import { xml2js } from '@tak-ps/xml-js';
import CoT, { CoTParser } from '@tak-ps/node-cot';
import { Type, Static } from '@sinclair/typebox';
import Err from '@openaddresses/batch-error';
import { Readable } from 'node:stream'
import { TAKItem, TAKList } from './types.js';
import { MissionLog } from './mission-log.js';
import type { Feature } from '@tak-ps/node-cot';
import Commands, { CommandOutputFormat, type ParsedArgs } from '../commands.js';

export enum MissionSubscriberRole {
    MISSION_OWNER = 'MISSION_OWNER',
    MISSION_SUBSCRIBER = 'MISSION_SUBSCRIBER',
    MISSION_READONLY_SUBSCRIBER = 'MISSION_READONLY_SUBSCRIBER'
}

// These properties are optional as a REMOVE_CONTENT will
// only have "hash"
export const MissionContent = Type.Object({
    keywords: Type.Optional(Type.Array(Type.String())),
    name: Type.Optional(Type.String()),
    hash: Type.String(),
    submissionTime: Type.Optional(Type.String()),
    uid: Type.Optional(Type.String()),
    size: Type.Optional(Type.Integer()),
    creatorUid: Type.Optional(Type.String()),
    mimeType: Type.Optional(Type.String()),
    submitter: Type.Optional(Type.String()),
    expiration: Type.Optional(Type.Integer())
});

export const MissionChange = Type.Object({
    isFederatedChange: Type.Boolean(),
    type: Type.String(),
    missionName: Type.String(),
    missionGuid: Type.Optional(Type.String()),
    timestamp: Type.String(),
    serverTime: Type.String(),
    creatorUid: Type.Optional(Type.String()),
    contentUid: Type.Optional(Type.String()),
    details: Type.Optional(Type.Object({
        type: Type.String(),
        callsign: Type.Optional(Type.String()),
        title: Type.Optional(Type.String()),
        iconsetPath: Type.Optional(Type.String()),
        color: Type.Optional(Type.String()),
        attachments: Type.Optional(Type.Array(Type.String())),
        name: Type.Optional(Type.String()),
        category: Type.Optional(Type.String()),
        location: Type.Optional(Type.Object({
            lat: Type.Number(),
            lon: Type.Number()
        }))
    })),
    contentResource: Type.Optional(MissionContent)
});

export const Mission = Type.Object({
    name: Type.String(),
    description: Type.String(),
    chatRoom: Type.Optional(Type.String()),
    baseLayer: Type.Optional(Type.String()),
    bbox: Type.Optional(Type.String()),
    path: Type.Optional(Type.String()),
    classification: Type.Optional(Type.String()),
    tool: Type.String(),
    keywords: Type.Array(Type.String()),
    creatorUid: Type.Optional(Type.String()),
    createTime: Type.String(),
    externalData: Type.Array(Type.Unknown()),
    feeds: Type.Array(Type.Unknown()),
    mapLayers: Type.Array(Type.Unknown()),
    ownerRole: Type.Optional(Type.Object({
        permissions: Type.Array(Type.String()),
        type: Type.Enum(MissionSubscriberRole)
    })),
    inviteOnly: Type.Boolean(),
    expiration: Type.Number(),
    guid: Type.String(),
    uids: Type.Array(Type.Unknown()),
    logs: Type.Optional(Type.Array(MissionLog)),                // Only present if ?logs=true
    contents: Type.Array(Type.Object({
        timestamp: Type.String(),
        creatorUid: Type.Optional(Type.String()),
        data: MissionContent
    })),
    passwordProtected: Type.Boolean(),
    token: Type.Optional(Type.String()),                        // Only present when mission created
    groups: Type.Optional(Type.Union([Type.String(), Type.Array(Type.String())])),           // Only present on Mission.get()
    missionChanges: Type.Optional(Type.Array(MissionChange))   // Only present on Mission.get()
});

export const MissionRole = Type.Object({
    permissions: Type.Array(Type.String()),
    hibernateLazyInitializer: Type.Optional(Type.Any()),
    type: Type.Enum(MissionSubscriberRole)
})

export const MissionSubscriber = Type.Object({
    token: Type.Optional(Type.String()),
    clientUid: Type.String(),
    username: Type.String(),
    createTime: Type.String(),
    role: MissionRole
})

