Algorithm of the Prayer Stacker

This is the logic flow for the algorithm to produce the list of randomized/personalized prayers and facts.

graph TD;
    A[Location grid ID]-->B;
    B[Builds Stacker - list of facts about the location]-->C;
    C[Creates Customized Prayers for Concepts]-->D;
    D[Shuffles Concepts Order]-->E;
    E[Deduplicates List] -->F;
    F[Reduces list to 8 elements] -->G;
    G[Adds Facts into Specific Positions]-->H;
    H[Clean and Return];

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 // get queries
        $stack = self::_stack_query( $grid_id );

        $stack['list'] = [];
        $lists = [];

        // PRAYER SHUFFLE
        PG_Stacker_Text_V2::_for_movement( $lists, $stack );
        PG_Stacker_Text_V2::_population_prayers( $lists, $stack );
        PG_Stacker_Text_V2::_language_prayers( $lists, $stack );
        PG_Stacker_Text_V2::_religion_prayers( $lists, $stack );

        PG_Stacker_Text_V2::_for_prayer_movement( $lists, $stack );
        PG_Stacker_Text_V2::_for_abundant_gospel_sowing( $lists, $stack );
        PG_Stacker_Text_V2::_for_new_churches( $lists, $stack );
        PG_Stacker_Text_V2::_for_obedience( $lists, $stack );
        PG_Stacker_Text_V2::_for_biblical_authority( $lists, $stack );
        PG_Stacker_Text_V2::_for_leadership( $lists, $stack );
        PG_Stacker_Text_V2::_for_house_churches( $lists, $stack );
        PG_Stacker_Text_V2::_for_multiplication( $lists, $stack );
        PG_Stacker_Text_V2::_for_urgency( $lists, $stack );
        PG_Stacker_Text_V2::_for_church_health( $lists, $stack );
//        PG_Stacker_Text_V2::_cities($lists, $stack );

        switch ( $stack['location']['favor'] ) {
            case 'non_christians':
                PG_Stacker_Text_V2::_non_christians( $lists, $stack );
                break;
            case 'christian_adherents':
                PG_Stacker_Text_V2::_christian_adherents( $lists, $stack );
                break;
            case 'believers':
                PG_Stacker_Text_V2::_believers( $lists, $stack );
                break;
            default:
                break;
        }
        foreach ( $lists as $content ) { // kill duplication
            $content['id'] = hash( 'sha256', serialize( $content ) . microtime() );
            $stack['list'][$content['id']] = [
                'type' => 'basic_block',
                'data' => $content
            ];
        }
        shuffle( $stack['list'] );
        $stack['list'] = array_slice( $stack['list'], 0, 8 );

        // FACT SHUFFLE
        self::_photos( $stack, 1 );
        self::_faith_status( $stack, 3 );
        self::_least_reached( $stack, 5 );
        self::_people_groups( $stack, 7 );
        self::_key_city( $stack, 9 );

        // APPEND TO END
//        self::_cities( $stack );

        // REDUCE STACK
        $reduced_stack = [];
        $reduced_stack['list'] = $stack['list'];
        $reduced_stack['location'] = $stack['location'];
        $stack = $reduced_stack;

        return $stack;