semillero-2-AI-ATS/app/(dashboard)/jobs/page.tsx

576 lines
23 KiB
TypeScript

"use client";
import React, { useState, useEffect } from "react";
interface Job {
id: string;
title: string;
requirements: {
text: string;
skills?: string[];
summary?: string;
};
created_at: string;
}
interface Score {
id: string;
candidate_id: string;
ai_score: number;
evaluation: {
summary: string;
classification: string;
suggestions: string;
riskLevel: string;
};
}
interface Candidate {
id: string;
name: string;
contact_info: {
email: string;
phone: string;
skills?: string[];
summary?: string;
};
similarity?: number;
scores?: Score[];
created_at: string;
}
export default function JobsPage() {
const [jobs, setJobs] = useState<Job[]>([]);
const [selectedJob, setSelectedJob] = useState<Job | null>(null);
const [matches, setMatches] = useState<Candidate[]>([]);
const [loadingJobs, setLoadingJobs] = useState(true);
const [loadingMatches, setLoadingMatches] = useState(false);
const [uploading, setUploading] = useState(false);
const [uploadError, setUploadError] = useState<string | null>(null);
const [uploadSuccess, setUploadSuccess] = useState<string | null>(null);
// Evaluation states
const [evaluatingIds, setEvaluatingIds] = useState<Record<string, boolean>>({});
// Form states
const [newTitle, setNewTitle] = useState("");
const [newRequirements, setNewRequirements] = useState("");
const [isSubmitting, setIsSubmitting] = useState(false);
const [formError, setFormError] = useState<string | null>(null);
// Fetch all jobs on mount
useEffect(() => {
let active = true;
fetch("/api/jobs")
.then((res) => {
if (!res.ok) throw new Error("Failed to fetch jobs");
return res.json();
})
.then((data) => {
if (active) {
setJobs(data);
setLoadingJobs(false);
if (data.length > 0) {
setSelectedJob(data[0]);
}
}
})
.catch((err) => {
console.error(err);
if (active) {
setLoadingJobs(false);
}
});
return () => {
active = false;
};
}, []);
// Fetch candidates/matches when selected job changes
useEffect(() => {
let active = true;
if (!selectedJob) {
Promise.resolve().then(() => {
if (active) setMatches([]);
});
return;
}
Promise.resolve().then(() => {
if (active) setLoadingMatches(true);
});
fetch(`/api/candidates?jobId=${selectedJob.id}`)
.then((res) => {
if (!res.ok) throw new Error("Failed to fetch candidate matches");
return res.json();
})
.then((data) => {
if (active) {
setMatches(data);
setLoadingMatches(false);
}
})
.catch((err) => {
console.error(err);
if (active) {
setLoadingMatches(false);
}
});
return () => {
active = false;
};
}, [selectedJob]);
// Create vacancy
const handleCreateJob = async (e: React.FormEvent) => {
e.preventDefault();
if (!newTitle.trim() || !newRequirements.trim()) {
setFormError("All fields are required");
return;
}
try {
setIsSubmitting(true);
setFormError(null);
const res = await fetch("/api/jobs", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ title: newTitle, requirements: newRequirements }),
});
if (!res.ok) {
const errData = await res.json();
throw new Error(errData.error || "Failed to create vacancy");
}
const newJob = await res.json();
setJobs((prev) => [newJob, ...prev]);
setSelectedJob(newJob);
setNewTitle("");
setNewRequirements("");
} catch (err: unknown) {
setFormError(err instanceof Error ? err.message : "Error creating job");
} finally {
setIsSubmitting(false);
}
};
// Upload PDF CV
const handleFileUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
const file = e.target.files?.[0];
if (!file || !selectedJob) return;
if (file.type !== "application/pdf") {
setUploadError("Please upload a PDF file");
return;
}
try {
setUploading(true);
setUploadError(null);
setUploadSuccess(null);
const formData = new FormData();
formData.append("file", file);
formData.append("jobId", selectedJob.id);
const res = await fetch("/candidates/api/parse-cv", {
method: "POST",
body: formData,
});
if (!res.ok) {
const errData = await res.json();
throw new Error(errData.error || "Failed to process CV");
}
const resData = await res.json();
