BEGIN;

CREATE SEQUENCE LOCATION_SYSTEM_SEQ;

CREATE TABLE location_system (
    id          int NOT NULL,
    name        VARCHAR(32)  NOT NULL,
    description VARCHAR(255),
    PRIMARY KEY(id)
);


CREATE SEQUENCE ELEVATION_MODEL_SEQ;

CREATE TABLE elevation_model (
    id          int NOT NULL,
    name        VARCHAR(32)  NOT NULL,
    unit_id     int NOT NULL,
    PRIMARY KEY(id),
    CONSTRAINT fk_unit FOREIGN KEY (unit_id) REFERENCES units(id)
);

CREATE SEQUENCE BED_HEIGHT_TYPE_SEQ;

CREATE TABLE bed_height_type (
    id          int NOT NULL,
    name        VARCHAR(16)  NOT NULL,
    description VARCHAR(255),
    PRIMARY KEY(id)
);



CREATE SEQUENCE BED_HEIGHT_SINGLE_ID_SEQ;

CREATE TABLE bed_height_single (
    id                      int NOT NULL,
    river_id                int NOT NULL,
    year                    int NOT NULL,
    sounding_width          int NOT NULL,
    type_id                 int NOT NULL,
    location_system_id      int NOT NULL,
    cur_elevation_model_id  int NOT NULL,
    old_elevation_model_id  int,
    range_id                int NOT NULL,
    evaluation_by           VARCHAR(255),
    description             VARCHAR(255),
    PRIMARY KEY(id),
    CONSTRAINT fk_bed_single_river_id FOREIGN KEY (river_id) REFERENCES rivers(id),
    CONSTRAINT fk_type FOREIGN KEY (type_id) REFERENCES bed_height_type(id),
    CONSTRAINT fk_location_system FOREIGN KEY (location_system_id) REFERENCES location_system(id),
    CONSTRAINT fk_cur_elevation_model FOREIGN KEY (cur_elevation_model_id) REFERENCES elevation_model(id),
    CONSTRAINT fk_old_elevation_model FOREIGN KEY (old_elevation_model_id) REFERENCES elevation_model(id),
    CONSTRAINT fk_range FOREIGN KEY (range_id) REFERENCES ranges(id)
);


CREATE SEQUENCE BED_HEIGHT_EPOCH_ID_SEQ;

CREATE TABLE bed_height_epoch (
    id                      int NOT NULL,
    river_id                int NOT NULL,
    time_interval_id        int NOT NULL,
    -- sounding_with           int NOT NULL,
    -- type_id                 int NOT NULL,
    cur_elevation_model_id  int NOT NULL,
    old_elevation_model_id  int,
    range_id                int NOT NULL,
    evaluation_by           VARCHAR(255),
    description             VARCHAR(255),
    PRIMARY KEY(id),
    CONSTRAINT fk_time_interval FOREIGN KEY (time_interval_id) REFERENCES time_intervals(id),
    CONSTRAINT fk_epoch_cur_elevation_model FOREIGN KEY (cur_elevation_model_id) REFERENCES elevation_model(id),
    CONSTRAINT fk_epoch_old_elevation_model FOREIGN KEY (old_elevation_model_id) REFERENCES elevation_model(id),
    CONSTRAINT fk_epoch_range FOREIGN KEY (range_id) REFERENCES ranges(id)
);


CREATE SEQUENCE BED_SINGLE_VALUES_ID_SEQ;

CREATE TABLE bed_height_single_values (
    id                      int NOT NULL,
    bed_height_single_id    int NOT NULL,
    station                 NUMERIC NOT NULL,
    height                  NUMERIC,
    uncertainty             NUMERIC,
    data_gap                NUMERIC NOT NULL,
    sounding_width          NUMERIC NOT NULL,
    width                   NUMERIC NOT NULL,
    PRIMARY KEY(id),
    CONSTRAINT fk_bed_single_values_parent FOREIGN KEY (bed_height_single_id) REFERENCES bed_height_single(id)
);


CREATE SEQUENCE BED_EPOCH_VALUES_ID_SEQ;

CREATE TABLE bed_height_epoch_values (
    id                      int NOT NULL,
    bed_height_epoch_id     int NOT NULL,
    station                 NUMERIC NOT NULL,
    height                  NUMERIC,
    PRIMARY KEY(id),
    CONSTRAINT fk_bed_epoch_values_parent FOREIGN KEY (bed_height_epoch_id) REFERENCES bed_height_epoch(id)
);


CREATE SEQUENCE DEPTHS_ID_SEQ;

CREATE TABLE depths (
    id      int NOT NULL,
    lower   NUMERIC NOT NULL,
    upper   NUMERIC NOT NULL,
    unit_id int NOT NULL,
    PRIMARY KEY(id),
    CONSTRAINT fk_depths_unit_id FOREIGN KEY (unit_id) REFERENCES units(id)
);


CREATE SEQUENCE SEDIMENT_DENSITY_ID_SEQ;

CREATE TABLE sediment_density (
    id          int NOT NULL,
    river_id    int NOT NULL,
    depth_id    int NOT NULL,
    unit_id     int NOT NULL,
    description VARCHAR(256),
    PRIMARY KEY(id),
    CONSTRAINT fk_sd_river_id FOREIGN KEY (river_id) REFERENCES rivers(id),
    CONSTRAINT fk_sd_depth_id FOREIGN KEY (depth_id) REFERENCES depths(id),
    CONSTRAINT fk_sd_unit_id FOREIGN KEY (unit_id) REFERENCES units(id)
);


CREATE SEQUENCE SEDIMENT_DENSITY_VALUES_ID_SEQ;

CREATE TABLE sediment_density_values (
    id                  int NOT NULL,
    sediment_density_id int NOT NULL,
    station             NUMERIC NOT NULL,
    density             NUMERIC NOT NULL,
    description         VARCHAR(256),
    PRIMARY KEY(id),
    CONSTRAINT fk_sdv_sediment_density_id FOREIGN KEY(sediment_density_id) REFERENCES sediment_density(id)
);


CREATE SEQUENCE MORPHOLOGIC_WIDTH_ID_SEQ;

CREATE TABLE morphologic_width (
    id          int NOT NULL,
    river_id    int NOT NULL,
    unit_id     int NOT NULL,
    PRIMARY KEY(id),
    CONSTRAINT fk_mw_river_id FOREIGN KEY(river_id) REFERENCES rivers(id),
    CONSTRAINT fk_mw_unit_id FOREIGN KEY(unit_id) REFERENCES units(id)
);


CREATE SEQUENCE MORPH_WIDTH_VALUES_ID_SEQ;

CREATE TABLE morphologic_width_values (
    id                      int NOT NULL,
    morphologic_width_id    int NOT NULL,
    station                 NUMERIC NOT NULL,
    width                   NUMERIC NOT NULL,
    description             VARCHAR(256),
    PRIMARY KEY(id),
    CONSTRAINT fk_mwv_morphologic_width_id FOREIGN KEY (morphologic_width_id) REFERENCES morphologic_width(id)
);

COMMIT;