export const MissionOptions = Type.Object({
    token: Type.Optional(Type.String())
});

export const AttachContentsInput = Type.Object({
    hashes: Type.Optional(Type.Array(Type.String())),
    uids: Type.Optional(Type.Array(Type.String())),
});

export const DetachContentsInput = Type.Object({
    hash: Type.Optional(Type.String()),
    uid: Type.Optional(Type.String())
});

export const MissionChangesInput = Type.Object({
    secago: Type.Optional(Type.Integer()),
    start: Type.Optional(Type.String()),
    end: Type.Optional(Type.String()),
    squashed: Type.Optional(Type.Boolean())
})

export const SubscribedInput = Type.Object({
    uid: Type.String(),
})

export const UnsubscribeInput = Type.Object({
    uid: Type.String(),
    disconnectOnly: Type.Optional(Type.Boolean())
})

export const SubscriptionInput = Type.Object({
    uid: Type.String(),
});

export const SubscribeInput = Type.Object({
    uid: Type.String(),
    password: Type.Optional(Type.String()),
    secago: Type.Optional(Type.Integer()),
    start: Type.Optional(Type.String()),
    end: Type.Optional(Type.String())
})

export const MissionDeleteInput = Type.Object({
    creatorUid: Type.Optional(Type.String()),
    deepDelete: Type.Optional(Type.Boolean())
})

export const GetInput = Type.Object({
    password: Type.Optional(Type.String()),
    changes: Type.Optional(Type.Boolean()),
    logs: Type.Optional(Type.Boolean()),
    secago: Type.Optional(Type.Integer()),
    start: Type.Optional(Type.String()),
    end: Type.Optional(Type.String())
});

export const SetRoleInput = Type.Object({
    clientUid: Type.String(),
    username: Type.String(),
    role: MissionRole
});

export const MissionListInput = Type.Object({
    passwordProtected: Type.Optional(Type.Boolean()),
    defaultRole: Type.Optional(Type.Boolean()),
    tool: Type.Optional(Type.String())
});

export const MissionCreateInput = Type.Object({
    name: Type.String(),
    group: Type.Optional(Type.Union([Type.Array(Type.String()), Type.String()])),
    keywords: Type.Optional(Type.Array(Type.String())),
    creatorUid: Type.String(),
    description: Type.Optional(Type.String({ default: '' })),
    chatRoom: Type.Optional(Type.String()),
    baseLayer: Type.Optional(Type.String()),
    bbox: Type.Optional(Type.String()),
    boundingPolygon: Type.Optional(Type.Array(Type.String())),
    path: Type.Optional(Type.String()),
    classification: Type.Optional(Type.String()),
    tool: Type.Optional(Type.String({ default: 'public' })),
    password: Type.Optional(Type.String()),
    defaultRole: Type.Optional(Type.String()),
    expiration: Type.Optional(Type.Integer()),
    inviteOnly: Type.Optional(Type.Boolean({ default: false })),
    allowDupe: Type.Optional(Type.Boolean({ default: false })),
});

export const MissionUpdateInput = Type.Object({
    creatorUid: Type.Optional(Type.String()),
    description: Type.Optional(Type.String()),
    keywords: Type.Optional(Type.Array(Type.String())),
    chatRoom: Type.Optional(Type.String()),
    baseLayer: Type.Optional(Type.String()),
    group: Type.Optional(Type.Union([Type.Array(Type.String()), Type.String()])),
    allowGroupChange: Type.Optional(Type.Boolean()),
    bbox: Type.Optional(Type.String()),
    path: Type.Optional(Type.String()),
    classification: Type.Optional(Type.String()),
    tool: Type.Optional(Type.String()),
    expiration: Type.Optional(Type.Integer()),
    inviteOnly: Type.Optional(Type.Boolean()),
});

export const GUIDMatch = new RegExp(/^[{]?[0-9a-fA-F]{8}-([0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}[}]?$/);

export const TAKList_Mission = TAKList(Mission);
export const TAKList_MissionInvites = TAKList(Type.String());
export const TAKList_MissionChange = TAKList(MissionChange);
export const TAKList_MissionSubscriber = TAKList(MissionSubscriber);
export const TAKItem_MissionSubscriber = TAKItem(MissionSubscriber);