setUploadSuccess(`CV for ${resData.candidateName || file.name} successfully parsed and linked!`);
// Refresh matches for current job
const matchesRes = await fetch(`/api/candidates?jobId=${selectedJob.id}`);
if (matchesRes.ok) {
const matchesData = await matchesRes.json();
setMatches(matchesData);
}
} catch (err: unknown) {
setUploadError(err instanceof Error ? err.message : "Error uploading CV");
} finally {
setUploading(false);
// Clear file input
e.target.value = "";
}
};
// Run deep AI evaluation via backend endpoint
const handleEvaluate = async (candidateId: string) => {
if (!selectedJob) return;
try {
setEvaluatingIds((prev) => ({ ...prev, [candidateId]: true }));
const res = await fetch("/candidates/api/evaluate", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ candidateId, jobId: selectedJob.id }),
});
if (!res.ok) {
const errData = await res.json();
throw new Error(errData.error || "Failed to trigger evaluation");
}
// Refresh matches for current job
const matchesRes = await fetch(`/api/candidates?jobId=${selectedJob.id}`);
if (matchesRes.ok) {
const matchesData = await matchesRes.json();
setMatches(matchesData);
}
} catch (err: unknown) {
alert(err instanceof Error ? err.message : "Error evaluating candidate");
} finally {
setEvaluatingIds((prev) => ({ ...prev, [candidateId]: false }));
}
};
return (
<div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
{/* Left Column: Create Form & Vacancies List */}
<div className="lg:col-span-1 flex flex-col gap-6">
{/* Create vacancy form */}
<div className="bg-white p-6 rounded-lg shadow-sm border border-slate-200">
<h2 className="text-lg font-bold text-slate-900 mb-4">Create Vacancy</h2>
<form onSubmit={handleCreateJob} className="flex flex-col gap-4">
<div>
<label className="block text-xs font-semibold text-slate-500 uppercase tracking-wider mb-1">
Job Title
</label>
<input
type="text"
value={newTitle}
onChange={(e) => setNewTitle(e.target.value)}
placeholder="e.g., Senior React Developer"
className="w-full px-3 py-2 border border-slate-200 rounded-md text-slate-900 bg-white placeholder:text-slate-500 text-sm focus:outline-none"
required
/>
</div>
<div>
<label className="block text-xs font-semibold text-slate-500 uppercase tracking-wider mb-1">
Requirements text
</label>
<textarea
value={newRequirements}
onChange={(e) => setNewRequirements(e.target.value)}
placeholder="Describe key candidate qualifications and tech stack..."
rows={4}
className="w-full px-3 py-2 border border-slate-200 rounded-md text-slate-900 bg-white placeholder:text-slate-500 text-sm focus:outline-none"
required
/>
</div>
{formError && (
<p className="text-xs text-red-600 font-semibold">{formError}</p>
)}
<button
type="submit"
disabled={isSubmitting}
className="w-full py-2 bg-blue-600 hover:bg-blue-700 text-white text-sm font-semibold rounded-md transition duration-200 disabled:opacity-50"
>
{isSubmitting ? "Creating..." : "Create Vacancy"}
</button>
</form>
</div>
{/* Vacancy list */}
<div className="bg-white p-6 rounded-lg shadow-sm border border-slate-200 flex-1">
<h2 className="text-lg font-bold text-slate-900 mb-4">Job Vacancies</h2>
{loadingJobs ? (
<p className="text-slate-500 text-sm">Loading jobs...</p>
) : jobs.length === 0 ? (
<p className="text-slate-500 text-sm">No vacancies created yet.</p>
) : (
<div className="flex flex-col gap-2">
{jobs.map((job) => (
<button
key={job.id}
onClick={() => {
setSelectedJob(job);
setUploadError(null);
setUploadSuccess(null);
}}
className={`w-full text-left p-3 rounded-md border text-sm transition duration-200 ${
selectedJob?.id === job.id
? "border-blue-600 bg-slate-50 font-semibold"
: "border-slate-200 hover:border-slate-300"
}`}
>
<div className="text-slate-900">{job.title}</div>
<div className="text-xs text-slate-500 mt-1">
Created: {new Date(job.created_at).toLocaleDateString()}
</div>
</button>
))}
</div>
)}
</div>
</div>
{/* Right Column: Selected Job Details & Candidate Match */}
<div className="lg:col-span-2">
{selectedJob ? (
