{% extends "base.html" %}

{# Info tooltip macro #}
{% macro info_tooltip(text, position='right') %}
<div class="relative inline-flex ml-1.5 group">
    <svg class="w-4 h-4 text-midnight-500 hover:text-ocean-400 cursor-help transition-colors" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
    </svg>
    <div class="absolute z-50 invisible group-hover:visible opacity-0 group-hover:opacity-100 transition-all duration-200 
                {% if position == 'left' %}right-full mr-2{% elif position == 'bottom' %}top-full mt-2 left-1/2 -translate-x-1/2{% else %}left-full ml-2{% endif %}
                w-64 p-3 text-xs text-midnight-200 bg-midnight-900 border border-midnight-700 rounded-lg shadow-xl shadow-black/30">
        <div class="font-normal leading-relaxed">{{ text }}</div>
    </div>
</div>
{% endmacro %}

{% block content %}
<div class="space-y-8">
    <!-- Header -->
    <div class="text-center space-y-4">
        <h1 class="text-3xl sm:text-4xl font-bold bg-gradient-to-r from-white via-ocean-200 to-ocean-400 bg-clip-text text-transparent">
            Compare Jobs
        </h1>
        <p class="text-midnight-400 max-w-2xl mx-auto text-sm sm:text-base px-4">
            Select two completed jobs to compare their diagnostic outputs side-by-side.
        </p>
    </div>

    {% if error %}
    <div class="glass-card rounded-xl p-4 border-l-4 border-crimson-500 bg-crimson-500/10">
        <div class="flex items-center gap-3">
            <svg class="w-5 h-5 text-crimson-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
            </svg>
            <span class="text-crimson-200">{{ error }}</span>
        </div>
    </div>
    {% endif %}

    {% if jobs|length < 2 %}
    <div class="glass-card glow-border rounded-2xl p-8 text-center">
        <svg class="w-16 h-16 mx-auto text-midnight-600 mb-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2" />
        </svg>
        <h3 class="text-xl font-semibold text-midnight-300 mb-2">Not Enough Jobs</h3>
        <p class="text-midnight-500 mb-6">You need at least 2 completed jobs to compare. Currently have {{ jobs|length }}.</p>
        <a href="/" class="inline-flex items-center gap-2 px-5 py-2.5 rounded-xl bg-ocean-500 text-white font-medium hover:bg-ocean-400 transition-colors">
            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4v16m8-8H4" />
            </svg>
            Run a Collection
        </a>
    </div>
    {% else %}
    <form action="/compare/result" method="GET" class="glass-card glow-border rounded-2xl p-8 space-y-8" x-data="{ jobA: '', jobB: '' }">
        <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
            <!-- Job A -->
            <div class="space-y-3">
                <label class="block text-sm font-semibold text-midnight-300 uppercase tracking-wider">
                    <span class="inline-flex items-center gap-2">
                        <span class="w-6 h-6 rounded-full bg-ocean-500/20 text-ocean-400 flex items-center justify-center text-xs font-bold">A</span>
                        Base Job (Before)
                        {{ info_tooltip("The baseline snapshot. Use an older job or a 'known good' state for comparison.") }}
                    </span>
                </label>
                <select name="job_a" required x-model="jobA"
                        class="w-full px-4 py-3 bg-midnight-800/50 border border-midnight-700/50 rounded-xl text-white focus:outline-none focus:border-ocean-500/50 focus:ring-1 focus:ring-ocean-500/50">
                    <option value="">Select a job...</option>
                    {% for job in jobs %}
                    <option value="{{ job.id }}">
                        {% if job.name %}{{ job.name }} — {% endif %}{{ job.id[:8] }}... (<span data-utc="{{ job.created_at.strftime('%Y-%m-%dT%H:%M:%S') }}">{{ job.created_at.strftime('%Y-%m-%d %H:%M') }}</span>)
                    </option>
                    {% endfor %}
                </select>
                <p class="text-xs text-midnight-500">The baseline for comparison</p>
            </div>

