/**
 * Job Adapter
 *
 * Handles all job-related API operations including fetching jobs, skills, and accessories.
 * Provides a clean interface for job management with automatic
 * request handling, caching, and error management.
 *
 * @module adapters/job
 */

import { BaseAdapter } from './base.adapter'
import type { AdapterOptions } from './types'
import { DEFAULT_ADAPTER_CONFIG } from './config'
import type { Job, JobSkill, JobAccessory } from '$lib/types/api/entities'

/**
 * Parameters for searching job skills
 */
export interface SearchJobSkillsParams {
	query?: string
	jobId: string  // Required for API
	page?: number
	per?: number
}

/**
 * Job skill search response
 */
export interface JobSkillSearchResponse {
	results: JobSkill[]
	total: number
	page: number
	totalPages: number
	meta?: {
		count: number
		page: number
		perPage: number
		totalPages: number
	}
}

/**
 * Job adapter for managing jobs and their related data
 */
export class JobAdapter extends BaseAdapter {
	constructor(options?: AdapterOptions) {
		super(options)
	}

	/**
	 * Gets all available jobs
	 * Jobs are returned as a flat array from the API
	 */
	async getAll(): Promise<Job[]> {
		const response = await this.request<Job[]>('/jobs', {
			method: 'GET',
			cacheTTL: 300000 // Cache for 5 minutes - jobs don't change often
		})
		return response
	}

	/**
	 * Gets a single job by ID
	 */
	async getById(id: string): Promise<Job> {
		const response = await this.request<{ job: Job }>(`/jobs/${id}`, {
			method: 'GET',
			cacheTTL: 300000 // Cache for 5 minutes
		})
		return response.job
	}

	/**
	 * Gets all skills for a specific job
	 * Returns skills categorized by type (main, sub, emp, base)
	 */
	async getSkills(jobId: string): Promise<JobSkill[]> {
		const response = await this.request<{ skills: JobSkill[] }>(`/jobs/${jobId}/skills`, {
			method: 'GET',
			cacheTTL: 300000 // Cache for 5 minutes
		})
		return response.skills
	}

	/**
	 * Gets all accessories available for a specific job
	 * Only returns data if the job supports accessories
	 */
	async getAccessories(jobId: string): Promise<JobAccessory[]> {
		const response = await this.request<{ accessories: JobAccessory[] }>(
			`/jobs/${jobId}/accessories`,
			{
				method: 'GET',
				cacheTTL: 300000 // Cache for 5 minutes
			}
		)
		return response.accessories
	}

	/**
	 * Searches for job skills based on query and filters
	 * Used for the skill selection interface with pagination
	 */
	async searchSkills(params: SearchJobSkillsParams): Promise<JobSkillSearchResponse> {
		const response = await this.request<{
			results: JobSkill[]
			meta?: {
				count?: number
				total_pages?: number
				per_page?: number
			}
		}>('/search/job_skills', {
			method: 'POST',
			body: {
				search: {
					query: params.query || '',
					job: params.jobId
				},
				page: params.page || 1,
				per: params.per || 50
			},
			cacheTTL: 60000 // Cache for 1 minute
		})

		// Transform the response to match the expected format
		return {
			results: response.results,
			page: params.page || 1,
			total: response.meta?.count || 0,
			totalPages: response.meta?.total_pages || 1,
			meta: response.meta
		}
	}

	/**
	 * Gets all available job skills (not filtered by job)
	 * Useful for browsing all skills
	 */
	async getAllSkills(): Promise<JobSkill[]> {
		const response = await this.request<{ skills: JobSkill[] }>('/jobs/skills', {
			method: 'GET',
			cacheTTL: 300000 // Cache for 5 minutes
		})
		return response.skills
	}

	/**
	 * Updates the job for a party
	 * @param partyId The party's ID (UUID)
	 * @param jobId The job ID to set
	 */
	async updatePartyJob(partyId: string, jobId: string): Promise<void> {
		await this.request(`/parties/${partyId}/jobs`, {
			method: 'PUT',
			body: {
				job_id: jobId
			}
		})
		// Clear party cache to reflect the change
		this.clearCache(`/parties/${partyId}`)
	}

	/**
	 * Updates job skills for a party
	 * @param partyId The party's ID (UUID)
	 * @param skills Array of skill assignments with slot positions
	 */
	async updatePartyJobSkills(
		partyId: string,
		skills: Array<{ id: string; slot: number }>
	): Promise<void> {
		// Convert skills array to Rails expected format
		const party: Record<string, string | null> = {}

		// Initialize all slots with null
		for (let i = 1; i <= 4; i++) {
			party[`skill${i}_id`] = null
		}

		// Set the provided skills
		skills.forEach(skill => {
			// Rails expects skill1_id, skill2_id, skill3_id, skill4_id
			party[`skill${skill.slot + 1}_id`] = skill.id
		})

		await this.request(`/parties/${partyId}/job_skills`, {
			method: 'PUT',
			body: { party }
		})
		// Clear party cache to reflect the change
		this.clearCache(`/parties/${partyId}`)
	}

	/**
	 * Removes a job skill from a party
	 * @param partyId The party's ID (UUID)
	 * @param slot The skill slot to clear (0-3)
	 */
	async removePartyJobSkill(partyId: string, slot: number): Promise<void> {
		await this.request(`/parties/${partyId}/job_skills`, {
			method: 'DELETE',
			body: { slot }
		})
		// Clear party cache to reflect the change
		this.clearCache(`/parties/${partyId}`)
	}

	/**
	 * Clears the cache for job-related data
	 */
	clearJobCache() {
		this.clearCache('/jobs')
		this.clearCache('/search/job_skills')
	}
}

/**
 * Default job adapter instance
 */
export const jobAdapter = new JobAdapter(DEFAULT_ADAPTER_CONFIG)