<div className="bg-white p-6 rounded-lg shadow-sm border border-slate-200 flex flex-col gap-6">
{/* Header */}
<div>
<div className="text-xs font-semibold text-slate-500 uppercase tracking-wider">
Vacancy Details
</div>
<h1 className="text-2xl font-bold text-slate-900 mt-1">
{selectedJob.title}
</h1>
<p className="text-xs text-slate-500 mt-1">
ID: {selectedJob.id}
</p>
</div>
{/* Requirements & Extracted Job Skills */}
<div className="p-4 bg-slate-50 rounded-md border border-slate-200 flex flex-col gap-3">
<div>
<h3 className="text-sm font-semibold text-slate-900 mb-1">
Description
</h3>
<p className="text-slate-600 text-sm whitespace-pre-wrap leading-relaxed">
{selectedJob.requirements.text}
</p>
</div>
{selectedJob.requirements.skills && selectedJob.requirements.skills.length > 0 && (
<div>
<h3 className="text-xs font-semibold text-slate-500 uppercase tracking-wider mb-1.5">
Extracted Job Keywords / Required Skills
</h3>
<div className="flex flex-wrap gap-1.5">
{selectedJob.requirements.skills.map((skill) => (
<span
key={skill}
className="px-2 py-0.5 bg-white border border-slate-200 text-slate-700 text-xs rounded-md font-medium"
>
{skill}
</span>
))}
</div>
</div>
)}
</div>
{/* PDF Uploader */}
<div className="border border-dashed border-slate-200 rounded-lg p-6 flex flex-col items-center justify-center text-center">
<h3 className="text-sm font-semibold text-slate-900 mb-1">
Upload Candidate CV for this Vacancy (PDF)
</h3>
<p className="text-xs text-slate-500 mb-4 max-w-md">
Uploading a candidate CV parses the text and extracts their skills/profile in a vacuum. It associates them with this job, enabling you to check skills overlap before running the deep AI score model.
</p>
<label className="relative cursor-pointer bg-blue-600 hover:bg-blue-700 text-white font-semibold py-2 px-4 rounded-md text-sm transition duration-200">
{uploading ? "Processing CV..." : "Choose CV File"}
<input
type="file"
accept=".pdf"
onChange={handleFileUpload}
disabled={uploading}
className="hidden"
/>
</label>
{uploadError && (
<p className="text-xs text-red-600 mt-3 font-semibold">
{uploadError}
</p>
)}
{uploadSuccess && (
<p className="text-xs text-green-600 mt-3 font-semibold">
{uploadSuccess}
</p>
)}
</div>
{/* Matches List */}
<div>
<h3 className="text-base font-bold text-slate-900 mb-3">
Candidates & Compatibility Index
</h3>
{loadingMatches ? (
<p className="text-slate-500 text-sm">Finding matches...</p>
) : matches.length === 0 ? (
<p className="text-slate-500 text-sm">
No candidates have been uploaded or matched yet.
</p>
) : (
<div className="flex flex-col gap-4">
{matches.map((match) => {
const similarityPct = match.similarity
? Math.round(match.similarity * 100)
: null;
const latestScore = match.scores?.[0];
// Programmatic skills matching logic
const jobSkills = selectedJob.requirements.skills || [];
const candidateSkills = match.contact_info.skills || [];
const skillsMatch = (candSkill: string, jobSkill: string): boolean => {
const c = candSkill.toLowerCase().trim();
const j = jobSkill.toLowerCase().trim();
if (c === j) return true;
if (c.includes(j) || j.includes(c)) return true;
const cWords = c.split(/[\s,./()&+-]+/).filter(w => w.length > 2);
const jWords = j.split(/[\s,./()&+-]+/).filter(w => w.length > 2);
const stopWords = ['and', 'for', 'with', 'the', 'management', 'administration', 'development', 'developer', 'engineer', 'system', 'systems', 'integration', 'operations', 'knowledge', 'experience', 'expert', 'proficiency', 'proficient'];
const sharedWords = cWords.filter(w => jWords.includes(w) && !stopWords.includes(w));
return sharedWords.length > 0;
};
const matchedSkills = jobSkills.filter(js =>
candidateSkills.some(cs => skillsMatch(cs, js))
);
const missingSkills = jobSkills.filter(js =>
!candidateSkills.some(cs => skillsMatch(cs, js))
);
const overlapCount = matchedSkills.length;
const totalRequired = jobSkills.length;
const matchPct = totalRequired > 0 ? Math.round((overlapCount / totalRequired) * 100) : 0;
