#!/bin/bash
# Auto-dismiss GitHub notifications matching certain patterns
# - Nightlies, previews, checkpoints, rc, etc (by title pattern)
# - Releases with no release notes
# Exempts specified repos from auto-dismiss
#
# Dismiss = PATCH (read) + DELETE thread + DELETE subscription

set -e

DRY_RUN="${DRY_RUN:-false}"

# Repos exempt from auto-dismiss (always show these)
EXEMPT_REPOS="Mirrowel/LLM-API-Key-Proxy|b3nw/LLM-API-Key-Proxy|pedramamini/Maestro"

# Patterns to auto-dismiss (case-insensitive)
DISMISS_PATTERNS="nightly|preview|checkpoint|pre-release|canary|alpha|beta|snapshot|-rc\.|rc[0-9]"

# Get all unread notifications
NOTIFICATIONS=$(gh api /notifications 2>/dev/null || echo "[]")

if [ "$NOTIFICATIONS" = "[]" ] || [ -z "$NOTIFICATIONS" ]; then
    echo '{"dismissed":0,"checked":0}'
    exit 0
fi

DISMISSED=0
TOTAL=$(echo "$NOTIFICATIONS" | jq 'length')

echo "$NOTIFICATIONS" | jq -c '.[]' | while read -r notif; do
    ID=$(echo "$notif" | jq -r '.id')
    TITLE=$(echo "$notif" | jq -r '.subject.title')
    TYPE=$(echo "$notif" | jq -r '.subject.type')
    URL=$(echo "$notif" | jq -r '.subject.url')
    REPO=$(echo "$notif" | jq -r '.repository.full_name')
    
    # Skip exempt repos
    if echo "$REPO" | grep -qiE "$EXEMPT_REPOS"; then
        continue
    fi
    
    SHOULD_DISMISS=false
    REASON=""
    
    # Check title patterns
    if echo "$TITLE" | grep -qiE "$DISMISS_PATTERNS"; then
        SHOULD_DISMISS=true
        REASON="title_pattern"
    fi
    
    # Check releases with no notes
    if [ "$TYPE" = "Release" ] && [ "$SHOULD_DISMISS" = "false" ]; then
        RELEASE_BODY=$(gh api "$URL" --jq '.body // ""' 2>/dev/null || echo "")
        if [ -z "$RELEASE_BODY" ] || [ "$RELEASE_BODY" = "null" ]; then
            SHOULD_DISMISS=true
            REASON="empty_release_notes"
        fi
    fi
    
    if [ "$SHOULD_DISMISS" = "true" ]; then
        if [ "$DRY_RUN" = "true" ]; then
            echo "Would dismiss: [$REPO] $TITLE ($REASON)" >&2
        else
            # Full dismiss: mark read + delete thread + delete subscription
            gh api -X PATCH "/notifications/threads/$ID" 2>/dev/null || true
            gh api -X DELETE "/notifications/threads/$ID" 2>/dev/null || true
            gh api -X DELETE "/notifications/threads/$ID/subscription" 2>/dev/null || true
            echo "Dismissed: [$REPO] $TITLE ($REASON)" >&2
        fi
        DISMISSED=$((DISMISSED + 1))
    fi
done

echo "{\"dismissed\":$DISMISSED,\"checked\":$TOTAL}"