import { Body, Controller, Delete, Get, Param, Post, Put, Res } from '@nestjs/common';
import { EventEpisodeService } from './event-episodes.service'; 
import { Response } from 'express';
import { GenericResponse } from '../common/GenericResponse.model';
import EventEpisode from './event-episodes.entity';  
import { ApiTags, ApiOperation, ApiResponse, ApiParam, ApiBody } from '@nestjs/swagger';

@ApiTags('event-episode')
@Controller('event-episode')
export class EventEpisodeController {
    constructor(private eventEpisodeService: EventEpisodeService) {}

    @Get("/all")
    @ApiOperation({ summary: 'Get all event episodes' })
    @ApiResponse({
        status: 200,
        description: 'Successfully retrieved all event episodes',
    })
    @ApiResponse({
        status: 404,
        description: 'No event episodes found',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NOT_FOUND",
                "stackTrace": "No event episodes found"
            },
            "data": null
        }
    })
    async getAllEventEpisodes(@Res() res: Response) {
        const response = await this.eventEpisodeService.findAll() || [];
        if (!response) {
            const errorResponse = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NOT_FOUND',
                stackTrace: 'No event episodes found'
            }, null);
            return res.status(404).send(errorResponse);
        }
        const httpResponse = new GenericResponse(null, response);
        res.send(httpResponse);
    }

    @Get(':id')
    @ApiOperation({ summary: 'Get event episode by ID' })
    @ApiParam({ name: 'id', type: Number, description: 'Event Episode ID' })
    @ApiResponse({
        status: 400,
        description: 'ID is required',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NO_ID_REQ",
                "stackTrace": "Request"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 404,
        description: 'Event episode not found',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NOT_FOUND",
                "stackTrace": "Event episode not found"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 200,
        description: 'Successfully retrieved event episode by ID',
    })
    async findById(@Param('id') id: number, @Res() res: Response) {
        if (!id) {
            const response = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NO_ID_REQ',
                stackTrace: 'Request'
            }, null);
            return res.status(400).send(response);
        }
        const response = await this.eventEpisodeService.findByPk(id) || {};
        if (!response) {
            const errorResponse = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NOT_FOUND',
                stackTrace: `Event episode with ID ${id} not found`
            }, null);
            return res.status(404).send(errorResponse);
        }
        const httpResponse = new GenericResponse(null, response);
        res.status(200).send(httpResponse);
    }

    @Post('/filter')
    @ApiOperation({ summary: 'Filter event episodes based on criteria' })
    @ApiBody({ type: EventEpisode, description: 'Filter criteria for event episodes' })
    @ApiResponse({
        status: 400,
        description: 'Invalid filter criteria',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.INVALID_CRITERIA",
                "stackTrace": "Request"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 404,
        description: 'No event episodes found based on filter criteria',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NOT_FOUND",
                "stackTrace": "No event episodes found based on the filter criteria"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 200,
        description: 'Successfully filtered event episodes',
    })
    async filter(@Body() eventEpisode: EventEpisode, @Res() res: Response) {
        if (!eventEpisode) {
            const response = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.INVALID_CRITERIA',
                stackTrace: 'Request'
            }, null);
            return res.status(400).send(response);
        }
        const response = await this.eventEpisodeService.filter(eventEpisode) || [];
        if (!response) {
            const errorResponse = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NOT_FOUND',
                stackTrace: 'No event episodes found based on the filter criteria'
            }, null);
            return res.status(404).send(errorResponse);
        }
        const httpResponse = new GenericResponse(null, response);
        res.status(200).send(httpResponse);
    }

    @Post()
    @ApiOperation({ summary: 'Insert a new event episode' })
    @ApiBody({ type: EventEpisode, description: 'Event episode data to insert' })
    @ApiResponse({
        status: 400,
        description: 'Invalid event episode data',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.INVALID_DATA",
                "stackTrace": "Request"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 201,
        description: 'Successfully created an event episode',
    })
    async insert(@Body() eventEpisode: EventEpisode, @Res() res: Response) {
        if (!eventEpisode) {
            const response = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.INVALID_DATA',
                stackTrace: 'Request'
            }, null);
            return res.status(400).send(response);
        }
        delete eventEpisode.id;  // Ensure no ID is passed in the creation
        const response = await this.eventEpisodeService.upsert(eventEpisode, true);
        const httpResponse = new GenericResponse(null, response);
        res.status(201).send(httpResponse);
    }

    @Put()
    @ApiOperation({ summary: 'Update an existing event episode' })
    @ApiBody({ type: EventEpisode, description: 'Event episode data to update' })
    @ApiResponse({
        status: 400,
        description: 'Invalid event episode data or ID missing',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.INVALID_DATA",
                "stackTrace": "Request"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 404,
        description: 'Event episode not found',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NOT_FOUND",
                "stackTrace": "Event episode not found"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 200,
        description: 'Successfully updated event episode',
    })
    async update(@Body() eventEpisode: EventEpisode, @Res() res: Response) {
        if (!eventEpisode || !eventEpisode.id) {
            const response = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NO_ID_REQ',
                stackTrace: 'Request'
            }, null);
            return res.status(400).send(response);
        }
        const response = await this.eventEpisodeService.upsert(eventEpisode, false);
        if (!response) {
            const errorResponse = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NOT_FOUND',
                stackTrace: `Event episode with ID ${eventEpisode.id} not found`
            }, null);
            return res.status(404).send(errorResponse);
        }
        const httpResponse = new GenericResponse(null, response);
        res.status(200).send(httpResponse);
    }

    @Delete(':id')
    @ApiOperation({ summary: 'Delete an event episode by ID' })
    @ApiParam({ name: 'id', type: Number, description: 'Event episode ID to delete' })
    @ApiResponse({
        status: 400,
        description: 'ID parameter is required',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NO_ID_REQ",
                "stackTrace": "Request"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 404,
        description: 'Event episode not found',
        example: {
            "notification": {
                "exception": true,
                "exceptionSeverity": "HIGH",
                "exceptionMessage": "ERR.NOT_FOUND",
                "stackTrace": "Event episode not found"
            },
            "data": null
        }
    })
    @ApiResponse({
        status: 200,
        description: 'Successfully deleted event episode',
    })
    async deleteById(@Param('id') id: number, @Res() res: Response) {
        if (!id) {
            const response = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NO_ID_REQ',
                stackTrace: 'Request'
            }, null);
            return res.status(400).send(response);
        }
        const response = await this.eventEpisodeService.remove(id) || {};
        if (!response) {
            const errorResponse = new GenericResponse({
                exception: true,
                exceptionSeverity: 'HIGH',
                exceptionMessage: 'ERR.NOT_FOUND',
                stackTrace: `Event episode with ID ${id} not found`
            }, null);
            return res.status(404).send(errorResponse);
        }
        const httpResponse = new GenericResponse(null, response);
        res.status(200).send(httpResponse);
    }
}