const isPotentialMatch = matchPct >= 75;
return (
<div
key={match.id}
className="p-5 rounded-lg border border-slate-200 bg-white flex flex-col gap-4 shadow-sm hover:border-slate-300 transition duration-200"
>
{/* Upper info panel */}
<div className="flex flex-col md:flex-row md:items-start justify-between gap-4">
<div className="flex flex-col gap-1">
<div className="text-slate-900 font-bold text-base">
{match.name}
</div>
<div className="text-xs text-slate-500">
Email: <span className="text-slate-700 font-medium mr-3">{match.contact_info.email}</span>
Phone: <span className="text-slate-700 font-medium">{match.contact_info.phone}</span>
</div>
</div>
<div className="flex flex-wrap items-center gap-2">
{/* Pre-selection status badge */}
<span
className={`px-2.5 py-1 text-xs font-semibold rounded-md border ${
isPotentialMatch
? "bg-green-50 text-green-700 border-green-200"
: "bg-slate-50 text-slate-500 border-slate-200"
}`}
>
{isPotentialMatch
? `Potential Match (${matchPct}% overlap)`
: `Skill Mismatch (${matchPct}% overlap)`}
</span>
{/* Semantic embedding similarity badge */}
{similarityPct !== null && (
<span className="px-2.5 py-1 text-xs font-semibold rounded-md border bg-blue-50 text-blue-700 border-blue-200">
Semantic: {similarityPct}%
</span>
)}
</div>
</div>
{/* Skills overlap details */}
<div className="bg-slate-50 p-3 rounded-md border border-slate-100 flex flex-col gap-2">
<div className="text-xs font-semibold text-slate-500 uppercase tracking-wider">
Skills Check: {overlapCount} of {totalRequired} matching
</div>
<div className="flex flex-wrap gap-1.5">
{/* Display matched skills in green */}
{matchedSkills.map(skill => (
<span
key={skill}
className="px-2 py-0.5 bg-green-100 text-green-800 border border-green-200 text-xs rounded-md font-medium"
>
{skill}
</span>
))}
{/* Display missing skills in light red/gray dashed */}
{missingSkills.map(skill => (
<span
key={skill}
className="px-2 py-0.5 bg-white border border-slate-200 border-dashed text-slate-400 text-xs rounded-md"
>
{skill} (missing)
</span>
))}
{/* Fallback if no skills are loaded */}
{jobSkills.length === 0 && (
<span className="text-xs text-slate-500 italic">
No required skills extracted for this job yet.
</span>
)}
</div>
</div>
{/* Bottom evaluation / action panel */}
<div className="flex flex-col sm:flex-row sm:items-center justify-between gap-4 pt-3 border-t border-slate-100">
<div>
{latestScore ? (
<div className="flex flex-col gap-1">
<div className="text-xs text-slate-500">
AI ASSESSMENT RESULT
</div>
<div className="text-sm text-slate-700 font-medium">
Decision: <span className="font-bold text-slate-900">{latestScore.evaluation.classification}</span>
<span className="mx-2 font-normal text-slate-300">|</span>
Score: <span className="font-bold text-blue-600 text-base">{latestScore.ai_score} / 100</span>
</div>
<div className="text-xs text-slate-500 leading-normal max-w-lg mt-1">
{latestScore.evaluation.summary}
</div>
</div>
) : (
<div className="text-xs text-slate-500 italic">
Ready for deep assessment. Only potential matches recommended for LLM budget optimization.
</div>
)}
</div>
<div className="self-end sm:self-center">
<button
onClick={() => handleEvaluate(match.id)}
disabled={evaluatingIds[match.id]}
className="px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white text-xs font-semibold rounded-md transition duration-200 disabled:opacity-50 shadow-sm"
>
{evaluatingIds[match.id]
? "Evaluating (n8n)..."
: latestScore
? "Re-run Deep AI"
: "Run Deep AI Evaluation"}
</button>
</div>
</div>
</div>
);
})}
</div>
)}
</div>
</div>
) : (
<div className="bg-white p-12 rounded-lg shadow-sm border border-slate-200 flex flex-col items-center justify-center text-center">
<p className="text-slate-600 font-semibold mb-2">
Select or create a job vacancy to get started
</p>
<p className="text-slate-500 text-xs max-w-sm">
Use the sidebar panel to choose a vacancy or fill in the form to establish a new open position.
</p>
</div>
)}
</div>
</div>
);
}