/**
 * @class
 */
export default class MissionCommands extends Commands {
    schema = {
        list: {
            description: 'List Missions',
            params: Type.Object({}),
            query: Type.Object({}),
            formats: [ CommandOutputFormat.JSON ]
        },
    }

    async cli(args: ParsedArgs): Promise<object | string> {
        if (args._[3] === 'list') {
            const list = await this.list({});

            if (args.format === 'json') {
                return list;
            } else {
                return list.data.map((mission) => {
                    return `${mission.name} (${mission.guid}) - ${mission.description}`;
                }).join('\n');
            }
        } else {
            throw new Error('Unsupported Subcommand');
        }
    }

    #isGUID(id: string): boolean {
        return GUIDMatch.test(id)
    }

    #encodeName(name: string): string {
        return encodeURIComponent(name.trim())
    }

    /*
     * The Mission type is currently cast from an unknown to a Mission
     * from the fetch call from the server. There are a few standardizations
     * we make for better usability.
     */
    #stdMission(mission: Static<typeof Mission>): Static<typeof Mission> {
        if (mission.description === undefined) mission.description = '';

        return mission;
    }

    #headers(opts?: Static<typeof MissionOptions>): object {
        if (opts && opts.token) {
            return {
                MissionAuthorization: `Bearer ${opts.token}`
            }
        } else {
            return {};
        }
    }

    /**
     * Return Zip archive of Mission Sync
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionArchive_1 TAK Server Docs}.
     */
    async getArchive(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Readable> {
        const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}/archive`, this.api.url);

        const res = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        }, true);

        return res.body;
    }

    /**
     * Return Mission Sync changes in a given time range
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionChanges TAK Server Docs}.
     */
    async changes(
        name: string,
        query: Static<typeof MissionChangesInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof TAKList_MissionChange>> {
        if (this.#isGUID(name)) name = (await this.getGuid(name, {}, opts)).name;

        const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}/changes`, this.api.url);

        let q: keyof Static<typeof MissionChangesInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        const changes = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });

        return changes;
    }

    /**
     * Return all current features in the Data Sync as CoT GeoJSON Features
     */
    async latestFeats(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof Feature.Feature>[]> {
        const feats: Static<typeof Feature.Feature>[] = [];

        const res: any = xml2js(await this.latestCots(name, opts), { compact: true });

        if (!Object.keys(res.events).length) return feats;
        if (!res.events.event || (Array.isArray(res.events.event) && !res.events.event.length)) return feats;

        for (const event of Array.isArray(res.events.event) ? res.events.event : [res.events.event] ) {
            feats.push(await CoTParser.to_geojson(new CoT({ event })));
        }

        return feats;
    }

    /**
     * Return all current features in the Data Sync as CoT GeoJSON Features
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getLatestMissionCotEvents TAK Server Docs}.
     */
    async latestCots(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<string> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/cot`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/cot`, this.api.url);

        return await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts)
        });
    }

    /**
     * Return users associated with this mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionContacts TAK Server Docs}.
     */
    async contacts(
        name: string,
        opts?: Static<typeof MissionOptions>
    ) {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/contacts`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/contacts`, this.api.url);

        return await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts)
        });
    }

    /**
     * Return children associated with this mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getChildren TAK Server Docs}.
     */
    async children(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof TAKList_Mission>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/children`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/children`, this.api.url);

        return await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts)
        });
    }

    /**
     * Set the parent mission for a child mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/setParent TAK Server Docs}.
     */
    async setParent(
        child: string,
        parent: string,
        opts?: Static<typeof MissionOptions>
    ) {
        if (this.#isGUID(child) || this.#isGUID(parent)) {
            const childGuid = this.#isGUID(child) ? child : (await this.get(child, {}, opts)).guid;
            const parentGuid = this.#isGUID(parent) ? parent : (await this.get(parent, {}, opts)).guid;

            const url = new URL(`/Marti/api/missions/guid/${encodeURIComponent(childGuid)}/parent/guid/${encodeURIComponent(parentGuid)}`, this.api.url);

            return await this.api.fetch(url, {
                method: 'PUT',
                headers: this.#headers(opts)
            });
        }

        const url = new URL(`/Marti/api/missions/${this.#encodeName(child)}/parent/${this.#encodeName(parent)}`, this.api.url);

        return await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts)
        });
    }