            <!-- Job B -->
            <div class="space-y-3">
                <label class="block text-sm font-semibold text-midnight-300 uppercase tracking-wider">
                    <span class="inline-flex items-center gap-2">
                        <span class="w-6 h-6 rounded-full bg-volt-500/20 text-volt-400 flex items-center justify-center text-xs font-bold">B</span>
                        Compare Job (After)
                        {{ info_tooltip("The newer snapshot. Use after a code deploy, config change, or during an incident to see what changed.") }}
                    </span>
                </label>
                <select name="job_b" required x-model="jobB"
                        class="w-full px-4 py-3 bg-midnight-800/50 border border-midnight-700/50 rounded-xl text-white focus:outline-none focus:border-ocean-500/50 focus:ring-1 focus:ring-ocean-500/50">
                    <option value="">Select a job...</option>
                    {% for job in jobs %}
                    <option value="{{ job.id }}">
                        {% if job.name %}{{ job.name }} — {% endif %}{{ job.id[:8] }}... (<span data-utc="{{ job.created_at.strftime('%Y-%m-%dT%H:%M:%S') }}">{{ job.created_at.strftime('%Y-%m-%d %H:%M') }}</span>)
                    </option>
                    {% endfor %}
                </select>
                <p class="text-xs text-midnight-500">The job to compare against baseline</p>
            </div>
        </div>

        <!-- Same Job Warning -->
        <div x-show="jobA && jobB && jobA === jobB" x-cloak
             class="flex items-center gap-3 p-4 rounded-xl bg-amber-500/10 border border-amber-500/30">
            <svg class="w-5 h-5 text-amber-400 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z" />
            </svg>
            <span class="text-amber-400 text-sm">Cannot compare a job with itself. Please select two different jobs.</span>
        </div>

        <!-- Compare Button -->
        <div class="flex justify-center pt-4">
            <button type="submit"
                    :disabled="!jobA || !jobB || jobA === jobB"
                    :class="(!jobA || !jobB || jobA === jobB) ? 'opacity-50 cursor-not-allowed' : 'hover:from-ocean-400 hover:to-ocean-500 hover:shadow-ocean-500/40'"
                    class="group relative px-8 py-4 rounded-xl font-semibold text-white bg-gradient-to-r from-ocean-500 to-ocean-600 shadow-lg shadow-ocean-500/25 transition-all duration-200">
                <span class="flex items-center gap-3">
                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
                    </svg>
                    Compare Jobs
                </span>
            </button>
        </div>
    </form>

    <!-- Info Box -->
    <div class="glass-card rounded-2xl p-6 space-y-4">
        <h3 class="text-sm font-semibold text-midnight-400 uppercase tracking-wider flex items-center">
            What Gets Compared
            {{ info_tooltip("Comparison includes automatic regression detection. 🔴 Critical and 🟡 Warning issues are flagged based on best-practice thresholds. Only hosts present in both jobs are compared.") }}
        </h3>
        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4 text-sm">
            <div class="bg-midnight-800/30 rounded-xl p-4 space-y-2">
                <div class="flex items-center gap-2 text-ocean-400 font-medium">
                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
                    </svg>
                    Global Status
                    {{ info_tooltip("Shows delta for key metrics: Threads_running, Slow_queries, row locks, temp tables. Red = increase (potential regression), Green = decrease (improvement).") }}
                </div>
                <p class="text-midnight-500 text-xs">Numeric counters like threads, locks, temp tables</p>
            </div>
            <div class="bg-midnight-800/30 rounded-xl p-4 space-y-2">
                <div class="flex items-center gap-2 text-volt-400 font-medium">
                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 10h16M4 14h16M4 18h16" />
                    </svg>
                    Processlist
                    {{ info_tooltip("Compares query counts, long-running queries (>10s), unique users. Good for spotting stuck queries or connection storms.") }}
                </div>
                <p class="text-midnight-500 text-xs">Summary stats: total queries, long-running, users</p>
            </div>
            <div class="bg-midnight-800/30 rounded-xl p-4 space-y-2">
                <div class="flex items-center gap-2 text-crimson-400 font-medium">
                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z" />
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
                    </svg>
                    Config Vars
                    {{ info_tooltip("Side-by-side config comparison. Changed values highlighted in yellow. Useful after config changes or when comparing prod vs staging.") }}
                </div>
                <p class="text-midnight-500 text-xs">Changed configuration values highlighted</p>
            </div>
            <div class="bg-midnight-800/30 rounded-xl p-4 space-y-2">
                <div class="flex items-center gap-2 text-purple-400 font-medium">
                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 7v10c0 2.21 3.582 4 8 4s8-1.79 8-4V7M4 7c0 2.21 3.582 4 8 4s8-1.79 8-4M4 7c0-2.21 3.582-4 8-4s8 1.79 8 4" />
                    </svg>
                    InnoDB Status
                    {{ info_tooltip("Unified diff of raw INNODB STATUS output. Shows + (added) and - (removed) lines. Best for spotting deadlock/lock changes, transaction patterns.") }}
                </div>
                <p class="text-midnight-500 text-xs">Side-by-side text diff of raw output</p>
            </div>
        </div>
    </div>
    {% endif %}
</div>
{% endblock %}