reminder-models.json

{
    "type": "reminder_registration",
    "form": { "code": "ANCR" },
    "auto_id": {
        "property_name": "patient_id",
        "format": "11111" 
    },
    "responses": {
        "valid": {
            "en": "Thank you {{chw_name}} for registering {{patient_name}}. Patient ID is {{patient_id}}. ANC visit is needed in {{weeks}} weeks.",
            "sw": "Asante(CHW name) kwa kusajili (name of mother:first,last ). ID namba yake ni (Patient ID).Klinik yake ni baada ya wiki {{weeks}}"
        },
        "invalid": {}
    },
    "schedule": "<schedule def...>",
    "constraints": [
        {
            // value constraint
            "type": "value",
            // expr should return true against each field value
            "fields": [
                { 
                    "prop": "lmp",
                    "expr": "typeof {{val}} !== 'undefined'",
                },
                { 
                    "prop": "name",
                    "expr": "typeof {{val}} !== 'undefined'"
                }
            ],
            "responses": {
                "invalid": {
                    "en": "Please include the patient name and LMP value.",
                    "sw": "Tafadhali andika jina la mgonjwa na uhakikishe umeweka LMP sahihi."
                }
            },
            // push to doc.errors
            "error": {
                "code": "required_field",
                "message": "No Patient Name or LMP entered.",
            }
        },
        {
            "type": "value",
            "fields": [
                {
                    "prop": "name",
                    "expr": "typeof {{val}} !== 'undefined'"
                }
            ],
            "responses": {
                "invalid": {
                    "en": "Please include Patient Name",
                    "sw": "Tafadhali andika jina la mgonjwa."
                }
            },
            "error": {
                // push to doc.errors
                "code": "required_field",
                "message": "No Patient Name entered." 
            }
        },
        {
            "type": "value",
            "fields": [
                {
                    "prop": "lmp",
                    "expr": "0 < {{val}} < 39", 
                }
            ],
            "responses": {
                "invalid": {
                    "en": "Invalid LMP; must be between 0-40 weeks.",
                    "sw": "Umekosea wiki za LMP. Lazima ziwe kati ya 0-40."
                }
            }
        },
        {
            "type": "value",
            "fields": [
                {   
                    "prop": "name",
                    "expr": "{{val}}.length <= 100", // ugh
                }
            ],
            "responses": [
                {
                    "en": "Name has exceeded maximum length. Please shorten name to under 100 characters.",
                    "sw": "Hilo jina ni refu mno. Tafadhali andika jina fupi ambalo haizidi vijineno mia moja."
                }
            ]
        },
        {
            // unique constraint
            "type": "unique",
            "within" "12 months",
            "fields": ['lmp', 'name'],
            "responses": [
                {
                    "en": "This patient is already registered on this number.{{patient_id}}.The CHEW will get back to you.",
                    "sw": "Huyu mama ameshasajiliwa.Namba yake ni {{patient_id}}.CHEW atawasiliana nawe."
                }
            ],
            "error": {
                "code": "duplicate_record",
                "message": "Duplicate record found; {{patient_id}} already registered within 12 months."
            }
        }
    ]
}

/* 
 * Rather than use expr we could have a bunch of preset functions we make
 * available like isDefined, isBetween(12,3) hasLengthBetween(1,40), etc?
 *
 * interesting libraries https://npmjs.org/package/validator
 */