    /**
     * Remove a file from the mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/removeMissionContent TAK Server Docs}.
     */
    async detachContents(
        name: string,
        body: Static<typeof DetachContentsInput>,
        opts?: Static<typeof MissionOptions>
    ) {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/contents`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/contents`, this.api.url);

        if (body.hash) url.searchParams.append('hash', body.hash);
        if (body.uid) url.searchParams.append('uid', body.uid);

        return await this.api.fetch(url, {
            method: 'DELETE',
            headers: this.#headers(opts),
        });
    }

    /**
     * Attach a file resource by hash from the TAK Server file manager
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/addMissionContent TAK Server Docs}.
     */
    async attachContents(
        name: string,
        body: Static<typeof AttachContentsInput>,
        opts?: Static<typeof MissionOptions>
    ) {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/contents`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/contents`, this.api.url);

        return await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts),
            body
        });
    }

    /**
     * Upload a Mission Package
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/addMissionPackage TAK Server Docs}.
     */
    async upload(
        name: string,
        creatorUid: string,
        body: Readable,
        opts?: Static<typeof MissionOptions>
    ) {
        if (this.#isGUID(name)) name = (await this.getGuid(name, {}, opts)).name;

        const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}/contents/missionpackage`, this.api.url);
        url.searchParams.append('creatorUid', creatorUid);

        return await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts),
            body
        });
    }

    /**
     * Return UIDs associated with any subscribed users
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionSubscriptions TAK Server Docs}.
     */
    async subscriptions(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof TAKItem_MissionSubscriber>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/subscriptions`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/subscriptions`, this.api.url);

        return await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });
    }

    /**
     * Return permissions associated with any subscribed users
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionSubscriptionRoles TAK Server Docs}.
     */
    async subscriptionRoles(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof TAKList_MissionSubscriber>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/subscriptions/roles`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/subscriptions/roles`, this.api.url);

        return await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });
    }

    /**
     * Return Role associated with a given mission if subscribed
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/setMissionRole TAK Server Docs}.
     */
    async setRole(
        name: string,
        query: Static<typeof SetRoleInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof MissionRole>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/role`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/role`, this.api.url);

        let q: keyof Static<typeof SetRoleInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        const res = await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts),
        });

        return res.data;
    }

    /**
     * Return Role associated with a given mission if subscribed
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionRoleFromToken TAK Server Docs}.
     */
    async role(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof MissionRole>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/role`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/role`, this.api.url);

        const res = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });

        return res.data;
    }

    /**
     * Return subscription associated with a given mission if subscribed
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getSubscriptionForUser TAK Server Docs}.
     */
    async subscription(
        name: string,
        query: Static<typeof SubscriptionInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof MissionSubscriber>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/subscription`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/subscription`, this.api.url);

        let q: keyof Static<typeof SubscriptionInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        const res = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });

        return res.data;
    }

    /**
     * Subscribe to a mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/createMissionSubscription TAK Server Docs}.
     */
    async subscribe(
        name: string,
        query: Static<typeof SubscribeInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof TAKItem_MissionSubscriber>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/subscription`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/subscription`, this.api.url);

        let q: keyof Static<typeof SubscribeInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        return await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts),
        });
    }

    /**
     * Unsubscribe from a mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/deleteMissionSubscription TAK Server Docs}.
     */
    async unsubscribe(
        name: string,
        query: Static<typeof UnsubscribeInput>,
        opts?: Static<typeof MissionOptions>
    ) {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}/subscription`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}/subscription`, this.api.url);

        let q: keyof Static<typeof UnsubscribeInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        return await this.api.fetch(url, {
            method: 'DELETE',
            headers: this.#headers(opts),
        });
    }

    /**
     * List missions in currently active channels
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getAllMissions_1 TAK Server Docs}.
     */
    async list(query: Static<typeof MissionListInput>): Promise<Static<typeof TAKList_Mission>> {
        const url = new URL('/Marti/api/missions', this.api.url);

        let q: keyof Static<typeof MissionListInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        return await this.api.fetch(url, {
            method: 'GET'
        });
    }

