# Task Usage Guide

The task module stores transient mission task metadata for active server or
mission lifecycle workflows. SQF still owns Arma-only runtime state such as
objects and participants.

The server addon at `arma/server/addons/task` also owns task execution:
creating BIS tasks, registering task entities, tracking participants, binding
task ownership, applying player/org rewards, and clearing task state when a
task completes.

Runtime dependencies:

- `forge_server_extension`
- `forge_server_common`
- `forge_server_actor`
- `forge_server_bank`
- `forge_server_org`
- `forge_client_notifications`

## Data Model

Catalog entries are flexible JSON objects. The service normalizes these fields
when a catalog entry is inserted or ownership changes:

- `taskId`
- `taskID`
- `accepted`
- `requesterUid`
- `orgID`

Ownership context:

```json
{
  "requesterUid": "76561198000000000",
  "orgId": "default"
}
```

## Commands

| Command | Arguments | Returns |
| --- | --- | --- |
| `task:reset` | none | `true`. |
| `task:catalog:active` | none | Active catalog entry array JSON. |
| `task:catalog:get` | `task_id` | Catalog entry JSON or `null`. |
| `task:catalog:upsert` | `task_id`, `entry_json` | Stored catalog entry JSON. |
| `task:catalog:delete` | `task_id` | `true`. |
| `task:ownership:bind` | `task_id`, `ownership_json` | Ownership mutation result JSON. |
| `task:ownership:release` | `task_id` | Ownership mutation result JSON. |
| `task:ownership:accept` | `task_id`, `ownership_json` | Ownership mutation result JSON. |
| `task:ownership:reward_context` | `task_id` | Reward context JSON. |
| `task:status:set` | `task_id`, `status` | `true`. |
| `task:status:get` | `task_id` | Status string JSON. |
| `task:status:clear` | `task_id` | `true`. |
| `task:defuse:increment` | `task_id` | New counter value JSON. |
| `task:defuse:get` | `task_id` | Counter value JSON. |
| `task:clear` | `task_id` | `true`. |

## Upsert a Catalog Entry

```sqf
private _entry = createHashMapFromArray [
    ["title", "Destroy Cache"],
    ["description", "Destroy the enemy supply cache."],
    ["reward", 1500]
];

private _result = "forge_server" callExtension ["task:catalog:upsert", [
    "task-cache-1",
    toJSON _entry
]];
```

## Mark a Task Active

```sqf
"forge_server" callExtension ["task:status:set", [
    "task-cache-1",
    "active"
]];

private _active = "forge_server" callExtension ["task:catalog:active", []];
```

Completed statuses `succeeded` and `failed` are also stored as completed status
fallbacks. Clearing status removes active and completed state.

## Accept a Task

```sqf
private _ownership = createHashMapFromArray [
    ["requesterUid", getPlayerUID player],
    ["orgId", "default"]
];

private _result = "forge_server" callExtension ["task:ownership:accept", [
    "task-cache-1",
    toJSON _ownership
]];
```

`task:ownership:accept` fails if the task is not active or another requester
already accepted it.

## Rewards

```sqf
private _result = "forge_server" callExtension ["task:ownership:reward_context", [
    "task-cache-1"
]];

private _context = fromJSON (_result select 0);
```

The reward context contains `requesterUid` and `orgId`.

## Server Task Flows

The task addon provides these server-owned task flows:

- `attack`
- `defend`
- `defuse`
- `delivery`
- `destroy`
- `hostage`
- `hvt`

Use `forge_server_task_fnc_startTask` when creating tasks from modules,
mission scripts, or generated mission-manager content. It registers task
entities, creates the BIS task, stores the catalog entry, then dispatches
through `forge_server_task_fnc_handler`.

```sqf
[
    "attack",
    "compound_attack_01",
    getPosATL leader1,
    "Attack: East Compound",
    "Eliminate all hostile forces.",
    createHashMapFromArray [["targets", [unit1, unit2, unit3]]],
    createHashMapFromArray [
        ["limitFail", 0],
        ["limitSuccess", 3],
        ["funds", 50000],
        ["ratingFail", -10],
        ["ratingSuccess", 20],
        ["timeLimit", 900]
    ],
    0,
    getPlayerUID player,
    "script"
] call forge_server_task_fnc_startTask;
```

Use `forge_server_task_fnc_handler` directly when the task entities are already
registered and you want reputation gating plus ownership binding:

```sqf
[
    "delivery",
    ["delivery_1", 1, 3, "delivery_zone", 250000, -75, 300, false, false, 900],
    250,
    getPlayerUID player
] call forge_server_task_fnc_handler;
```

Direct task function calls still work for mission-authored or server-owned
tasks, but they do not provide a requester UID. Ownership falls back to the
`default` org.

## Timer Semantics

Task time limits use `0` for no limit:

- attack `timeLimit`
- destroy `timeLimit`
- delivery `timeLimit`
- hostage `timeLimit`
- HVT `timeLimit`

Positive values are measured in seconds. Do not pass `-1` as a no-limit value;
the task runtime treats any non-zero task time limit as active.

Defuse IED timers are different. `iedTimer` must be greater than `0`, because
IEDs are expected to have an active countdown. The Eden defuse module defaults
to `300` seconds.

## Defuse Counter

```sqf
"forge_server" callExtension ["task:defuse:increment", ["task-cache-1"]];
private _count = "forge_server" callExtension ["task:defuse:get", ["task-cache-1"]];
```

## Error Handling

```sqf
private _payload = _result select 0;
if (_payload find "Error:" == 0) exitWith {
    systemChat format ["Task error: %1", _payload];
};
```