify(participant, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async removeParticipant() {
        console.log('Removing participant');
        try {
            await this.roomApiService.removeParticipant(this.apiRoomName, this.apiParticipantIdentity);
            this.response = 'Participant removed';
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async mutePublishedTrack() {
        console.log(`${this.muteTrack ? 'Muting' : 'Unmuting'} track`);
        try {
            await this.roomApiService.mutePublishedTrack(this.apiRoomName, this.apiParticipantIdentity, this.apiTrackSid, this.muteTrack);
            this.response = `Track ${this.muteTrack ? 'muted' : 'unmuted'}`;
            this.muteTrack = !this.muteTrack;
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async listEgress() {
        console.log('Listing egress');
        try {
            const egress = await this.roomApiService.listEgress();
            this.response = JSON.stringify(egress, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async getEgress() {
        console.log('Getting egress');
        try {
            const egress = await this.roomApiService.getEgress(this.egressId);
            this.response = JSON.stringify(egress, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async startRoomCompositeEgress() {
        console.log('Starting room composite egress');
        try {
            const encodedOutputs = this.getEncodedOutputs();
            const roomCompositeOptions: RoomCompositeOptions = {
                layout: this.roomCompositeLayoutSelected,
                audioOnly: this.roomCompositeAudioOnly,
                videoOnly: this.roomCompositeVideoOnly
            }
            const egress = await this.roomApiService.startRoomCompositeEgress(this.egressRoomName, roomCompositeOptions, encodedOutputs);
            this.response = JSON.stringify(egress, null, 4);
            this.egressId = egress.egress_id;
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async startTrackCompositeEgress() {
        console.log('Starting track composite egress');
        try {
            const encodedOutputs = this.getEncodedOutputs();
            const egress = await this.roomApiService.startTrackCompositeEgress(this.egressRoomName, this.audioTrackId, this.videoTrackId, encodedOutputs);
            this.response = JSON.stringify(egress, null, 4);
            this.egressId = egress.egress_id;
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async startTrackEgress() {
        console.log('Starting track egress');
        try {
            const encodedOutputs = this.getEncodedOutputs();
            const egress = await this.roomApiService.startTrackEgress(this.egressRoomName, !!this.audioTrackId ? this.audioTrackId : this.videoTrackId, encodedOutputs);
            this.response = JSON.stringify(egress, null, 4);
            this.egressId = egress.egress_id;
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async stopEgress() {
        console.log('Stopping egress');
        try {
            await this.roomApiService.stopEgress(this.egressId);
            this.response = 'Egress stopped';
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async listIngress() {
        console.log('Listing ingress');
        try {
            const ingress = await this.roomApiService.listIngress();
            this.response = JSON.stringify(ingress, null, 4);
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async createIngress() {
        console.log('Creating ingress');
        try {
            const ingress = await this.roomApiService.createIngress(this.ingressRoomName, this.inputTypeSelected);
            this.response = JSON.stringify(ingress, null, 4);
            this.ingressId = ingress.ingress_id;
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    async deleteIngress() {
        console.log('Deleting ingress');
        try {
            await this.roomApiService.deleteIngress(this.ingressId);
            this.response = 'Ingress deleted';
        } catch (error: any) {
            this.response = 'Error [' + error.error.msg + ']';
        }
    }

    addRtmpUrl(event: MatChipInputEvent): void {
        const value = (event.value || '').trim();
        if (value) {
            this.rtmpUrls.push(value);
        }
        event.chipInput!.clear();
    }

    removeRtmpUrl(url: string): void {
        const index = this.rtmpUrls.indexOf(url);
        if (index >= 0) {
            this.rtmpUrls.splice(index, 1);
            this.announcer.announce(`Removed ${url}`);
        }
    }

    private getEncodedOutputs(): EncodedOutputs {
        // this.s3Config.endpoint = this.s3Endpoint;
        const encodedOutputs: EncodedOutputs = {};
        if (this.fileOutputSelected) {
            encodedOutputs.file = new EncodedFileOutput({
                fileType: EncodedFileType.DEFAULT_FILETYPE,
                filepath: 'room-composite-{room_id}-{room_name}-{time}',
            });
        }
        if (this.streamOutputSelected) {
            encodedOutputs.stream = new StreamOutput({
                urls: this.rtmpUrls,
                protocol: StreamProtocol.RTMP
            });
        }
        if (this.segmentOutputSelected) {
            encodedOutputs.segments = new SegmentedFileOutput({
                protocol: SegmentedFileProtocol.HLS_PROTOCOL,
                segmentDuration: this.segmentDuration,
                // s3: this.s3Config
            });
        }
        return encodedOutputs;
    }

}