    /**
     * Get mission by its GUID
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMissionByGuid TAK Server Docs}.
     */
    async getGuid(
        guid: string,
        query: Static<typeof GetInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof Mission>> {
        const url = new URL(`/Marti/api/missions/guid/${encodeURIComponent(guid)}`, this.api.url);

        let q: keyof Static<typeof GetInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        const missions: Static<typeof TAKList_Mission> = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });

        if (!missions.data.length) throw new Err(404, null, `No Mission for GUID: ${guid}`);

        return this.#stdMission(missions.data[0]);
    }

    /**
     * Check if you have access to a given mission
     */
    async access(
        name: string,
        opts?: Static<typeof MissionOptions>
    ): Promise<boolean> {
        try {
            const url = this.#isGUID(name)
                ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}`, this.api.url)
                : new URL(`/Marti/api/missions/${this.#encodeName(name)}`, this.api.url);

            const missions: Static<typeof TAKList_Mission> = await this.api.fetch(url, {
                method: 'GET',
                headers: this.#headers(opts),
            });

            if (!missions.data.length) return false;
            return true;
        } catch (err) {
            console.error(err);
            return false;
        }
    }

    /**
     * Update Mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/createMissionAllowDupe TAK Server Docs}.
     */
    async update(
        name: string,
        body: Static<typeof MissionUpdateInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof Mission>> {
        let mission = await this.get(name, {}, opts);

        const url = new URL(`/Marti/api/missions/${encodeURIComponent(mission.name)}`, this.api.url)

        const bodyParams: Static<typeof MissionUpdateInput> = {
            group: body.group ?? mission.groups,
            creatorUid: body.creatorUid ?? mission.creatorUid,
            description: body.description ?? mission.description,
            chatRoom: body.chatRoom ?? mission.chatRoom,
            baseLayer: body.baseLayer ?? mission.baseLayer,
            bbox: body.bbox ?? mission.bbox,
            path: body.path ?? mission.path,
            classification: body.classification ?? mission.classification,
            tool: body.tool ?? mission.tool,
            expiration: body.expiration ?? mission.expiration,
            inviteOnly: body.inviteOnly ?? mission.inviteOnly
        };

        // Group changes by non-admin Mission Owners require `allowGroupChange=true`
        // on the request, or TAK Server will respond with 403.
        // See MissionApi.java in takserver-core for the server-side check.
        if (body.group !== undefined && body.allowGroupChange === undefined) {
            body.allowGroupChange = true;
        }

        let q: keyof Static<typeof MissionUpdateInput>;
        for (q in bodyParams) {
            const value = bodyParams[q];

            if (value === undefined) continue;

            if (q === 'group' && Array.isArray(value)) {
                // The TAK Server `group` query parameter is repeatable
                // (eg `?group=a&group=b`).
                for (const g of value) {
                    url.searchParams.append('group', String(g));
                }
            } else {
                url.searchParams.append(q, String(value));
            }
        }

        if (body.allowGroupChange !== undefined) {
            url.searchParams.append('allowGroupChange', String(body.allowGroupChange));
        }

        url.searchParams.append('allowDupe', 'false');

        const missions = await this.api.fetch(url, {
            method: 'POST',
            headers: this.#headers(opts),
        });

        if (!missions.data.length) throw new Error('Create Mission didn\'t return a mission or an error');

        mission = missions.data[0];

        if (body.keywords !== undefined) {
            mission = await this.setKeywords(mission.name, body.keywords, opts);
        }

        return this.#stdMission(mission);
    }

    /**
     * Get mission by its Name
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/getMission TAK Server Docs}.
     */
    async get(
        name: string,
        query: Static<typeof GetInput>,
        opts?: Static<typeof MissionOptions>
    ): Promise<Static<typeof Mission>> {
        const url = this.#isGUID(name)
            ? new URL(`/Marti/api/missions/guid/${encodeURIComponent(name)}`, this.api.url)
            : new URL(`/Marti/api/missions/${this.#encodeName(name)}`, this.api.url);

        let q: keyof Static<typeof GetInput>;
        for (q in query) {
            if (query[q] !== undefined) {
                url.searchParams.append(q, String(query[q]));
            }
        }

        const missions: Static<typeof TAKList_Mission> = await this.api.fetch(url, {
            method: 'GET',
            headers: this.#headers(opts),
        });

        if (!missions.data.length) throw new Err(404, null, `No Mission for Name: ${name}`);

        return this.#stdMission(missions.data[0]);
    }

    /**
     * Create a new mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/createMission TAK Server Docs}.
     */
    async create(
        body: Static<typeof MissionCreateInput>
    ): Promise<Static<typeof Mission>> {
        const url = new URL(`/Marti/api/missions/${this.#encodeName(body.name)}`, this.api.url);

        // I want to keep this 1:1 with the TAK Server Source Code
        // eslint-disable-next-line no-useless-escape
        if (!body.name.match(/^[\p{L}\p{N}\w\d\s\.\(\)!=@#$&^*_\-\+\[\]\{\}:,\.\/\|\\]*$/u)) {
            throw new Err(400, null, 'Mission Name contains an invalid Character');
        } else if (body.name.length === 0) {
            throw new Err(400, null, 'Mission Name must have a length > 0');
        } else if (body.name.length > 1024) {
            throw new Err(400, null, 'Mission Name cannot exceed 1024 characters');
        } else if (body.name.includes('/')) {
            throw new Err(400, null, 'Mission Name cannot contain forward slashes');
        }

        if (body.description === undefined) body.description = '';

        if (body.group && Array.isArray(body.group)) body.group = body.group.join(',');

        let q: keyof Static<typeof MissionCreateInput>;
        for (q in body) {
            if (body[q] !== undefined && !['name', 'keywords'].includes(q)) {
                url.searchParams.append(q, String(body[q]));
            }
        }

        const missions = await this.api.fetch(url, {
            method: 'POST'
        });

        if (!missions.data.length) throw new Error('Create Mission didn\'t return a mission or an error');

        let mission = missions.data[0];

        if (body.keywords !== undefined) {
            mission = await this.setKeywords(mission.name, body.keywords, {
                token: mission.token
            });
        }

        return this.#stdMission(mission);
    }

    /**
     * Replace the full list of keywords on a Mission.
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/setKeywords TAK Server Docs}.
     */
    async setKeywords(
        name: string,
        keywords: string[],
        opts?: Static<typeof MissionOptions>,
        creatorUid?: string
    ): Promise<Static<typeof Mission>> {
        const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}/keywords`, this.api.url);

        if (creatorUid !== undefined) {
            url.searchParams.append('creatorUid', creatorUid);
        }

        const missions = await this.api.fetch(url, {
            method: 'PUT',
            headers: this.#headers(opts),
            body: keywords
        });

        if (!missions.data.length) throw new Error('Set Mission Keywords didn\'t return a mission or an error');

        const mission = missions.data[0];

        return this.#stdMission(mission);
    }

    /**
     * Remove a single keyword from a Mission.
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/removeKeyword TAK Server Docs}.
     */
    async deleteKeyword(
        name: string,
        keyword: string,
        opts?: Static<typeof MissionOptions>,
        creatorUid?: string
    ): Promise<Static<typeof Mission>> {
        const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}/keywords/${encodeURIComponent(keyword)}`, this.api.url);

        if (creatorUid !== undefined) {
            url.searchParams.append('creatorUid', creatorUid);
        }

        const missions = await this.api.fetch(url, {
            method: 'DELETE',
            headers: this.#headers(opts),
        });

        if (!missions.data.length) throw new Error('Delete Mission Keyword didn\'t return a mission or an error');

        const mission = missions.data[0];

        return this.#stdMission(mission);
    }

    /**
     * Delete a mission
     *
     * {@link https://docs.tak.gov/api/takserver/redoc#tag/mission-api/operation/deleteMission TAK Server Docs}.
     */
    async delete(
        name: string,
        query: Static<typeof MissionDeleteInput>,
        opts?: Static<typeof MissionOptions>
    ) {
        if (this.#isGUID(name)) {
            const url = new URL('/Marti/api/missions', this.api.url);

            url.searchParams.append('guid', name);

            let q: keyof Static<typeof MissionDeleteInput>;
            for (q in query) {
                if (query[q] !== undefined) {
                    url.searchParams.append(q, String(query[q]));
                }
            }

            return await this.api.fetch(url, {
                method: 'DELETE',
                headers: this.#headers(opts),
            });
        } else {
            const url = new URL(`/Marti/api/missions/${this.#encodeName(name)}`, this.api.url);

            let q: keyof Static<typeof MissionDeleteInput>;
            for (q in query) {
                if (query[q] !== undefined) {
                    url.searchParams.append(q, String(query[q]));
                }
            }

            return await this.api.fetch(url, {
                method: 'DELETE',
                headers: this.#headers(opts),
            });
        }
    }
}